1
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Portillo-Estrada M. Limitations of Plant Stress Tolerance upon Heat and CO 2 Exposure in Black Poplar: Assessment of Photosynthetic Traits and Stress Volatile Emissions. Plants (Basel) 2024; 13:1165. [PMID: 38674574 DOI: 10.3390/plants13081165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024]
Abstract
Volatile organic compounds (VOCs) emitted by plants may help in understanding the status of a plant's physiology and its coping with mild to severe stress. Future climatic projections reveal that shifts in temperature and CO2 availability will occur, and plants may incur the uncoupling of carbon assimilation and synthesis of key molecules. This study explores the patterns of emissions of key VOCs (isoprene, methanol, acetaldehyde, and acetic acid) emitted by poplar leaves (more than 350) under a combined gradient of temperature (12-42 °C) and air CO2 concentration (400-1500 ppm), along with measurements of photosynthetic rates and stomatal conductance. Isoprene emission exhibited a rise with temperature and CO2 availability, peaking at 39 °C, the temperature at which methanol emission started to peak, illustrating the limit of stress tolerance to severe damage. Isoprene emission was uncoupled from the photosynthesis rate, indicating a shift from the carbon source for isoprene synthesis, while assimilation was decreased. Methanol and acetaldehyde emissions were correlated with stomatal conductance and peaked at 25 °C and 1200 ppm CO2. Acetic acid emissions lacked a clear correlation with stomatal conductance and the emission pattern of its precursor acetaldehyde. This study offers crucial insights into the limitations of photosynthetic carbon and stress tolerance.
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2
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Jiang T, Li Y, Tang Y, Zhang S, Le D, Rahman TS, Tao F. Breaking Continuously Packed Bimetallic Sites to Singly Dispersed on Nonmetallic Support for Efficient Hydrogen Production. ACS Appl Mater Interfaces 2024. [PMID: 38632669 DOI: 10.1021/acsami.3c18160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
We have synthesized Pt1Zn3/ZnO, also termed 0.01 wt %Pt/ZnO-O2-H2, as a catalyst containing singly dispersed single-atom bimetallic sites, also called a catalyst of singly dispersed bimetallic sites or a catalyst of isolated single-atom bimetallic sites. Its catalytic activity in partial oxidation of methanol to hydrogen at 290 °C is found to be 2-3 orders of magnitude higher than that of Pt-Zn bimetallic nanoparticles supported on ZnO, 5.0 wt %Pt/ZnO-N2-H2. Selectivity for H2 on Pt1Zn3/ZnO reaches 96%-100% at 290-330 °C, arising from the uniform coordination environment of single-atom Pt1 in singly dispersed single-atom bimetallic sites, Pt1Zn3 on 0.01 wt %Pt/ZnO-O2-H2, which is sharply different from various coordination environments of Pt atoms in coexisting PtxZny (x ≥ 0, y ≥ 0) sites on Pt-Zn bimetallic nanoparticles. Computational simulations attribute the extraordinary catalytic performance of Pt1Zn3/ZnO to the stronger adsorption of methanol and the lower activation barriers in O-H dissociation of CH3OH, C-H dissociations of CH2O to CO, and coupling of intermediate CO with atomic oxygen to form CO2 on Pt1Zn3/ZnO as compared to those on Pt-Zn bimetallic nanoparticles. It demonstrates that anchoring uniform, isolated single-atom bimetallic sites, also called singly dispersed bimetallic sites on a nonmetallic support can create new catalysts for certain types of reactions with much higher activity and selectivity in contrast to bimetallic nanoparticle catalysts with coexisting, various metallic sites MxAy (x ≥ 0, y ≥ 0). As these single-atom bimetallic sites are cationic and anchored on a nonmetallic support, the catalyst of singly dispersed single-atom bimetallic sites is different from a single-atom alloy nanoparticle catalyst. The critical role of the 0.01 wt %Pt in the extraordinary catalytic performance calls on fundamental studies of the profound role of a trace amount of a metal in heterogeneous catalysis.
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Affiliation(s)
- Tao Jiang
- Department of Physics, University of Central Florida, Orlando, Florida 32816, United States
| | - Yuting Li
- Department of Chemical and Petroleum Engineering, Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, Kansas 66049, United States
| | - Yu Tang
- Department of Chemical and Petroleum Engineering, Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, Kansas 66049, United States
| | - Shiran Zhang
- Department of Chemical and Petroleum Engineering, Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, Kansas 66049, United States
| | - Duy Le
- Department of Physics, University of Central Florida, Orlando, Florida 32816, United States
| | - Talat S Rahman
- Department of Physics, University of Central Florida, Orlando, Florida 32816, United States
| | - Franklin Tao
- Department of Chemical and Petroleum Engineering, Center for Environmentally Beneficial Catalysis, University of Kansas, Lawrence, Kansas 66049, United States
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3
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Cheng M, Cao N, Wang Z, Wang K, Pu T, Li Y, Sun T, Yue X, Ni W, Dai W, He Y, Shi Y, Zhang P, Zhu Y, Xie P. Strain-Induced Self-Assembly at Interface of Two-Dimensional Heterostructures Boosts CO 2 Reduction to Methanol by H 2O. ACS Nano 2024; 18:10582-10595. [PMID: 38564712 DOI: 10.1021/acsnano.4c00350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
CO2 conversion with pure H2O into CH3OH and O2 driven by solar energy can supply fuels and life-essential substances for extraterrestrial exploration. However, the effective production of CH3OH is significantly challenging. Here we report an organozinc complex/MoS2 heterostructure linked by well-defined zinc-sulfur covalent bonds derived by the structural deformation and intensive coupling of dx2 - y2(Zn)-p(S) orbitals at the interface, resulting in distinctive charge transfer behaviors and excellent redox capabilities as revealed by experimental characterizations and first-principle calculations. The synthesis strategy is further generalized to more organometallic compounds, achieving various heterostructures for CO2 photoreduction. The optimal catalyst delivers a promising CH3OH yield of 2.57 mmol gcat-1 h-1 and selectivity of more than 99.5%. The reverse water gas shift mechanism is identified for methanol formation. Meanwhile, energy-unfavorable adsorption of methanol on MoS2, where the photogenerated holes accumulate, ensures the selective oxidation of water over methanol.
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Affiliation(s)
- Ming Cheng
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Ning Cao
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Zhi Wang
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Ke Wang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Tiancheng Pu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Yukun Li
- State Center for International Cooperation on Designer Low-Carbon and Environmental Materials School of Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Tulai Sun
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Xuanyu Yue
- Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
| | - Wenkang Ni
- Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
| | - Wenxin Dai
- Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China
| | - Yi He
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Yao Shi
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Peng Zhang
- State Center for International Cooperation on Designer Low-Carbon and Environmental Materials School of Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yihan Zhu
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Pengfei Xie
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
- State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Research Institute of Rare Earths, Baotou 014030, China
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4
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Palevich N, Jeyanathan J, Reilly K, Palevich FP, Maclean PH, Li D, Altermann E, Kelly WJ, Leahy SC, Attwood GT, Ronimus RS, Henderson G, Janssen PH. Complete genome sequence of Methanosphaera sp. ISO3-F5, a rumen methylotrophic methanogen. Microbiol Resour Announc 2024; 13:e0004324. [PMID: 38426731 PMCID: PMC11008217 DOI: 10.1128/mra.00043-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 02/13/2024] [Indexed: 03/02/2024] Open
Abstract
Methanosphaera spp. are methylotrophic methanogenic archaea and members of the order Methanobacteriales with few cultured representatives. Methanosphaera sp. ISO3-F5 was isolated from sheep rumen contents in New Zealand. Here, we report its complete genome, consisting of a large chromosome and a megaplasmid (GenBank accession numbers CP118753 and CP118754, respectively).
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Affiliation(s)
- Nikola Palevich
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
| | - Jeyamalar Jeyanathan
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Kerri Reilly
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
| | - Faith P. Palevich
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
- AgResearch Ltd., Hopkirk Research Institute, Palmerston North, New Zealand
| | - Paul H. Maclean
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
| | - Dong Li
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
| | - Eric Altermann
- School of Veterinary Science and Centre for Bioparticle Applications, Massey University, Palmerston North, New Zealand
- Blue Barn Life Sciences Ltd., Feilding, New Zealand
| | - William J. Kelly
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
| | - Sinead C. Leahy
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
- New Zealand Agricultural Greenhouse Gas Research Centre (NZAGRC), Palmerston North, New Zealand
| | - Graeme T. Attwood
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
| | - Ron S. Ronimus
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
| | - Gemma Henderson
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
- Bacthera AG, Basel, Switzerland
| | - Peter H. Janssen
- AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
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5
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Supiyeva Z, Mansurov Z, Azat S, Abbas Q. A unique choline nitrate-based organo-aqueous electrolyte enables carbon/carbon supercapacitor operation in a wide temperature window (-40°C to 60°C). Front Chem 2024; 12:1377144. [PMID: 38666046 PMCID: PMC11043481 DOI: 10.3389/fchem.2024.1377144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 03/04/2024] [Indexed: 04/28/2024] Open
Abstract
Some drawbacks of aqueous electrolytes, such as freezing at low temperatures and extensive evaporation at high temperatures, restrict their industrial viability. This article introduces a stabilized neutral aqueous choline nitrate electrolyte with a 10 vol.% methanol additive that improves the temperature stability of the electrolyte via enhanced hydrogen bonding with the choline cation and water and maintains the good state of health of the supercapacitor cells under extreme operating conditions. The symmetric carbon/carbon supercapacitor in 5 mol/kg choline nitrate + 10 vol.% methanol (σ = 76 ms/cm at 25°C) exhibits 103 F/g at room temperature during galvanostatic charge/discharge up to 1.5 V, which decreases to 78 F/g at -40°C due to the suppressed Faradaic reactions occurring at the carbon electrode. However, under similar charge/discharge conditions, the capacitance increases to 112 F/g when the supercapacitor operates at 60°C. This capacitance increase at high temperatures is due to the Faradaic reactions related to enhanced hydrogen adsorption and desorption. The most remarkable aspect of the proposed supercapacitor is its ability to maintain capacitance and power performance during high voltage floating at 1.5 V at three tested temperatures (-40°C, 24°C, and 60°C).
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Affiliation(s)
- Zhazira Supiyeva
- Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty, Kazakhstan
- Institute of Combustion Problems, Almaty, Kazakhstan
| | - Zulkhair Mansurov
- Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty, Kazakhstan
- Institute of Combustion Problems, Almaty, Kazakhstan
| | - Seitkhan Azat
- Laboratory of Engineering Profile, Satbayev University, Almaty, Kazakhstan
| | - Qamar Abbas
- Faculty of Chemical Technology, Poznan University of Technology, Poznan, Poland
- Institute for Chemistry and Technology of Materials, Graz University of Technology, Graz, Austria
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6
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Goeltl F, Bhandari S, Lebron-Rodriguez E, Gold JI, Hutton DJ, Zones SI, Hermans I, Dumesic JA, Mavrikakis M. Exploring the Impact of Active Site Structure on the Conversion of Methane to Methanol in Cu-Exchanged Zeolites. Angew Chem Int Ed Engl 2024:e202403179. [PMID: 38574295 DOI: 10.1002/anie.202403179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/13/2024] [Accepted: 04/03/2024] [Indexed: 04/06/2024]
Abstract
In the past, Cu-oxo or -hydroxy clusters hosted in zeolites have been suggested to enable the selective conversion of methane to methanol, but the impact of the active site's stoichiometry and structure on methanol production is still poorly understood. Herein, we apply theoretical modeling in conjunction with experiments to study the impact of these two factors on partial methane oxidation in the Cu-exchanged zeolite SSZ-13. Phase diagrams developed from first-principles suggest that Cu-hydroxy or Cu-oxo dimers are stabilized when O2 or N2O are used to activate the catalyst, respectively. We confirm these predictions experimentally and determine that in a stepwise conversion process, Cu-oxo dimers can convert twice as much methane to methanol compared to Cu-hydroxyl dimers. Our theoretical models rationalize how Cu-di-oxo dimers can convert up to two methane molecules to methanol, while Cu-di-hydroxyl dimers can convert only one methane molecule to methanol per catalytic cycle. These findings imply that in Cu clusters, at least one oxo group or two hydroxyl groups are needed to convert one methane molecule to methanol per cycle. This simple structure-activity relationship allows to intuitively understand the potential of small oxygenated or hydroxylated transition metal clusters to convert methane to methanol.
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Affiliation(s)
- Florian Goeltl
- University of Arizona, Biosystems Engineering, 1177 E 4th Street, Shantz Building, 85721, Tucson, UNITED STATES
| | - Saurabh Bhandari
- University of Wisconsin-Madison, Department of Chemical and Biological Engineering, UNITED STATES
| | | | - Jake I Gold
- University of Wisconsin-Madison, Chemical and Biological Engineering, UNITED STATES
| | - Daniel J Hutton
- The University of Arizona, Biosystems Engineering, UNITED STATES
| | - Stacey I Zones
- Chevron Energy Technology Co, no department, UNITED STATES
| | - Ive Hermans
- University of Wisconsin-Madison, Chemistry, UNITED STATES
| | - James A Dumesic
- University of Wisconsin-Madison, Chemical and Biological Engineering, UNITED STATES
| | - Manos Mavrikakis
- University of Wisconsin-Madison, Chemical and Biological Engineering, UNITED STATES
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7
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Niaei N, Hassanpour S, Petr J. Chiral resolution of cationic piperazine derivatives by capillary electrophoresis using sulfated β-cyclodextrin. Electrophoresis 2024. [PMID: 38576224 DOI: 10.1002/elps.202300271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/14/2024] [Accepted: 03/22/2024] [Indexed: 04/06/2024]
Abstract
This research focuses on the development and validation of a capillary electrophoresis (CE) method for the chiral separation of three H1-antihistamine drugs chlorcyclizine, norchlorcyclizine, and neobenodine using sulfated β-cyclodextrin (S-β-CD) as the chiral selector. The study explores various factors influencing the separation efficiency, including CD concentration, organic modifier content, voltage application, and buffer pH. Optimal conditions were identified as a 100 mM phosphate buffer (pH 6.0) with 34 mg mL-1 S-β-CD and 40% (v/v) methanol. The method demonstrated excellent linearity in calibration curves, with coefficients of determination exceeding 0.99 for each enantiomer. Precision studies revealed good intra- and inter-day precision for migration times and peak areas. The limits of detection and quantification for the analytes were within the ranges of 5.9-11.4 and 18-34.6 µmol L-1, respectively. Overall, the developed CE method offers a robust and precise approach for the chiral separation of H1-antihistamine drugs, holding promise for pharmaceutical applications.
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Affiliation(s)
- Navid Niaei
- Department of Analytical Chemistry, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic
| | - Soodabeh Hassanpour
- Department of Analytical Chemistry, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic
| | - Jan Petr
- Department of Analytical Chemistry, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic
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8
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Wu Y, Xu K, Tian J, Shang L, Tan KB, Sun H, Sun K, Rao X, Zhan G. Construction of Ni/In 2O 3 Integrated Nanocatalysts Based on MIL-68(In) Precursors for Efficient CO 2 Hydrogenation to Methanol. ACS Appl Mater Interfaces 2024; 16:16186-16202. [PMID: 38516696 DOI: 10.1021/acsami.3c19311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
The efficient and economic conversion of CO2 and renewable H2 into methanol has received intensive attention due to growing concern for anthropogenic CO2 emissions, particularly from fossil fuel combustion. Herein, we have developed a novel method for preparing Ni/In2O3 nanocatalysts by using porous MIL-68(In) and nickel(II) acetylacetonate (Ni(acac)2) as the dual precursors of In2O3 and Ni components, respectively. Combined with in-depth characterization analysis, it was revealed that the utilization of MIL-68(In) as precursors favored the good distribution of Ni nanoparticles (∼6.2 nm) on the porous In2O3 support and inhibited the metal sintering at high temperatures. The varied catalyst fabrication parameters were explored, indicating that the designed Ni/In2O3 catalyst (Ni content of 5 wt %) exhibited better catalytic performance than the compared catalyst prepared using In(OH)3 as a precursor of In2O3. The obtained Ni/In2O3 catalyst also showed excellent durability in long-term tests (120 h). However, a high Ni loading (31 wt %) would result in the formation of the Ni-In alloy phase during the CO2 hydrogenation which favored CO formation with selectivity as high as 69%. This phenomenon is more obvious if Ni and In2O3 had a strong interaction, depending on the catalyst fabrication methods. In addition, with the aid of in situ diffuse reflectance infrared Fourier transform spectroscopy and density functional theory (DFT) calculations, the Ni/In2O3 catalyst predominantly follows the formate pathway in the CO2 hydrogenation to methanol, with HCOO* and *H3CO as the major intermediates, while the small size of Ni particles is beneficial to the formation of formate species based on DFT calculation. This study suggests that the Ni/In2O3 nanocatalyst fabricated using metal-organic frameworks as precursors can effectively promote CO2 thermal hydrogenation to methanol.
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Affiliation(s)
- Yiling Wu
- Academy of Advanced Carbon Conversion Technology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
| | - Kaiji Xu
- Academy of Advanced Carbon Conversion Technology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
| | - Jian Tian
- Academy of Advanced Carbon Conversion Technology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
| | - Longmei Shang
- Academy of Advanced Carbon Conversion Technology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
| | - Kok Bing Tan
- Academy of Advanced Carbon Conversion Technology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
| | - Hao Sun
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry (CAF), 16 Suojin Five Village, Nanjing 210042, Jiangsu, P. R. China
| | - Kang Sun
- Academy of Advanced Carbon Conversion Technology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry (CAF), 16 Suojin Five Village, Nanjing 210042, Jiangsu, P. R. China
| | - Xiaoping Rao
- Academy of Advanced Carbon Conversion Technology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
| | - Guowu Zhan
- Academy of Advanced Carbon Conversion Technology, College of Chemical Engineering, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, 668 Jimei Avenue, Xiamen 361021, Fujian, P. R. China
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Bachmann M, Parsons M, Klaus S, Kurt H, Chandran K, Stockard D, Wells G, De Clippeleir H, Bott C. Comparing methanol and glycerol as carbon sources for mainstream partial denitrification/anammox in an IFAS process. Water Environ Res 2024; 96:e11017. [PMID: 38565318 DOI: 10.1002/wer.11017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/26/2024] [Accepted: 03/04/2024] [Indexed: 04/04/2024]
Abstract
This study explored the implementation of mainstream partial denitrification with anammox (PdNA) in the second anoxic zone of a wastewater treatment process in an integrated fixed film activated sludge (IFAS) configuration. A pilot study was conducted to compare the use of methanol and glycerol as external carbon sources for an IFAS PdNA startup, with a goal to optimize nitrogen removal while minimizing carbon usage. The study also investigated the establishment of anammox bacteria on virgin carriers in IFAS reactors without the use of seeding, and it is the first IFAS PdNA startup to use methanol as an external carbon source. The establishment of anammox bacteria was confirmed in both reactors 102 days after startup. Although the glycerol-fed reactor achieved a higher steady-state maximum ammonia removal rate because of anammox bacteria (1.6 ± 0.3 g/m2/day) in comparison with the methanol-fed reactor (1.2 ± 0.2 g/m2/day), both the glycerol- and methanol-fed reactors achieved similar average in situ ammonia removal rates of 0.39 ± 0.2 g/m2/day and 0.40 ± 0.2 g/m2/day, respectively. Additionally, when the upstream ammonia versus NOx (AvN) control system maintained an ideal ratio of 0.40-0.50 g/g, the methanol-fed reactor attained a lower average effluent TIN concentration (3.50 ± 1.2 mg/L) than the glycerol-fed reactor (4.43 ± 1.6 mg/L), which was prone to elevated nitrite concentrations in the effluent. Overall, this research highlights the potential for PdNA in IFAS configurations as an efficient and cost-saving method for wastewater treatment, with methanol as a viable carbon source for the establishment of anammox bacteria. PRACTITIONER POINTS: Methanol is an effective external carbon source for an anammox startup that avoids the need for costly alternative carbon sources. The methanol-fed reactor demonstrated higher TIN removal compared with the glycerol-fed reactor because of less overproduction of nitrite. Anammox bacteria was established in an IFAS reactor without seeding and used internally stored carbon to reduce external carbon addition. Controlling the influent ammonia versus NOx (AvN) ratio between 0.40 and 0.50 g/g allowed for low and stable TIN effluent conditions.
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Affiliation(s)
- Megan Bachmann
- Hampton Roads Sanitation District, Virginia Beach, Virginia, USA
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Mike Parsons
- Hampton Roads Sanitation District, Virginia Beach, Virginia, USA
| | - Stephanie Klaus
- Hampton Roads Sanitation District, Virginia Beach, Virginia, USA
| | - Halil Kurt
- Department of Medical Biology, Hamidiye International Faculty of Medicine, University of Health Sciences, İstanbul, Turkey
- Department of Earth and Environmental Engineering, Columbia University, New York, New York, USA
| | - Kartik Chandran
- Department of Earth and Environmental Engineering, Columbia University, New York, New York, USA
| | - Daniel Stockard
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, Illinois, USA
| | - George Wells
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, Illinois, USA
| | | | - Charles Bott
- Hampton Roads Sanitation District, Virginia Beach, Virginia, USA
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10
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Mahnaz F, Mangalindan JR, Dharmalingam BC, Vito J, Lin YT, Akbulut M, Varghese JJ, Shetty M. Intermediate Transfer Rates and Solid-State Ion Exchange are Key Factors Determining the Bifunctionality of In 2O 3/HZSM-5 Tandem CO 2 Hydrogenation Catalyst. ACS Sustain Chem Eng 2024; 12:5197-5210. [PMID: 38577585 PMCID: PMC10988559 DOI: 10.1021/acssuschemeng.3c08250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 04/06/2024]
Abstract
Identifying the descriptors for the synergistic catalytic activity of bifunctional oxide-zeolite catalysts constitutes a formidable challenge in realizing the potential of tandem hydrogenation of CO2 to hydrocarbons (HC) for sustainable fuel production. Herein, we combined CH3OH synthesis from CO2 and H2 on In2O3 and methanol-to-hydrocarbons (MTH) conversion on HZSM-5 and discerned the descriptors by leveraging the distance-dependent reactivity of bifunctional In2O3 and HZSM-5 admixtures. We modulated the distance between redox sites of In2O3 and acid sites of HZSM-5 from milliscale (∼10 mm) to microscale (∼300 μm) and observed a 3-fold increase in space-time yield of HC and CH3OH (7.5 × 10-5 molC gcat-1 min-1 and 2.5 × 10-5 molC gcat-1 min-1, respectively), due to a 10-fold increased rate of CH3OH advection (1.43 and 0.143 s-1 at microscale and milliscale, respectively) from redox to acid sites. Intriguingly, despite the potential of a three-order-of-magnitude enhanced CH3OH transfer at a nanoscale distance (∼300 nm), the sole product formed was CH4. Our reactivity data combined with Raman, Fourier transform infrared (FTIR), and X-ray photoelectron spectroscopy (XPS) revealed the occurrence of solid-state-ion-exchange (SSIE) between acid sites and Inδ+ ions, likely forming In2O moieties, inhibiting C-C coupling and promoting CH4 formation through CH3OH hydrodeoxygenation (HDO). Density functional theory (DFT) calculations further revealed that CH3OH adsorption on the In2O moiety with preadsorbed and dissociated H2 forming an H-In-OH-In moiety is the likely reaction mechanism, with the kinetically relevant step appearing to be the hydrogenation of the methyl species. Overall, our study revealed that efficient CH3OH transfer and prevention of ion exchange are the key descriptors in achieving catalytic synergy in bifunctional In2O3/HZSM-5 systems.
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Affiliation(s)
- Fatima Mahnaz
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, 100 Spence Street, College
Station, Texas 77843, United States
| | - Jasan Robey Mangalindan
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, 100 Spence Street, College
Station, Texas 77843, United States
| | - Balaji C. Dharmalingam
- Department
of Chemical Engineering, Indian Institute
of Technology Madras, Chennai, Tamil Nadu 600036, India
| | - Jenna Vito
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, 100 Spence Street, College
Station, Texas 77843, United States
| | - Yu-Ting Lin
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, 100 Spence Street, College
Station, Texas 77843, United States
| | - Mustafa Akbulut
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, 100 Spence Street, College
Station, Texas 77843, United States
| | - Jithin John Varghese
- Department
of Chemical Engineering, Indian Institute
of Technology Madras, Chennai, Tamil Nadu 600036, India
| | - Manish Shetty
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, 100 Spence Street, College
Station, Texas 77843, United States
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11
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Xiao M, Baktash A, Lyu M, Zhao G, Jin Y, Wang L. Unveiling the Role of Water in Heterogeneous Photocatalysis of Methanol Conversion for Efficient Hydrogen Production. Angew Chem Int Ed Engl 2024:e202402004. [PMID: 38531783 DOI: 10.1002/anie.202402004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/11/2024] [Accepted: 03/25/2024] [Indexed: 03/28/2024]
Abstract
Water molecules, which act as both solvent and reactant, play critical roles in photocatalytic reactions for methanol conversion. However, the influence of water on the adsorption of methanol and desorption of liquid products, which are two essential steps that control the performance in photocatalysis, has been well under-explored. Herein, we reveal the role of water in heterogeneous photocatalytic processes of methanol conversion on the platinized carbon nitride (Pt/C3N4) model photocatalyst. In situ spectroscopy techniques, isotope effects, and computational calculations demonstrate that water shows adverse effects on the adsorption of methanol molecules and desorption processes of methanol oxidation products on the surface of Pt/C3N4, significantly altering the reaction pathways in photocatalytic methanol conversion process. Guided by these discoveries, a photothermal-assisted photocatalytic system is designed to achieve a high solar-to-hydrogen (STH) conversion efficiency of 2.3 %, which is among the highest values reported. This work highlights the important roles of solvents in controlling the adsorption/desorption behaviours of liquid-phase heterogeneous catalysis.
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Affiliation(s)
- Mu Xiao
- School of Chemical Engineering Nanomaterials Centre, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland (UQ), Brisbane, QLD 4072, Australia
| | - Ardeshir Baktash
- School of Chemical Engineering Nanomaterials Centre, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland (UQ), Brisbane, QLD 4072, Australia
| | - Miaoqiang Lyu
- School of Chemical Engineering Nanomaterials Centre, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland (UQ), Brisbane, QLD 4072, Australia
| | - Guangyu Zhao
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Mineral Resources, 1 Technology Court, Pullenvale, QLD 4069, Australia
| | - Yonggang Jin
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Mineral Resources, 1 Technology Court, Pullenvale, QLD 4069, Australia
| | - Lianzhou Wang
- School of Chemical Engineering Nanomaterials Centre, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland (UQ), Brisbane, QLD 4072, Australia
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12
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Akinaw MA, P Nair SK, Usure RE, Leta B, Kedir A, Mamo SA, Waritu NC, Jemal M, Mulat BK. Nephroprotective Effect of the Leaf Extract of Ajuga remota Benth Against Gentamicin-Induced Nephrotoxicity in Swiss Albino Mice. J Exp Pharmacol 2024; 16:159-171. [PMID: 38596746 PMCID: PMC11001546 DOI: 10.2147/jep.s455226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/19/2024] [Indexed: 04/11/2024] Open
Abstract
Background Drug-induced kidney injury was among the most common renal damages, from which gentamicin occupies around 25% of this injury. Gentamicin-induced renal damage is caused by increased free radicals with subsequent amplified inflammation. Ajuga remota leaf extract has many phytochemicals with antioxidant activities, which may improve gentamicin-induced renal damage. Thus, we aimed to investigate the nephroprotective effect of Ajuga remota leaf methanolic extract on gentamicin-induced nephrotoxicity in Swiss Albino Mice. Methods An experimental study design was used on 30 experimental mice randomly allocated in six groups: Group I, II, II, IV, and VI, among which mice were given only distilled water, only gentamicin, 600 mg/kg Ajuga remota leaf extract only, gentamicin along with 200 mg/kg extract, gentamicin with 400 mg/kg extract and gentamicin with 600 mg/kg extract, respectively. At the end of the experiment, the mice were sacrificed after being anaesthetized, and blood samples were collected through a cardiac puncture for renal function tests while the kidneys were removed for histopathological evaluation. The data were entered into Epidata version 4.6 and exported to SPSS version 25 for further analysis using one-way analysis of variance. Statistical significance was set at p < 0.05. Results Group II mice had significantly higher levels of serum creatinine and blood urea levels compared to group I and III. The body weight of the mice in group V and group VI showed a significant increase compared with Group II. Serum creatinine and blood urea levels were reduced significantly in the Ajuga remota leaf extract administered group of mice compared to group II. Abnormal kidney architectural changes were seen among group II mice; however, those changes were improved after administration of Ajuga remota leaf methanolic extract. Conclusion Methanol extract of Ajuga remota leaf provided effective protection against gentamicin-induced oxidative renal damage through its antioxidant effects.
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Affiliation(s)
- Metages Ayele Akinaw
- Department of Biomedical Sciences, School of Medicine, Jimma University, Jimma, Ethiopia
| | - Suresh Kumar P Nair
- Department of Biomedical Sciences, School of Medicine, Jimma University, Jimma, Ethiopia
| | - Rashed Edris Usure
- Department of Pharmaceutical Chemistry, School of Pharmacy, Hawassa University, Hawassa, Ethiopia
| | - Bati Leta
- Department of Biomedical Sciences, School of Medicine, Jimma University, Jimma, Ethiopia
| | - Abdo Kedir
- Department of Pathology, School of Medicine, Jimma University, Jimma, Ethiopia
| | - Selam Ayele Mamo
- Department of Adult Health Nursing, School of Nursing, Jimma University, Jimma, Ethiopia
| | - Nuredin Chura Waritu
- Department of Biomedical Sciences, School of Medicine, Wolaita Sodo University, Wolaita Sodo, Ethiopia
| | - Mohammed Jemal
- Department of Biomedical Sciences, School of Medicine, Debre Merkos University, Debre Merkos, Ethiopia
| | - Berhane Kebede Mulat
- Department of Biomedical Sciences, School of Medicine, Jimma University, Jimma, Ethiopia
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13
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Guo P, Xu Y, Wu H, Zhang L. Membrane-Free Selective Semi-Hydrogenation of Alkynes Over an In Situ Formed Copper Nanoparticle Electrode. Small 2024:e2401107. [PMID: 38530045 DOI: 10.1002/smll.202401107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/12/2024] [Indexed: 03/27/2024]
Abstract
Selective semi-hydrogenation of alkynes is a significant reaction for preparing functionalized alkenes. Electrochemical semi-hydrogenation presents a sustainable alternative to the traditional thermal process. In this research, affordable copper acetylacetonate is employed as a catalyst precursor for the electrocatalytic hydrogenation of alkynes, using MeOH as the hydrogen source in an undivided cell. Good to excellent yields for both aromatic and aliphatic internal/terminal alkynes are obtained under constant current conditions. Notably, up to 99% Z selectivity is achieved for various internal alkynes. Mechanistic investigations revealed the formation of copper nanoparticles (NPs) at the cathode during electrolysis, acting as the catalyst for the selective semireduction of alkynes. The copper NPs deposited cathode demonstrated reusable for further hydrogenation.
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Affiliation(s)
- Pengyu Guo
- School of Chemistry and Material Sciences, Hangzhou Institute of Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, China
| | - Yousen Xu
- School of Chemistry and Material Sciences, Hangzhou Institute of Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, China
| | - Hao Wu
- School of Chemistry and Material Sciences, Hangzhou Institute of Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, China
| | - Lei Zhang
- School of Chemistry and Material Sciences, Hangzhou Institute of Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, China
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14
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Dostagir NMD, Tomuschat CR, Oshiro K, Gao M, Hasegawa JY, Fukuoka A, Shrotri A. Mitigating the Poisoning Effect of Formate during CO 2 Hydrogenation to Methanol over Co-Containing Dual-Atom Oxide Catalysts. JACS Au 2024; 4:1048-1058. [PMID: 38559712 PMCID: PMC10976564 DOI: 10.1021/jacsau.3c00789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 04/04/2024]
Abstract
During the hydrogenation of CO2 to methanol over mixed-oxide catalysts, the strong adsorption of CO2 and formate poses a barrier for H2 dissociation, limiting methanol selectivity and productivity. Here we show that by using Co-containing dual-atom oxide catalysts, the poisoning effect can be countered by separating the site for H2 dissociation and the adsorption of intermediates. We synthesized a Co- and In-doped ZrO2 catalyst (Co-In-ZrO2) containing atomically dispersed Co and In species. Catalyst characterization showed that Co and In atoms were atomically dispersed and were in proximity to each other owing to a random distribution. During the CO2 hydrogenation reaction, the Co atom was responsible for the adsorption of CO2 and formate species, while the nearby In atoms promoted the hydrogenation of adsorbed intermediates. The cooperative effect increased the methanol selectivity to 86% over the dual-atom catalyst, and methanol productivity increased 2-fold in comparison to single-atom catalysts. This cooperative effect was extended to Co-Zn and Co-Ga doped ZrO2 catalysts. This work presents a different approach to designing mixed-oxide catalysts for CO2 hydrogenation based on the preferential adsorption of substrates and intermediates instead of promoting H2 dissociation to mitigate the poisonous effects of substrates and intermediates.
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Affiliation(s)
- Nazmul
Hasan MD Dostagir
- Institute
for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
| | - Carlo Robert Tomuschat
- Institute
for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
- Department
of Chemistry, TUM School of Natural Sciences, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Kai Oshiro
- Graduate
School of Chemical Sciences and Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Min Gao
- Institute
for Chemical Reaction Design and Discovery, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
| | - Jun-ya Hasegawa
- Institute
for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
- Interdisciplinary
Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology, Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Atsushi Fukuoka
- Institute
for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
| | - Abhijit Shrotri
- Institute
for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
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15
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Gautam M, Nkurunziza F, Mulvehill MC, Uttarwar SS, Hofsommer DT, Grapperhaus CA, Spurgeon JM. Two-Membrane Dual Non-Aqueous/Aqueous Electrolyte Flow Cell Operation for Electrochemical Conversion of CO 2 to Methyl Formate. ChemSusChem 2024; 17:e202301337. [PMID: 37931228 DOI: 10.1002/cssc.202301337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/08/2023]
Abstract
Recently, tandem cathodic reactions have been demonstrated in non-aqueous solvents to couple CO2 reduction to a secondary reaction to create novel species that are not produced in aqueous CO2 electrolysis. One reaction that can be performed with high selectivity and durability is the electrochemical conversion of CO2 to formic acid and in-situ esterification with methanol to produce methyl formate. However, the translation to a high-performance flow electrolyzer is far from trivial, as the non-aqueous catholyte leads to reactor challenges including flooding the gas diffusion electrode. Here, a two-membrane flow electrolyzer with both anion and cation exchange membranes was used with flowing methanol catholyte and aqueous anolyte. This design prevented methanol from flooding the cathode, which was a pervasive limiting issue for electrolyzers with a single membrane. Methyl formate production at 42.9 % faradaic efficiency was achieved with pure methanol in a flow electrolyzer with stable performance beyond 80 min. However, low-water-content catholyte compositions also led to increased cell resistance and lower operating current densities. Thus, with the present ionomer materials there is a tradeoff between methyl formate selectivity and current density depending on water concentration, highlighting a need for new ionomers tailored for desirable non-aqueous solvents such as methanol.
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Affiliation(s)
- Manu Gautam
- Conn Center for Renewable Energy Research, University of Louisville, Louisville, Kentucky, 40292, USA
| | - Francois Nkurunziza
- Conn Center for Renewable Energy Research, University of Louisville, Louisville, Kentucky, 40292, USA
| | - Matthew C Mulvehill
- Conn Center for Renewable Energy Research, University of Louisville, Louisville, Kentucky, 40292, USA
| | - Sandesh S Uttarwar
- Conn Center for Renewable Energy Research, University of Louisville, Louisville, Kentucky, 40292, USA
| | - Dillon T Hofsommer
- Department of Chemistry, University of Louisville, 2320 South Brook Street, 40292, Louisville, Kentucky, USA
| | - Craig A Grapperhaus
- Department of Chemistry, University of Louisville, 2320 South Brook Street, 40292, Louisville, Kentucky, USA
| | - Joshua M Spurgeon
- Conn Center for Renewable Energy Research, University of Louisville, Louisville, Kentucky, 40292, USA
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16
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Chen J, Zhang D, Liu B, Zheng K, Li Y, Xu Y, Li Z, Liu X. Photoinduced Precise Synthesis of Diatomic Ir 1 Pd 1 -In 2 O 3 for CO 2 Hydrogenation to Methanol via Angstrom-Scale-Distance Dependent Synergistic Catalysis. Angew Chem Int Ed Engl 2024; 63:e202401168. [PMID: 38336924 DOI: 10.1002/anie.202401168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/12/2024]
Abstract
The atomically dispersed metal catalysts with full atomic utilization and well-defined site structure hold great promise for various catalytic reactions. However, the single metallic site limits the comprehensive reaction performance in most reactions. Here, we demonstrated a photo-induced neighbour-deposition strategy for the precise synthesis of diatomic Ir1 Pd1 on In2 O3 applied for CO2 hydrogenation to methanol. The proximity synergism between diatomic sites enabled a striking promotion in both CO2 conversion (10.5 %) and methanol selectivity (97 %) with good stability of 100 h run. It resulted in record-breaking space-time yield to methanol (187.1 gMeOH gmetal -1 hour-1 ). The promotional effect mainly originated from stronger CO2 adsorption on Ir site with assistance of H-spillover from Pd site, thus leading to a lower energy barrier for *HCOO pathway. It was confirmed that this synergistic effect strongly depended on the dual-site distance in an angstrom scale, which was attributed to weaker *H spillover and less electron transfer from Pd to Ir site as the Pd-to-Ir distance increased. The average dual-site distance was evaluated by our firstly proposed photoelectric model. Thus, this study introduced a pioneering strategy to precisely synthesize homonuclear/heteronuclear diatomic catalysts for facilitating the desired reaction route via diatomic synergistic catalysis.
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Affiliation(s)
- Jie Chen
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Dongjian Zhang
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Bing Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Ke Zheng
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Yufeng Li
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Yuebing Xu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Zaijun Li
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Xiaohao Liu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
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17
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Huang JR, Shi WX, Xu SY, Luo H, Zhang J, Lu TB, Zhang ZM. Water-Mediated Selectivity Control of CH 3 OH versus CO/CH 4 in CO 2 Photoreduction on Single-Atom Implanted Nanotube Arrays. Adv Mater 2024; 36:e2306906. [PMID: 37937695 DOI: 10.1002/adma.202306906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/29/2023] [Indexed: 11/09/2023]
Abstract
Controllable methanol production in artificial photosynthesis is highly desirable due to its high energy density and ease of storage. Herein, single atom Fe is implanted into TiO2 /SrTiO3 (TSr) nanotube arrays by two-step anodization and Sr-induced crystallization. The resulting Fe-TSr with both single Fe reduction centers and dominant oxidation facets (001) contributes to efficient CO2 photoreduction and water oxidation for controlled production of CH3 OH and CO/CH4 . The methanol yield can reach to 154.20 µmol gcat -1 h-1 with 98.90% selectivity by immersing all the catalyst in pure water, and the yield of CO/CH4 is 147.48 µmol gcat -1 h-1 with >99.99% selectivity when the catalyst completely outside water. This CH3 OH yield is 50 and 3 times higher than that of TiO2 and TSr and stands among all the state-of-the-art catalysts. The facile gas-solid and gas-liquid-solid phase switch can selectively control CH3 OH production from ≈0% (above H2 O) to 98.90% (in H2 O) via slowly immersing the catalyst into water, where abundant •OH and H2 O around Fe sites play important role in selective CH3 OH production. This work highlights a new insight for water-mediated CO2 photoreduction to controllably produce CH3 OH.
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Affiliation(s)
- Juan-Ru Huang
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
- School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Wen-Xiong Shi
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Shen-Yue Xu
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Hao Luo
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Jiangwei Zhang
- Science Center of Energy Material and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China
| | - Tong-Bu Lu
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Zhi-Ming Zhang
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
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18
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Wei J, Li Y, Liu Y, Liu S, Yang X, Wang X. Process Optimization for Production of Persimmon Wine with Lower Methanol. Foods 2024; 13:748. [PMID: 38472861 DOI: 10.3390/foods13050748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/19/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Persimmon wine has various nutritional elements and high commercial potential. However, the high content of methanol, which is derived from the fruit's pectin, always hinders persimmon wine production. To reduce the methanol level in the wine, the effects of persimmon cultivar, starter, pectinase, and pretreatment methods were investigated via single-factor and orthogonal experiments. The persimmon cultivar 'MaoKui' was finally used throughout the study owing to its lowest pectin concentration (24.5 g/kg). The best treatment conditions against the persimmon pulp were pectinase (0.04 g/kg) at 30 °C for 4 h, then boiled at 115 °C for 15 min before fermentation started. The optimized fermentation conditions for wine production were pectinase (0.03 g/kg), 250 mg/kg starter (BO213 and SPARK with equal amounts), at 28 °C for 6 d. The obtained wine had 77.7 mg/L methanol and a 68.4% raw juice yield. The fruit wine had 111.4 mg/L methanol and a 90.6 sensory evaluation score. Forty-nine volatile aromas were identified. Ethyl acetate content was the highest, followed by 3-methyl-1-butanol, 2,3-butanediol, and lactate ethyl ester. The persimmon wine had a unique style with transparent color, elegant aroma, and pure taste.
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Affiliation(s)
- Jinwen Wei
- College of Enology, Northwest A&F University, Xianyang 712100, China
| | - Yajun Li
- College of Enology, Northwest A&F University, Xianyang 712100, China
| | - Yijuan Liu
- College of Enology, Northwest A&F University, Xianyang 712100, China
| | - Silin Liu
- College of Enology, Northwest A&F University, Xianyang 712100, China
| | - Xiaobing Yang
- College of Enology, Northwest A&F University, Xianyang 712100, China
| | - Xue Wang
- College of Enology, Northwest A&F University, Xianyang 712100, China
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
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19
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Estrada-Osorio DV, Escalona-Villalpando RA, Gurrola MP, Chaparro-Sánchez R, Rodríguez-Morales JA, Arriaga LG, Ledesma-García J. Abiotic, Hybrid, and Biological Electrocatalytic Materials Applied in Microfluidic Fuel Cells: A Comprehensive Review. ACS Meas Sci Au 2024; 4:25-41. [PMID: 38404496 PMCID: PMC10885332 DOI: 10.1021/acsmeasuresciau.3c00044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 02/27/2024]
Abstract
This article provides an overview of the work reported in the past decade in the field of microfluidic fuel cells. To develop appropriate research, the most commonly used electrocatalytic materials were considered and a new classification was proposed based on their nature: abiotic, hybrid, or biological. This classification allowed the authors to discern the information collected. In this sense, the types of electrocatalysts used for the oxidation of the most common fuels in different environments, such as glucose, ethanol, methanol, glycerol, and lactate, were presented. There are several phenomena presented in this article. This information gives an overview of where research is heading in the field of materials for electrocatalysis, regardless of the fuel used in the microfluidic fuel cell: the synthesis of abiotic and biological materials to obtain hybrid materials that allow the use of the best properties of each material.
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Affiliation(s)
- D. V. Estrada-Osorio
- División
de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro, Santiago de Querétaro, Querétaro 76010, México
| | - Ricardo A. Escalona-Villalpando
- División
de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro, Santiago de Querétaro, Querétaro 76010, México
| | - M. P. Gurrola
- CONACYT-Tecnológico
Nacional de México/Instituto Tecnológico de Chetumal, Avenida Insurgentes 330, Chetumal, Quintana Roo 77013, México
- Tecnológico
Nacional de México/Instituto Tecnológico de Chetumal, Avenida Insurgentes 330, Chetumal, Quintana Roo 77013, México
| | - Ricardo Chaparro-Sánchez
- Facultad
de Informática, Universidad Autónoma
de Querétaro, Santiago de
Querétaro, Querétaro 76010, México
| | - J. A. Rodríguez-Morales
- División
de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro, Santiago de Querétaro, Querétaro 76010, México
| | - L. G. Arriaga
- Centro
de Investigación y Desarrollo Tecnológico en Electroquímica, Pedro Escobedo, Querétaro 76703, México
| | - J. Ledesma-García
- División
de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro, Santiago de Querétaro, Querétaro 76010, México
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20
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Oubraham A, Iordache M, Marin E, Sisu C, Borta S, Soare A, Capris C, Marinoiu A. Preparation of Copper-Based Catalysts for Obtaining Methanol by the Chemical Impregnation Method. Materials (Basel) 2024; 17:847. [PMID: 38399098 PMCID: PMC10890475 DOI: 10.3390/ma17040847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024]
Abstract
This paper presents the preparation of heterogeneous catalysts for the direct hydrogenation process of CO2 to methanol. The development of the modern chemical industry is inextricably linked to the use of catalytic processes. As a result, currently over 80% of new technologies introduced in the chemical industry incorporate catalytic processes. Since the basic factor of catalytic processes is the catalysts, the studies for the deepening of the knowledge regarding the nature of the action of the catalysts, for the development of new catalysts and catalytic systems, as well as for their improvement, represent a research priority of a fundamental or applied nature. The Cu/ZnO/Al2O3 catalyst for the synthesis of green methanol, using precursors of an inorganic (copper nitrate, denoted by Cu/ZnO/Al2O3-1) and organic (copper acetate, denoted by Cu/ZnO/Al2O3-2) nature, are obtained by chemical impregnation that includes two stages: preparation and one of calcination. The preparation methods and conditions, as well as the physico-chemical properties of the catalyst precursor, play a major role in the behavior of the catalysts. The prepared catalysts were characterized using atomic adsorption analysis, scanning electron microscopy (SEM) with energy dispersive X-ray (EDX) analysis, specific surface area and pore size analyses, adsorption, and the chemisorption of vapor (BET).
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Affiliation(s)
| | - Mihaela Iordache
- National Institute for Cryogenics and Isotopic Technologies—ICSI Ramnicu Valcea, Uzinei Str. No. 4, 240050 Ramnicu Valcea, Romania; (A.O.); (E.M.); (C.S.); (S.B.); (A.S.); (C.C.); (A.M.)
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21
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He P, Zhu H, Sun Q, Li M, Liu D, Li R, Lu X, Zhao W, Chi Y, Ren H, Guo W. Density Functional Theory Study of Methanol Steam Reforming on Pt 3Sn(111) and the Promotion Effect of a Surface Hydroxy Group. Nanomaterials (Basel) 2024; 14:318. [PMID: 38334589 PMCID: PMC10857296 DOI: 10.3390/nano14030318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 02/10/2024]
Abstract
Methanol steam reforming (MSR) is studied on a Pt3Sn surface using the density functional theory (DFT). An MSR network is mapped out, including several reaction pathways. The main pathway proposed is CH3OH + OH → CH3O → CH2O → CH2O + OH → CH2OOH → CHOOH → COOH → COOH + OH → CO2 + H2O. The adsorption strengths of CH3OH, CH2O, CHOOH, H2O and CO2 are relatively weak, while other intermediates are strongly adsorbed on Pt3Sn(111). H2O decomposition to OH is the rate-determining step on Pt3Sn(111). The promotion effect of the OH group is remarkable on the conversions of CH3OH, CH2O and trans-COOH. In particular, the activation barriers of the O-H bond cleavage (e.g., CH3OH → CH3O and trans-COOH → CO2) decrease substantially by ~1 eV because of the involvement of OH. Compared with the case of MSR on Pt(111), the generation of OH from H2O decomposition is more competitive on Pt3Sn(111), and the presence of abundant OH facilitates the combination of CO with OH to generate COOH, which accounts for the improved CO tolerance of the PtSn alloy over pure Pt.
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Affiliation(s)
- Ping He
- College of Science, China University of Petroleum (East China), Qingdao 266580, China;
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; (D.L.); (R.L.); (X.L.); (W.Z.); (Y.C.); (H.R.)
| | - Houyu Zhu
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; (D.L.); (R.L.); (X.L.); (W.Z.); (Y.C.); (H.R.)
| | - Qianyao Sun
- SINOPEC Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd., Dalian 116045, China; (Q.S.); (M.L.)
| | - Ming Li
- SINOPEC Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd., Dalian 116045, China; (Q.S.); (M.L.)
| | - Dongyuan Liu
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; (D.L.); (R.L.); (X.L.); (W.Z.); (Y.C.); (H.R.)
| | - Rui Li
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; (D.L.); (R.L.); (X.L.); (W.Z.); (Y.C.); (H.R.)
| | - Xiaoqing Lu
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; (D.L.); (R.L.); (X.L.); (W.Z.); (Y.C.); (H.R.)
| | - Wen Zhao
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; (D.L.); (R.L.); (X.L.); (W.Z.); (Y.C.); (H.R.)
| | - Yuhua Chi
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; (D.L.); (R.L.); (X.L.); (W.Z.); (Y.C.); (H.R.)
| | - Hao Ren
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; (D.L.); (R.L.); (X.L.); (W.Z.); (Y.C.); (H.R.)
| | - Wenyue Guo
- College of Science, China University of Petroleum (East China), Qingdao 266580, China;
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; (D.L.); (R.L.); (X.L.); (W.Z.); (Y.C.); (H.R.)
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22
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Said HH, Doucette AA. Enhanced Electrophoretic Depletion of Sodium Dodecyl Sulfate with Methanol for Membrane Proteome Analysis by Mass Spectrometry. Proteomes 2024; 12:5. [PMID: 38390965 PMCID: PMC10885059 DOI: 10.3390/proteomes12010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/24/2024] Open
Abstract
Membrane proteins are underrepresented during proteome characterizations, primarily owing to their lower solubility. Sodium dodecyl sulfate (SDS) is favored to enhance protein solubility but interferes with downstream analysis by mass spectrometry. Here, we present an improved workflow for SDS depletion using transmembrane electrophoresis (TME) while retaining a higher recovery of membrane proteins. Though higher levels of organic solvent lower proteome solubility, we found that the inclusion of 40% methanol provided optimal solubility of membrane proteins, with 86% recovery relative to extraction with SDS. Incorporating 40% methanol during the electrophoretic depletion of SDS by TME also maximized membrane protein recovery. We further report that methanol accelerates the rate of detergent removal, allowing TME to deplete SDS below 100 ppm in under 3 min. This is attributed to a three-fold elevation in the critical micelle concentration (CMC) of SDS in the presence of methanol, combined with a reduction in the SDS to protein binding ratio in methanol (0.3 g SDS/g protein). MS analysis of membrane proteins isolated from the methanol-assisted workflow revealed enhanced proteome detection, particularly for proteins whose pI contributed a minimal net charge and therefore possessed reduced solubility in a purely aqueous solvent. This protocol presents a robust approach for the preparation of membrane proteins by maximizing their solubility in MS-compatible solvents, offering a tool to advance membrane proteome characterization.
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Affiliation(s)
- Hammam H Said
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, NS B3H 4R2, Canada
| | - Alan A Doucette
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, NS B3H 4R2, Canada
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23
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Leonard JB, Minhaj FS, Erickson K, King J. Fomepizole use reported to United States Poison Centers from 2010 to 2021. Clin Toxicol (Phila) 2024; 62:120-125. [PMID: 38465690 DOI: 10.1080/15563650.2024.2319863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 02/09/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND The diagnosis of toxic alcohol poisoning is often based on clinical presentation and nonspecific surrogate laboratory studies due to limited testing availability. Fomepizole is the recommended antidote and often administered empirically. The objective of this study is to identify substances that mimic toxic alcohols and compare key clinical factors between toxic alcohol and non-toxic alcohol exposures when fomepizole was administered. METHODS This study was a retrospective evaluation using the National Poison Data System from January 1, 2010 through December 31, 2021. Exposures were included if fomepizole was administered. Toxic alcohol exposures had ethylene glycol or methanol as a coded substance. For exposures not coded as a toxic alcohol, the first substance was described. Paracetamol (acetaminophen) exposures from 2020 and 2021 were excluded. RESULTS Fomepizole was reportedly used 25,110 times over 12 years. Use increased from 1,955 in 2010 to 2,710 in 2021. Most administrations were for reported toxic alcohol poisoning (60 percent) but use in reported non-toxic alcohol poisoning was greater starting in 2020. Toxic alcohol exposures were older (43.3 versus 39.8 years; P < 0.001) and more likely male (65.7 percent versus 58.2 percent). Level of care was mostly a critical care unit (67.7 percent), which was less common in toxic alcohol (63.3 percent) than non-toxic alcohol exposures (74.2 percent). The most common non-toxic alcohol substances were ethanol (24.9 percent) or an unknown drug (17.5 percent). Acidosis, increased creatinine concentration, anion gap, and osmolal gap, and kidney failure were coded in a lower proportion of toxic alcohol exposures than non-toxic alcohol exposures (P < 0.001). DISCUSSION The inability to provide rapid clinical confirmation of toxic alcohol poisoning results in the empiric administration of fomepizole to many patients who will ultimately have other diagnoses. Although fomepizole is relative well tolerated we estimated that this practice costs between $1.5 to $2.5 million. The major limitations of this work include the biases associated with retrospective record review, and the inability to confirm the exposures which may have resulted in allocation error. CONCLUSION Most fomepizole use was for a presumed toxic alcohol. This recently shifted to greater use in likely non-toxic alcohol poisoning. Key difference between the groups suggest fomepizole administration was likely due to the difficulty in diagnosis of toxic alcohol poisoning along with the efficacy and safety of fomepizole. Increased toxic alcohol laboratory testing availability could improve timely diagnosis, reserving fomepizole use for toxic alcohol poisoning.
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Affiliation(s)
- James B Leonard
- Maryland Poison Center, Department of Practice, Sciences, and Health Outcomes Research, University of Maryland School of Pharmacy, Baltimore, MD, USA
| | | | - Kennedy Erickson
- Washington State University College of Pharmacy and Pharmaceutical Sciences, Spokane, WA, USA
| | - Joshua King
- Maryland Poison Center, Department of Practice, Sciences, and Health Outcomes Research, University of Maryland School of Pharmacy, Baltimore, MD, USA
- University of Maryland School of Medicine, Baltimore, MD, USA
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24
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Feng G, Mao J, Sun T, Li G, Li S, Dong X, Song Y, Wei W, Chen W. Nitrogen-Doped Titanium Dioxide for Selective Photocatalytic Oxidation of Methane to Oxygenates. ACS Appl Mater Interfaces 2024; 16:4600-4605. [PMID: 38242173 DOI: 10.1021/acsami.3c15614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2024]
Abstract
Photocatalytic conversion of methane (CH4) to value-added chemicals using H2O as the oxidant under mild conditions is a desired sustainable pathway for synthesizing commodity chemicals. However, controlling product selectivity while maintaining high product yields is greatly challenging. Herein, we develop a highly efficient strategy, based on the precise control of the types of nitrogen dopants, and the design of photocatalysts, to achieve high selectivity and productivity of oxygenates via CH4 photocatalytic conversion. The primary product (methanol) is obtained in a high yield of 159.8 μmol·g-1·h-1 and 47.7% selectivity, and the selectivity of oxygenate compounds reached 92.5%. The unique hollow porous structure and substituted nitrogen sites of nitrogen-doped TiO2 synergistically promote its photo-oxidation performance. Furthermore, in situ attenuated total reflectance Fourier transform infrared spectroscopy provides direct evidence of the key intermediates and their evolution for producing methanol and multicarbon oxygenates. This study provides insights into the mechanism of photocatalytic CH4 conversion.
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Affiliation(s)
- Guanghui Feng
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Jianing Mao
- University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Tong Sun
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Guihua Li
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Shoujie Li
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Xiao Dong
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Yanfang Song
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Wei
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Chen
- Low-Carbon Conversion Science and Engineering Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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25
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Roy D, Charan Mandal S, Das A, Pathak B. Unravelling CO 2 Reduction Reaction Intermediates on High Entropy Alloy Catalysts: An Interpretable Machine Learning Approach to Establish Scaling Relations. Chemistry 2024; 30:e202302679. [PMID: 37966848 DOI: 10.1002/chem.202302679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/30/2023] [Accepted: 11/15/2023] [Indexed: 11/16/2023]
Abstract
Establishment of a scaling relation among the reaction intermediates is highly important but very much challenging on complex surfaces, such as surfaces of high entropy alloys (HEAs). Herein, we designed an interpretable machine learning (ML) approach to establish a scaling relation among CO2 reduction reaction (CO2 RR) intermediates adsorbed at the same adsorption site. Local Interpretable Model-Agnostic Explanations (LIME), Accumulated Local Effects (ALE), and Permutation Feature Importance (PFI) are used for the global and local interpretation of the utilized black box models. These methods were successfully applied through an iterative way and validated on CuCoNiZnMg and CuCoNiZnSnbased HEAs data. Finally, we successfully predicted adsorption energies of *H2 CO (MAE: 0.24 eV) and *H3 CO (MAE: 0.23 eV) by using the *HCO training data. Similarly, adsorption energy of *O (MAE: 0.32 eV) is also predicted from *H training data. We believe that our proposed method can shift the paradigm of state-of-the-art ML in catalysis towards better interpretability.
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Affiliation(s)
- Diptendu Roy
- Department of Chemistry, Indian Institute of Technology Indore, Indore, 453552, India
| | - Shyama Charan Mandal
- Department of Chemistry, Indian Institute of Technology Indore, Indore, 453552, India
- Present address: SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, CA 94305, USA
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
| | - Amitabha Das
- Department of Chemistry, Indian Institute of Technology Indore, Indore, 453552, India
| | - Biswarup Pathak
- Department of Chemistry, Indian Institute of Technology Indore, Indore, 453552, India
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26
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Fernández-Villanueva E, Lustemberg PG, Zhao M, Soriano Rodriguez J, Concepción P, Ganduglia-Pirovano MV. Water and Cu + Synergy in Selective CO 2 Hydrogenation to Methanol over Cu-MgO-Al 2O 3 Catalysts. J Am Chem Soc 2024; 146:2024-2032. [PMID: 38206050 DOI: 10.1021/jacs.3c10685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
The CO2 hydrogenation reaction to produce methanol holds great significance as it contributes to achieving a CO2-neutral economy. Previous research identified isolated Cu+ species doping the oxide surface of a Cu-MgO-Al2O3-mixed oxide derived from a hydrotalcite precursor as the active site in CO2 hydrogenation, stabilizing monodentate formate species as a crucial intermediate in methanol synthesis. In this work, we present a molecular-level understanding of how surface water and hydroxyl groups play a crucial role in facilitating spontaneous CO2 activation at Cu+ sites and the formation of monodentate formate species. Computational evidence has been experimentally validated by comparing the catalytic performance of the Cu-MgO-Al2O3 catalyst with hydroxyl groups against that of its hydrophobic counterpart, where hydroxyl groups are blocked using an esterification method. Our work highlights the synergistic effect between doped Cu+ ions and adjacent hydroxyl groups, both of which serve as key parameters in regulating methanol production via CO2 hydrogenation. By elucidating the specific roles of these components, we contribute to advancing our understanding of the underlying mechanisms and provide valuable insights for optimizing methanol synthesis processes.
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Affiliation(s)
- Estefanía Fernández-Villanueva
- Universitat Politècnica de València (UPV), Camè de Vera s/n, Valencia 46022, Spain
- Instituto de Catálisis y Petroleoquímica - Consejo Superior de Investigaciones Científicas (ICP - CSIC), Calle de Marie Curie 2, Madrid 28049, Spain
| | - Pablo G Lustemberg
- Instituto de Catálisis y Petroleoquímica - Consejo Superior de Investigaciones Científicas (ICP - CSIC), Calle de Marie Curie 2, Madrid 28049, Spain
| | - Minjie Zhao
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, Valencia, Valencia 46022, Spain
| | - Jose Soriano Rodriguez
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, Valencia, Valencia 46022, Spain
| | - Patricia Concepción
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, Valencia, Valencia 46022, Spain
| | - M Verónica Ganduglia-Pirovano
- Instituto de Catálisis y Petroleoquímica - Consejo Superior de Investigaciones Científicas (ICP - CSIC), Calle de Marie Curie 2, Madrid 28049, Spain
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27
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Saidi M, Bihl F, Gimello O, Louis B, Roger AC, Trens P, Salles F. Evaluation of the Hydrophilic/Hydrophobic Balance of 13X Zeolite by Adsorption of Water, Methanol, and Cyclohexane as Pure Vapors or as Mixtures. Nanomaterials (Basel) 2024; 14:213. [PMID: 38251176 PMCID: PMC10819054 DOI: 10.3390/nano14020213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/13/2024] [Accepted: 01/14/2024] [Indexed: 01/23/2024]
Abstract
Adsorption isotherms of pure vapors and vapor mixtures of water, methanol, and cyclohexane were studied using a synthesized 13X zeolite (FAU topology), by means of a DVS gravimetric vapor analyzer. These results were validated by GCMC calculations. The surface chemistry of the adsorbent was characterized by the thermodesorption of ammonia, and its textural properties were studied using nitrogen physisorption. The 13X zeolite was found to be strongly acidic (BrØnsted acid sites, Si/Al = 1.3) and its specific surface area around 1100 m2·g-1. Water was found to be able to diffuse within both the supercages and the sodalite cavities of the FAU structure, whereas methanol and cyclohexane were confined in the supercages only. The water/methanol sorption selectivity of the 13X zeolite was demonstrated by co-adsorption measurements. The composition of the water/methanol adsorbed phase could be calculated by assuming IAST hypotheses. This model failed in the case of the water/cyclohexane co-adsorption system, which is in line with the non-miscibility of the components in the adsorbed state. The sorption isotherms could be successfully simulated, confirming the robustness of the forcefields used. The 13X zeolite confirmed its a priori expected hydrophilic nature, which is useful for the selective adsorption of water in a methanol-water vapor mixture.
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Affiliation(s)
- Meryem Saidi
- ICGM, Université de Montpellier, CNRS, ENSCM, 34090 Montpellier, France; (M.S.); (O.G.); (P.T.)
| | - François Bihl
- ICPEES, UMR 7515, Université de Strasbourg, CNRS, 25 Rue Becquerel, 67087 Strasbourg, France; (F.B.); (B.L.); (A.-C.R.)
| | - Olinda Gimello
- ICGM, Université de Montpellier, CNRS, ENSCM, 34090 Montpellier, France; (M.S.); (O.G.); (P.T.)
| | - Benoit Louis
- ICPEES, UMR 7515, Université de Strasbourg, CNRS, 25 Rue Becquerel, 67087 Strasbourg, France; (F.B.); (B.L.); (A.-C.R.)
| | - Anne-Cécile Roger
- ICPEES, UMR 7515, Université de Strasbourg, CNRS, 25 Rue Becquerel, 67087 Strasbourg, France; (F.B.); (B.L.); (A.-C.R.)
| | - Philippe Trens
- ICGM, Université de Montpellier, CNRS, ENSCM, 34090 Montpellier, France; (M.S.); (O.G.); (P.T.)
| | - Fabrice Salles
- ICGM, Université de Montpellier, CNRS, ENSCM, 34090 Montpellier, France; (M.S.); (O.G.); (P.T.)
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Sheshukova EV, Kamarova KA, Ershova NM, Komarova TV. Nicotiana benthamiana Methanol-Inducible Gene (MIG) 21 Encodes a Nucleolus-Localized Protein That Stimulates Viral Intercellular Transport and Downregulates Nuclear Import. Plants (Basel) 2024; 13:279. [PMID: 38256832 PMCID: PMC10819229 DOI: 10.3390/plants13020279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/04/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024]
Abstract
The mechanical damage of plant tissues leads to the activation of methanol production and its release into the atmosphere. The gaseous methanol or vapors emitted by the damaged plant induce resistance in neighboring intact plants to bacterial pathogens but create favorable conditions for viral infection spread. Among the Nicotiana benthamiana methanol-inducible genes (MIGs), most are associated with plant defense and intercellular transport. Here, we characterize NbMIG21, which encodes a 209 aa protein (NbMIG21p) that does not share any homology with annotated proteins. NbMIG21p was demonstrated to contain a nucleolus localization signal (NoLS). Colocalization studies with fibrillarin and coilin, nucleolus and Cajal body marker proteins, revealed that NbMIG21p is distributed among these subnuclear structures. Our results show that recombinant NbMIG21 possesses DNA-binding properties. Similar to a gaseous methanol effect, an increased NbMIG21 expression leads to downregulation of the nuclear import of proteins with nuclear localization signals (NLSs), as was demonstrated with the GFP-NLS model protein. Moreover, upregulated NbMIG21 expression facilitates tobacco mosaic virus (TMV) intercellular transport and reproduction. We identified an NbMIG21 promoter (PrMIG21) and showed that it is methanol sensitive; thus, the induction of NbMIG21 mRNA accumulation occurs at the level of transcription. Our findings suggest that methanol-activated NbMIG21 might participate in creating favorable conditions for viral reproduction and spread.
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Affiliation(s)
- Ekaterina V. Sheshukova
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia; (E.V.S.); (K.A.K.); (N.M.E.)
| | - Kamila A. Kamarova
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia; (E.V.S.); (K.A.K.); (N.M.E.)
| | - Natalia M. Ershova
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia; (E.V.S.); (K.A.K.); (N.M.E.)
| | - Tatiana V. Komarova
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia; (E.V.S.); (K.A.K.); (N.M.E.)
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
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29
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Hongo T, Yumoto T, Kosaki Y, Hiraoka T, Tsukahara K, Nojima T, Obara T, Ageta K, Yamasaki Y, Taniguchi K, Miura M, Miyaishi S, Naito H, Nakao A. Successful Cardiac, Lung, and Kidney Transplantation from a Methanol-poisoned Donor. JMA J 2024; 7:133-135. [PMID: 38314411 PMCID: PMC10834169 DOI: 10.31662/jmaj.2023-0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 10/24/2023] [Indexed: 02/06/2024] Open
Abstract
Massive methanol exposure can lead to severe and detrimental effects that can result in death or brain death. As organs from patients with brain death after methanol ingestion are less likely to be recovered, these patients have been considered marginal donors. We present a case of successful multiple organ transplantation (heart, lungs, and kidneys) from a methanol-poisoned patient. Our experience illustrates that donor death from methanol intoxication does not preclude organ transplantation.
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Affiliation(s)
- Takashi Hongo
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Tetsuya Yumoto
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Yoshinori Kosaki
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Tomohiro Hiraoka
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Kohei Tsukahara
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Tsuyoshi Nojima
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Takafumi Obara
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Kohei Ageta
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Yukie Yamasaki
- Department of Legal Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Kaori Taniguchi
- Department of Legal Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Masanobu Miura
- Department of Legal Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
- Department of Legal Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Satoru Miyaishi
- Department of Legal Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Hiromichi Naito
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Atsunori Nakao
- Department of Emergency, Critical Care, and Disaster Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Akram HM, Haleem AM, Salah R. Antioxidant and Antineoplastic Activities of Hibiscus sabdariffa Linn. Petal Extracts against Oral Squamous Cell Carcinoma Cell Line. Oral Health Prev Dent 2024; 22:131-138. [PMID: 38376437 DOI: 10.3290/j.ohpd.b4997059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
PURPOSE To assess the antioxidant and antineoplastic effects of Hibiscus sabdariffa Linn. on oral squamous cell carcinoma cells. MATERIALS AND METHODS Human squamous cell carcinoma HSCC cells were tested for cytotoxicity by a methanol extract of Hibiscus sabdariffa (MEHSP). After 24, 48, and 72 h, the MTT assay and Trypan blue exclusion test were used to determine cell survival and death. 2, 2-diphenyl-1-picrylhydrazyl (DPPH), DNA Protection Assay (DPA), and ferric reducing antioxidant power assay (FRAPA) measured the antioxidant activity of MEHSP. RESULTS The antioxidant activity (%) ranged from 47.92-82.24 in the DPPH test, 11.61-73.65 in the DPA, and 4.97-52.09 in the FRAPA. The HSCC in-vitro cytotoxicity assay showed dose- and time-dependent cell viability. MEHSP at 5 μg/ml inhibited viable cells, while increasing MEHSP doses decreased cell viability. The Trypan blue exclusion test showed that MEHSP significantly reduced cell viability at 24, 48, and 72 h. CONCLUSION Hibiscus sabdariffa contains antioxidant and HSCC-cytotoxic properties.
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Xue M, Pan T, Shao Z, Wang W, Li H, Zhao L, Zhou X, Zhang Y. Sustainable Electrochemical Benzylic C-H Oxidation Using MeOH as an Oxygen Source. ChemSusChem 2024:e202400028. [PMID: 38225209 DOI: 10.1002/cssc.202400028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
New methods and strategies for the direct oxidation of benzylic C-H bonds are highly desirable, owing to the importance of ketone motifs in significant organic transformations and the synthesis of valuable molecules, including pharmaceuticals, pesticides, and fine chemicals. Herein, we describe an electrochemical benzylic C-H oxidation strategy for the synthesis of ketones using MeOH as an oxygen source. Inexpensive and safe KBr serves as both an electrolyte and a bromide radical precursor in the reaction. This transformation also offers several advantages such as mild conditions, broad functional group tolerance, and operational simplicity. Mechanistic investigations by control experiments, radical scavenging experiments, electron paramagnetic resonance (EPR), kinetic studies, cyclic voltammetry (CV), and in-situ Fourier transform infrared (FTIR) spectroscopy support a pathway involving the formation and transformation of benzyl methyl ether via hydrogen atom transfer (HAT) and single-electron transfer (SET). The practical application of our strategy is highlighted by the successful synthesis of five pharmaceuticals, namely lenperone, melperone, diphenhydramine, cinnarizine, and flunarizine.
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Affiliation(s)
- Meng Xue
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Tao Pan
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Zhichao Shao
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Wenxuan Wang
- School of Ecology and Environment, Ningxia University, 489 Helan Mountain West Road, Yinchuan, 750021, China
| | - Hu Li
- School of Ecology and Environment, Ningxia University, 489 Helan Mountain West Road, Yinchuan, 750021, China
| | - Lixing Zhao
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Xin Zhou
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Yuexia Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
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Müller M, Mishra RK, Šleger V, Pexa M, Čedík J. Elastomer-Based Sealing O-Rings and Their Compatibility with Methanol, Ethanol, and Hydrotreated Vegetable Oil for Fueling Internal Combustion Engines. Materials (Basel) 2024; 17:430. [PMID: 38255598 PMCID: PMC10817555 DOI: 10.3390/ma17020430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/09/2024] [Accepted: 01/14/2024] [Indexed: 01/24/2024]
Abstract
Green methanol, ethanol, and diesel-based hydrotreated vegetable oils are some of the renewable liquid fuels that show satisfactory performance in diesel engines. A notable advantage of these fuels is that they are renewable and do not require significant modifications in the existing engines for successful operation. Suitable fuel systems, especially their material compatibility, remain unresolved, and therefore, it is a weak link in their large-scale adaptation. Elastomer-based sealing O-rings lose their mechanical properties after a short exposure time to these fuels, adversely impacting their functionality. This research study evaluated the long-term material compatibility of different elastomer-based sealing materials by immersing the O-rings in these test fuels (hydrotreated vegetable oil, methanol, ethanol, and diesel) for different time intervals (i.e., up to 15 months). The material compatibility was assessed mainly by investigating these changes in various mechanical properties of these O-rings, namely tensile strength (ΔTs), elongation at break (ΔEb), Shore A hardness (ΔH), and mass (ΔM). The degradation of mechanical properties was studied and analyzed during the immersion interval from 0.9 to 15.2 months and compared with O-rings kept in a normal atmosphere. It was noted that individual fuels affect various mechanical properties significantly. In a short interval of 0.9 months (28 days), significant changes in the mechanical properties of the sealing O-rings were observed.
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Affiliation(s)
| | - Rajesh Kumar Mishra
- Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 165 00 Prague, Czech Republic; (M.M.); (V.Š.); (M.P.); (J.Č.)
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Nunes N, Elvas-Leitão R, Martins F. Study of the Ternary Mixture of Methanol/Formamide/Acetonitrile via Solvatochromic Probes. Molecules 2024; 29:246. [PMID: 38202829 PMCID: PMC10780662 DOI: 10.3390/molecules29010246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Following previous studies, the ternary mixture of methanol/formamide/acetonitrile (MeOH/Formamide/MeCN) was studied using the UV-Vis absorption spectra at 298.15 K with a set of five probes, 4-nitroaniline, 4-nitroanisole, 4-nitrophenol, N,N-dimethyl-4-nitroaniline and 2,6-diphenyl-4-(2,4,6-triphenyl-1-pyridinio)phenolate (Reichardt betaine dye), for a total of 22 mole ternary fractions. In addition, nine mole fractions of the underling binary mixtures, MeOH/Formamide and Formamide/MeCN were also tested. Spectroscopic results were used to model the preferential solvation order for each probe in the mixtures. The Kamlet-Taft solvatochromic solvent parameters, α, β, and π*, were also computed through the use of the solvatochromic shifts of the five probe indicators. Moreover, discrepancies in the spectroscopic behavior of 4-nitrophenol in formamide-rich mixtures were observed and analyzed.
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Affiliation(s)
- Nelson Nunes
- Departamento de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro, 1959-007 Lisboa, Portugal;
- Centro de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal
| | - Ruben Elvas-Leitão
- Departamento de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro, 1959-007 Lisboa, Portugal;
- Centro de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal
| | - Filomena Martins
- Centro de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal
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Alrobaian M, Alkhuraiji A, Almohanna R, Alshehri M, Alyahya B. Visual outcome of methanol toxic optic neuropathy after erythropoietin treatment in Riyadh, Saudi Arabia. Saudi J Ophthalmol 2024; 38:41-46. [PMID: 38628402 PMCID: PMC11017006 DOI: 10.4103/sjopt.sjopt_174_22] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 01/29/2023] [Accepted: 03/07/2023] [Indexed: 04/19/2024] Open
Abstract
PURPOSE The purpose of this study is to evaluate the visual response of methanol-induced optic neuropathy to management with erythropoietin (EPO) along with conventional therapy. METHODS This retrospective case series examines the ophthalmological data of patients diagnosed with methanol-induced optic neuropathy between 2020 and 2021 at two centers, Riyadh, Saudi Arabia. Patients' characteristics and the results of initial and final ophthalmological examinations were documented and compared between patients who received EPO in addition to conventional management and those who received only conventional management. RESULTS A total of nine cases were reviewed, of which eight (88.9%) were males and one was female (11.1%). The mean age was 37.7 years. At presentation, funduscopic examination revealed optic disc edema in four eyes (two patients), and 14 eyes had normal appearance (seven patients). Among the nine patients who received conventional management, 5 (55.6%) additionally received intravenous EPO during the treatment course. There was no clinically or statistically significant difference in terms of visual outcome between the two groups. The mean visual acuity at the final presentation was 1.32 ± 0.79 logarithm of the minimum angle of resolution (LogMAR) in the EPO group and 1.36 ± 0.85 LogMAR in the non-EPO group. Optical coherence tomography indicated that the EPO group had an average retinal nerve fiber layer thickness of 48.13μm (±6.2), at the final assessment. CONCLUSION Managing the visual impairments in individuals with methanol-induced optic neuropathy using intravenous EPO resulted in similar final visual outcomes compared to conventional management.
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Affiliation(s)
- Malek Alrobaian
- Department of Ophthalmology, Ministry of the National Guard – Health Affairs, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Arwa Alkhuraiji
- Department of Ophthalmology, Ministry of the National Guard – Health Affairs, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Rema Almohanna
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Department of Surgery, Ministry of the National Guard – Health Affairs, Riyadh, Saudi Arabia
| | - Mohammed Alshehri
- Department of Emergency Medicine, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - Bader Alyahya
- Department of Emergency Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Wei S, Wang H, Fan M, Cai X, Hu J, Zhang R, Song B, Li J. Application of adaptive laboratory evolution to improve the tolerance of Rhodotorula strain to methanol in crude glycerol and development of an effective method for cell lysis. Biotechnol J 2024; 19:e2300483. [PMID: 38041508 DOI: 10.1002/biot.202300483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/03/2023]
Abstract
Rhodotorula toruloides can utilize crude glycerol as the low-cost carbon source for lipid production, but its growth is subjected to inhibition by methanol in crude glycerol. Here, transcriptome profiling demonstrated that 1004 genes were significantly regulated in the strain R. toruloides TO2 under methanol stress. Methanol impaired the function of membrane transport and subsequently weakened the utilization of glycerol, activities of the primary metabolism and functions of nucleus and ribosome. Afterwards the tolerance of TO2 to methanol was improved by using two-round adaptive laboratory evolution (ALE). The final strain M2-ale had tolerance up to 3.5% of methanol. 1 H NMR-based metabolome analysis indicated that ALE not only improved the tolerance of M2-ale to methanol but also tuned the carbon flux towards the biosynthesis of glycerolipid-related metabolites. The biomass and lipid titer of M2-ale reached 14.63 ± 0.45 g L-1 and 7.06 ± 0.44 g L-1 at 96 h in the crude glycerol medium, which increased up to 17.69% and 31.39%, respectively, comparing with TO2. Afterwards, an effective method for cell lysis was developed by combining sonication and enzymatic hydrolysis (So-EnH). The lytic effect of So-EnH was validated by using confocal imaging and flow cytometry. At last, lipid recovery rate reached 95.4 ± 2.7% at the optimized condition.
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Affiliation(s)
- Shiyu Wei
- Key Laboratory of Metabolic Engineering and Biosynthesis Technology, Ministry of Industry and Information Technology, Nanjing University of Science and Technology, Nanjing, China
| | - Hongyang Wang
- Key Laboratory of Metabolic Engineering and Biosynthesis Technology, Ministry of Industry and Information Technology, Nanjing University of Science and Technology, Nanjing, China
| | - Meixi Fan
- Key Laboratory of Metabolic Engineering and Biosynthesis Technology, Ministry of Industry and Information Technology, Nanjing University of Science and Technology, Nanjing, China
| | - Xinrui Cai
- Key Laboratory of Metabolic Engineering and Biosynthesis Technology, Ministry of Industry and Information Technology, Nanjing University of Science and Technology, Nanjing, China
| | - Junpeng Hu
- Key Laboratory of Metabolic Engineering and Biosynthesis Technology, Ministry of Industry and Information Technology, Nanjing University of Science and Technology, Nanjing, China
| | - Ruixin Zhang
- Key Laboratory of Metabolic Engineering and Biosynthesis Technology, Ministry of Industry and Information Technology, Nanjing University of Science and Technology, Nanjing, China
| | - Baocai Song
- Key Laboratory of Metabolic Engineering and Biosynthesis Technology, Ministry of Industry and Information Technology, Nanjing University of Science and Technology, Nanjing, China
| | - Jing Li
- Key Laboratory of Metabolic Engineering and Biosynthesis Technology, Ministry of Industry and Information Technology, Nanjing University of Science and Technology, Nanjing, China
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
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Sheng Z, Zhou H, Zhang Y, Li J, Wang L. Sheet-Like Morphology CuO/Co 3O 4 Nanocomposites for Enhanced Catalysis in Hydrogenation of CO 2 to Methanol. Nanomaterials (Basel) 2023; 13:3153. [PMID: 38133050 PMCID: PMC10745419 DOI: 10.3390/nano13243153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023]
Abstract
The selective hydrogenation of CO2 into high-value chemicals is an effective approach to address environmental issues. Cobalt-based catalysts have significant potential in CO2 hydrogenation reaction systems; however, there is a need to control their selectivity better. In this study, copper is introduced onto Co3O4 nanosheets using the ion exchange reverse loading method. The unique interaction of these materials significantly alters the selectivity of the cobalt-based catalyst. Results from scanning transmission electron microscopy and scanning electron microscopy indicate that this catalyst enables a more even dispersion of copper species in the Co3O4 nanosheets. Temperature-programmed reduction and X-ray photoelectron spectroscopy reveal that the catalyst facilitates the metal-metal interaction between Co and Cu. Temperature-programmed desorption experiments for CO2 and H2 demonstrate that the close interaction between Co and Cu modifies CO2 adsorption, leading to differences in catalytic activity. Moreover, the catalyst effectively suppresses CO2 methanation and promotes methanol formation by altering the alkalinity of the catalyst surface and weakening the hydrogen dissociation ability.
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Affiliation(s)
| | | | | | - Jinlin Li
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan 430074, China
| | - Li Wang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan 430074, China
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Liu L, Mezari B, Kosinov N, Hensen EJM. Al Promotion of In 2O 3 for CO 2 Hydrogenation to Methanol. ACS Catal 2023; 13:15730-15745. [PMID: 38125979 PMCID: PMC10728901 DOI: 10.1021/acscatal.3c04620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/06/2023] [Accepted: 11/06/2023] [Indexed: 12/23/2023]
Abstract
In2O3 is a promising catalyst for the hydrogenation of CO2 to methanol, relevant to renewable energy storage in chemicals. Herein, we investigated the promoting role of Al on In2O3 using flame spray pyrolysis to prepare a series of In2O3-Al2O3 samples in a single step (0-20 mol % Al). Al promoted the methanol yield, with an optimum being observed at an Al content of 5 mol %. Extensive characterization showed that Al can dope into the In2O3 lattice (maximum ∼ 1.2 mol %), leading to the formation of more oxygen vacancies involved in CO2 adsorption and methanol formation. The rest of Al is present as small Al2O3 domains at the In2O3 surface, blocking the active sites for CO2 hydrogenation and contributing to higher CO selectivity. At higher Al content (≥10 mol % Al), the particle size of In2O3 decreases due to the stabilizing effect of Al2O3. Nevertheless, these smaller particles are prone to sintering during CO2 hydrogenation since they appear to be more easily reduced. These findings show subtle effects of a structural promoter such as Al on the reducibility and texture of In2O3 as a CO2 hydrogenation catalyst.
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Affiliation(s)
- Liang Liu
- Laboratory of Inorganic Materials
and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Brahim Mezari
- Laboratory of Inorganic Materials
and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Nikolay Kosinov
- Laboratory of Inorganic Materials
and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Emiel J. M. Hensen
- Laboratory of Inorganic Materials
and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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Sener K, Cakır A, Altug E, Korkut S, Güven R, Kapci M. Is optic nerve sheath diameter diagnostic in methanol intoxication? Alcohol 2023; 113:27-31. [PMID: 37481045 DOI: 10.1016/j.alcohol.2023.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 06/04/2023] [Accepted: 06/29/2023] [Indexed: 07/24/2023]
Abstract
BACKGROUND AND AIM Methyl alcohol intoxication causes severe morbidity and mortality, especially in developing countries. Formic acid is formed as a result of methanol metabolism. Formic acid accumulation and inhibition of adenosine triphosphate synthesis result in ophthalmic issues. This study aimed to demonstrate that the optic nerve sheath diameter (ONSD) measurement is an accurate prognostic marker and can be helpful in the diagnosis of methanol intoxication. MATERIALS AND METHODS This prospective study was conducted with 52 patients who were admitted to the emergency department after alcohol consumption and agreed to participate in the study. Age, gender, comorbid diseases, vital signs, ONSD ultrasonography measurements, hospitalization and discharge status, in-hospital mortality status, dialysis need, presence of visual impairment, blood gas parameters, respiratory status, time since alcohol intake, ethanol levels, urea levels, and creatinine levels were analyzed. RESULTS ROC curve analysis was performed to evaluate the predictive power of ONSD to diagnose methanol intoxication. The area under the curve was 0.857 for the cut-off value of 5.05 mm (95 % CI: 0.728-0.985; p < 0.001), with a sensitivity of 80.8 % and a specificity of 100 %. In the regression analysis performed to determine the prognostic value of the parameters in estimating mortality in methanol intoxication cases, an increase in ONSD (OR: 3.619; 95 % CI: 0.057-0.199; p = 0.001), an increase in lactate levels (OR: 5.653; 95 % CI: 0.040-0.085; p < 0.001), and increased duration after alcohol intake (OR: 2558; 95 % CI: 0.004-0.034; p = 0.014) were identified as independent predictors of mortality, but pH, HCO3, and base deficit levels were not significant predictors. CONCLUSIONS We believe that ONSD can be helpful for the differential diagnosis and prognosis of patients with suspected methanol toxicity who presented with alcohol intake.
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Affiliation(s)
- Kemal Sener
- Department of Emergency Medicine, Ministry of Health, Başaksehir Çam and Sakura State Hospital, Istanbul, Turkey.
| | - Adem Cakır
- Department of Emergency Medicine, Ministry of Health of Turkey, Canakkale Mehmet Akif Ersoy State Hospital, Canakkale, Turkey
| | - Ertugrul Altug
- Department of Emergency Medicine, Ministry of Health, Başaksehir Çam and Sakura State Hospital, Istanbul, Turkey
| | - Semih Korkut
- Department of Emergency Medicine, Ministry of Health, Başaksehir Çam and Sakura State Hospital, Istanbul, Turkey
| | - Ramazan Güven
- Department of Emergency Medicine, Ministry of Health, Başaksehir Çam and Sakura State Hospital, Istanbul, Turkey
| | - Mücahit Kapci
- Department of Emergency Medicine, Ministry of Health, Başaksehir Çam and Sakura State Hospital, Istanbul, Turkey
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Zhang H, Ren X, Zhang B, Jia A, Wang Y. Size Effect of Cu Nanoparticles in Cu/g-C 3N 4 Composites on Properties for Highly Efficient Photocatalytic Reduction of CO 2 to Methanol. ACS Appl Mater Interfaces 2023; 15:53515-53525. [PMID: 37938839 DOI: 10.1021/acsami.3c12711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
The main goal of this work is to develop cheap photocatalysts for the efficient photocatalytic reduction of CO2 to methanol with water. A series of composites of Cu/g-C3N4 were prepared via a solvothermal method. Copper nanoparticle (Cu NP) size in Cu/g-C3N4 can be easily controlled by adjusting the synthesis temperature. The Cu/g-C3N4 material with the proper size of Cu NP (CuCN-100) had the best photocatalytic property (675 μmol·g-1·h-1) in reducing the amount of CO2 to methanol at room temperature under normal pressure. The particle size of Cu NPs is the key factor to improve the catalytic activity and stability because of the improved transfer and separation of photogenerated charges with the small Cu NPs. Although the sample with large Cu NPs (CuCN-200) initially gave a better activity than that of CuCN-100 due to the formation of double heterojunction, its activity was thoroughly lost after two runs resulting from the continuous photocorrosion. This work provides a valuable insight for preparing efficient semiconductor-metal photocatalysts.
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Affiliation(s)
- Huiliu Zhang
- Hebei Provincial Key Laboratory of Green Chemical Technology & High Efficient Energy Saving, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Xingzhuang Ren
- Hebei Provincial Key Laboratory of Green Chemical Technology & High Efficient Energy Saving, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Bing Zhang
- Tianjin Aozhan Xingda Chemical Technology Co., Ltd, Tianjin 300131, P. R. China
| | - Aizhong Jia
- Hebei Provincial Key Laboratory of Green Chemical Technology & High Efficient Energy Saving, Hebei University of Technology, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Chemical Process Safety, Tianjin 300401, P. R. China
| | - Yanji Wang
- Hebei Provincial Key Laboratory of Green Chemical Technology & High Efficient Energy Saving, Hebei University of Technology, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Chemical Process Safety, Tianjin 300401, P. R. China
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Wang R, Zhang M, Zhang S, Zheng J, Zeng Y, Yang Y, Ding J, Wu X, Zhong Q. Self-Supporting Triphase Photocatalytic CO 2 Reduction to CH 3OH on Controllable Core-Shell Structure with Tunable Interfacial Wettability. ACS Nano 2023. [PMID: 37991830 DOI: 10.1021/acsnano.3c10352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Enhancing the CO2 mass transfer and proton supply in the photocatalytic reduction of CO2 with H2O into CH3OH (PRC-M), while avoiding the hydrogen evolution reaction (HER), remains a challenge. Herein, we propose an approach to control the surface coverage of CO2 and H2O by modifying interfacial wettability, which is achieved by modulating the core-shell structure to expose either hydrophobic melamine-resorcinol-formaldehyde (MRF) or hydrophilic NiAl-layered double hydroxides (NAL). Characterizations reveal that an insufficient proton supply leads to the production of competing CO, while excessive coverage of H2O results in undesired HER. The NAL-MRF integrates hydrophobic and hydrophilic interfaces, contributing to the CO2 mass transfer and H2O adsorption, respectively. This combination forms a microreactor that facilitates the triphase photocatalysis of CO2, H2O, and catalyst, allowing for high local concentrations of both *CO and *H without competing binding sites. Importantly, the formation of covalent bonds and a Z-type heterojunction between hydrophilic NAL and hydrophobic MRF layers accelerates the charge separation. Furthermore, the density functional theory results indicate that the NAL linking promotes the continuous hydrogenation of *CO. As a result, an enhanced CH3OH yield of 31.41 μmol g-1 h-1, with selectivity of 93.62%, is achieved without hole scavengers or precious metals.
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Affiliation(s)
- Ruonan Wang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Mingjia Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Shule Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Jianzhong Zheng
- School of Environmental Science and Engineering, Nanjing Technology University, Nanjing, Jiangsu 211816, PR China
| | - Yiqing Zeng
- School of Environmental Science and Engineering, Nanjing Technology University, Nanjing, Jiangsu 211816, PR China
| | - Yan Yang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Jie Ding
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Xu Wu
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, PR China
| | - Qin Zhong
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
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Ong SN, Kamarudin NHA, Shariff FM, Noor NDM, Ali MSM, Rahman RNZRA. Effects of alcohol concentration and temperature on the dynamics and stability of mutant Staphylococcal lipase. J Biomol Struct Dyn 2023:1-17. [PMID: 37968883 DOI: 10.1080/07391102.2023.2282177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 11/03/2023] [Indexed: 11/17/2023]
Abstract
The stability and activity of lipase in organic media are important parameters in determining how quickly biocatalysis proceeds. This study aimed to examine the effects of two commonly used alcohols in industrial applications, methanol (MtOH) and ethanol (EtOH) on the conformational stability and catalytic activity of G210C lipase, a laboratory-evolved mutant of Staphylococcus epidermidis AT2 lipase. Simulation studies were performed using an open-form predicted structure under 30, 40 and 50% of MtOH and EtOH at 25 °C and 45 °C. The overall enzyme structure becomes more flexible with increasing concentration of MtOH and exhibited the highest flexibility in 40% EtOH. In EtOH, the movement of the lid was found to be temperature-dependent with a noticeable shift in the lid position at 45 °C. Lid opening was evidenced at 50% of MtOH and EtOH which was supported by the increase in SASA of hydrophobic residues of the lid and catalytic triad. The active site remained mostly intact. An open-closed lid transition was observed when the structure was re-simulated in water. Experimental evaluation of the lipase stability showed that the half-life reduced when the enzyme was treated with 40% (v/v) and 50% (v/v) of EtOH and MtOH respectively. The finding implies that a high concentration of alcohol and elevated temperature can induce the lid opening of lipase which could be essential for the activation of the enzyme, provided that the catalytic performance in the active site is not compromised.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shir Nee Ong
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Nor Hafizah Ahmad Kamarudin
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Centre for Foundation Studies in Science of Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Fairolniza Mohd Shariff
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Noor Dina Muhd Noor
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Mohd Shukuri Mohamad Ali
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Raja Noor Zaliha Raja Abd Rahman
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Kolobaric A, Orrell-Trigg R, Orloff S, Fraser V, Chapman J, Cozzolino D. The Use of a Droplet Collar Accessory Attached to a Portable near Infrared Instrument to Identify Methanol Contamination in Whisky. Sensors (Basel) 2023; 23:8969. [PMID: 37960668 PMCID: PMC10647224 DOI: 10.3390/s23218969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 10/23/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023]
Abstract
The aim of this study was to evaluate the ability of a droplet collar accessory attached to a portable near-infrared (NIR) instrument to characterize the artificial contamination of methanol in commercial whisky samples. Unadulterated samples (n = 12) were purchased from local bottle shops where adulterated samples were created by adding methanol (99% pure methanol) at six levels (0.5%, 1%, 2%, 3%, 4% and 5% v/v) to the commercial whisky samples (controls). Samples were analyzed using a drop collar accessory attached to a MicroNIR Onsite instrument (900-1650 nm). Partial least squares (PLS) cross-validation statistics obtained for the prediction of all levels of methanol (from 0 to 5%) addition were considered adequate when the whole adulteration range was used, coefficient of determination in cross-validation (R2cv: 0.95) and standard error in cross of validation (SECV: 0.35% v/v). The cross-validation statistics were R2cv: 0.97, SECV: 0.28% v/v after the 0.5% and 1% v/v methanol addition was removed. These results showed the ability of using a new sample presentation attachment to a portable NIR instrument to analyze the adulteration of whisky with methanol. However, the low levels of methanol adulteration (0.5 and 1%) were not well predicted using the NIR method evaluated.
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Affiliation(s)
- Adam Kolobaric
- School of Science, RMIT University, Melbourne 3000, Australia; (A.K.); (R.O.-T.); (S.O.); (V.F.)
| | - Rebecca Orrell-Trigg
- School of Science, RMIT University, Melbourne 3000, Australia; (A.K.); (R.O.-T.); (S.O.); (V.F.)
| | - Seth Orloff
- School of Science, RMIT University, Melbourne 3000, Australia; (A.K.); (R.O.-T.); (S.O.); (V.F.)
| | - Vanessa Fraser
- School of Science, RMIT University, Melbourne 3000, Australia; (A.K.); (R.O.-T.); (S.O.); (V.F.)
| | - James Chapman
- Faculty of Science, University of Queensland, Brisbane 4072, Australia;
| | - Daniel Cozzolino
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation(QAAFI), University of Queensland, Brisbane 4072, Australia
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Jeong S, Ohto T, Nishiuchi T, Nagata Y, Fujita J, Ito Y. Suppression of Methanol and Formate Crossover through Sulfanilic-Functionalized Holey Graphene as Proton Exchange Membranes. Adv Sci (Weinh) 2023; 10:e2304082. [PMID: 37688335 PMCID: PMC10625063 DOI: 10.1002/advs.202304082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/04/2023] [Indexed: 09/10/2023]
Abstract
Proton exchange membranes with high proton conductivity and low crossover of fuel molecules are required to realize advanced fuel-cell technology. The selective transportation of protons, which occurs by blocking the transportation of fuel molecules across a proton exchange membrane, is crucial to suppress crossover while maintaining a high proton conductivity. In this study, a simple yet powerful method is proposed for optimizing the crossover-conductivity relationship by pasting sulfanilic-functionalized holey graphenes onto a Nafion membrane. The results show that the sulfanilic-functionalized holey graphenes supported by the membrane suppresses the crossover by 89% in methanol and 80% in formate compared with that in the self-assembled Nafion membrane; an ≈60% reduction is observed in the proton conductivity. This method exhibits the potential for application in advanced fuel cells that use methanol and formic acid as chemical fuels to achieve high energy efficiency.
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Affiliation(s)
- Samuel Jeong
- Institute of Applied PhysicsGraduate School of Pure and Applied SciencesUniversity of Tsukuba1‐1‐1 TennodaiTsukubaIbaraki305‐8571Japan
| | - Tatsuhiko Ohto
- Department of Materials Design Innovation EngineeringNagoya UniversityFuro‐choChikusa‐kuAichi464‐8603Japan
- Graduate School of Engineering ScienceOsaka University1‐3 MachikaneyamaToyonakaOsaka560‐8531Japan
| | - Tomohiko Nishiuchi
- Department of ChemistryGraduate School of ScienceOsaka University1‐1 MachikaneyamaToyonakaOsaka560‐0043Japan
| | - Yuki Nagata
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Jun‐ichi Fujita
- Institute of Applied PhysicsGraduate School of Pure and Applied SciencesUniversity of Tsukuba1‐1‐1 TennodaiTsukubaIbaraki305‐8571Japan
| | - Yoshikazu Ito
- Institute of Applied PhysicsGraduate School of Pure and Applied SciencesUniversity of Tsukuba1‐1‐1 TennodaiTsukubaIbaraki305‐8571Japan
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Matam SK, Silverwood IP, Boudjema L, O'Malley AJ, Catlow CRA. Methanol diffusion and dynamics in zeolite H-ZSM-5 probed by quasi-elastic neutron scattering and classical molecular dynamics simulations. Philos Trans A Math Phys Eng Sci 2023; 381:20220335. [PMID: 37691467 PMCID: PMC10493552 DOI: 10.1098/rsta.2022.0335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/31/2023] [Indexed: 09/12/2023]
Abstract
Zeolite ZSM-5 is a key catalyst in commercially relevant processes including the widely studied methanol to hydrocarbon reaction, and molecular diffusion in zeolite pores is known to be a crucial factor in controlling catalytic reactions. Here, we present critical analyses of recent quasi-elastic neutron scattering (QENS) data and complementary molecular dynamics (MD) simulations. The QENS experiments show that the nature of methanol diffusion dynamics in ZSM-5 pores is dependent both on the Si/Al ratio (11, 25, 36, 40 and 140), which determines the Brønsted acid site density of the zeolite, and that the nature of the type of motion observed may vary qualitatively over a relatively small temperature range. At 373 K, on increasing the ratio from 11 to 140, the observed mobile methanol fraction increases and the nature of methanol dynamics changes from rotational (in ZSM-5 with Si/Al of 11) to translational diffusion. The latter is either confined localized diffusion within a pore in zeolites with ratios up to 40 or non-localized, longer-range diffusion in zeolite samples with the ratio of 140. The complementary MD simulations conducted over long time scales (1 ns), which are longer than those measured in the present study by QENS (≈1-440 ps), at 373 K predict the occurrence of long-range translational diffusion of methanol in ZSM-5, independent of the Si/Al ratios (15, 47, 95, 191 and siliceous MFI). The rate of diffusion increases slightly by increasing the ratio from 15 to 95 and thereafter does not depend on zeolite composition. Discrepancies in the observed mobile methanol fraction between the MD simulations (100% methanol mobility in ZSM-5 pores across all Si/Al ratios) and QENS experiments (for example, ≈80% immobile methanol in ZSM-5 with Si/Al of 11) are attributed to the differences in time resolutions of the techniques. This perspective provides comprehensive information on the effect of acid site density on methanol dynamics in ZSM-5 pores and highlights the complementarity of QENS and MD, and their advantages and limitations. This article is part of the theme issue 'Exploring the length scales, timescales and chemistry of challenging materials (Part 2)'.
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Affiliation(s)
- Santhosh K. Matam
- UK Catalysis Hub, Research Complex at Harwell, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0FA, UK
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
| | - Ian P. Silverwood
- UK Catalysis Hub, Research Complex at Harwell, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0FA, UK
- ISIS Pulsed Neutron and Muon Facility, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0QX, UK
| | - Lotfi Boudjema
- UK Catalysis Hub, Research Complex at Harwell, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0FA, UK
- Department of Chemistry, University College London, 20 Gordon Street, London WC1E 6BT, UK
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Alexander J. O'Malley
- UK Catalysis Hub, Research Complex at Harwell, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0FA, UK
- Institute for Sustainability, Department of Chemistry, University of Bath, Bath BA2 7AY, UK
| | - C. Richard A. Catlow
- UK Catalysis Hub, Research Complex at Harwell, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot OX11 0FA, UK
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
- Department of Chemistry, University College London, 20 Gordon Street, London WC1E 6BT, UK
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Desmurs L, Cammarano C, Gimello O, Galarneau A, Hulea V. Influence of the Mesoporosity of Hierarchical ZSM-5 in Toluene Alkylation by Methanol. Materials (Basel) 2023; 16:6872. [PMID: 37959471 PMCID: PMC10649414 DOI: 10.3390/ma16216872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 10/20/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023]
Abstract
Among the different strategies to design highly shape-selective ZSM-5 to obtain para-xylene through toluene alkylation with methanol, the introduction of mesopores to increase reactant and product diffusion has been proposed but barely studied. In this study, we prepared mesoporous ZSM-5 catalysts, named ZSM5-MT(x), from commercial ZSM-5 (Si/Al = 15), using a two-step micelle-templating procedure with octadecyltrimethylammonium bromide as a surfactant in basic medium (x = NaOH/Si). These materials were used as catalysts for the alkylation of toluene by methanol at a low contact time to avoid thermodynamic equilibrium of the xylene isomers. Compared to the parent ZSM-5, the mesoporous ZSM5-MT(x) catalysts did not improve the para-xylene selectivity, revealing that the strategy of increasing diffusion in the catalyst is not a good strategy to follow. However, ZSM5-MT(0.5) showed less deactivation on stream than the parent ZSM-5. Therefore, introducing mesopores to ZSM-5 could be interesting to explore, combined with another strategy of shape selectivity, such as the passivation of the external surface acidity.
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Affiliation(s)
| | | | | | | | - Vasile Hulea
- ICGM, University of Montpellier, CNRS, ENSCM, 34293 Montpellier, France; (L.D.); (C.C.); (O.G.); (A.G.)
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Yu J, Park MJ, Lee J, Kwon SJ, Lim JK, Lee HS, Kang SG, Lee JH, Kwon KK, Kim YJ. Genomic potential and physiological characteristics of C1 metabolism in novel acetogenic bacteria. Front Microbiol 2023; 14:1279544. [PMID: 37933250 PMCID: PMC10625859 DOI: 10.3389/fmicb.2023.1279544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/05/2023] [Indexed: 11/08/2023] Open
Abstract
Acetogenic bacteria can utilize C1 compounds, such as carbon monoxide (CO), formate, and methanol, via the Wood-Ljungdahl pathway (WLP) to produce biofuels and biochemicals. Two novel acetogenic bacteria of the family Eubacteriaceae ES2 and ES3 were isolated from Eulsukdo, a delta island in South Korea. We conducted whole genome sequencing of the ES strains and comparative genome analysis on the core clusters of WLP with Acetobacterium woodii DSM1030T and Eubacterium limosum ATCC8486T. The methyl-branch cluster included a formate transporter and duplicates or triplicates copies of the fhs gene, which encodes formyl-tetrahydrofolate synthetase. The formate dehydrogenase cluster did not include the hydrogenase gene, which might be replaced by a functional complex with a separate electron bifurcating hydrogenase (HytABCDE). Additionally, duplicated copies of the acsB gene, encoding acetyl-CoA synthase, are located within or close to the carbonyl-branch cluster. The serum bottle culture showed that ES strains can utilize a diverse range of C1 compounds, including CO, formate, and methanol, as well as CO2. Notably, ES2 exhibited remarkable resistance to high concentrations of C1 substrates, such as 100% CO (200 kPa), 700 mM formate, and 500 mM methanol. Moreover, ES2 demonstrated remarkable growth rates under 50% CO (0.45 h-1) and 200 mM formate (0.34 h-1). These growth rates are comparable to or surpassing those previously reported in other acetogenic bacteria. Our study introduces novel acetogenic ES strains and describes their genetic and physiological characteristics, which can be utilized in C1-based biomanufacturing.
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Affiliation(s)
- Jihyun Yu
- Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
- KIOST School, University of Science and Technology, Daejeon, Republic of Korea
| | - Mi-Jeong Park
- Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
| | - Joungmin Lee
- Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
| | - Soo Jae Kwon
- Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
- KIOST School, University of Science and Technology, Daejeon, Republic of Korea
| | - Jae Kyu Lim
- Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
- KIOST School, University of Science and Technology, Daejeon, Republic of Korea
| | - Hyun Sook Lee
- Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
- KIOST School, University of Science and Technology, Daejeon, Republic of Korea
| | - Sung Gyun Kang
- Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
- KIOST School, University of Science and Technology, Daejeon, Republic of Korea
| | - Jung-Hyun Lee
- Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
- KIOST School, University of Science and Technology, Daejeon, Republic of Korea
| | - Kae Kyoung Kwon
- Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
- KIOST School, University of Science and Technology, Daejeon, Republic of Korea
| | - Yun Jae Kim
- Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
- KIOST School, University of Science and Technology, Daejeon, Republic of Korea
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Sharma A, Sharma A, Tselykh A, Bozhenyuk A, Choudhury T, Alomar MA, Sánchez-Chero M. Artificial intelligence and internet of things oriented sustainable precision farming: Towards modern agriculture. Open Life Sci 2023; 18:20220713. [PMID: 37854322 PMCID: PMC10579876 DOI: 10.1515/biol-2022-0713] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/05/2023] [Accepted: 08/07/2023] [Indexed: 10/20/2023] Open
Abstract
Agriculture encompasses the study, practice, and discipline of plant cultivation. Agriculture has an extensive history dating back thousands of years. Depending on climate and terrain, it began independently in various locations on the planet. In comparison to what could be sustained by foraging and gathering, agriculture has the potential to significantly increase the human population. Throughout the twenty-first century, precision farming (PF) has increased the agricultural output. precision agriculture (PA) is a technology-enabled method of agriculture that assesses, monitors, and evaluates the needs of specific fields and commodities. The primary objective of this farming method, as opposed to conventional farming, is to increase crop yields and profitability through the precise application of inputs. This work describes in depth the development and function of artificial intelligence (AI) and the internet of things (IoT) in contemporary agriculture. Modern day-to-day applications rely extensively on AI and the IoT. Modern agriculture leverages AI and IoT for technological advancement. This improves the accuracy and profitability of modern agriculture. The use of AI and IoT in modern smart precision agricultural applications is highlighted in this work and the method proposed incorporates specific steps in PF and demonstrates superior performance compared to existing classification methods. It achieves a remarkable accuracy of 98.65%, precision of 98.32%, and recall rate of 97.65% while retaining competitive execution time of 0.23 s, when analysing PF using the FAOSTAT benchmark dataset. Additionally, crucial equipment and methods used in PF are described and the vital advantages and real-time tools utilised in PA are covered in detail.
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Affiliation(s)
- Amit Sharma
- Institute of Computer Technologies and Information Security, Southern Federal University, Taganrog, 347922, Russia
- Chitkara University Institute of Engineering and Technology, Chitkara University, Punjab, India
| | - Ashutosh Sharma
- Chitkara University Institute of Engineering and Technology, Chitkara University, Punjab, India
- School of Computer Science, University of Petroleum and Energy Studies, Dehradun, India
| | - Alexey Tselykh
- Institute of Computer Technologies and Information Security, Southern Federal University, Taganrog, 347922, Russia
| | - Alexander Bozhenyuk
- Institute of Computer Technologies and Information Security, Southern Federal University, Taganrog, 347922, Russia
| | - Tanupriya Choudhury
- Symbiosis Institute of Technology, Symbiosis International University, Pune, Maharashtra, 412115, India
| | - Madani Abdu Alomar
- Department of Industrial Engineering, Faculty of Engineering – Rabigh, King Abdulaziz University, Jeddah21589, Saudi Arabia
| | - Manuel Sánchez-Chero
- Universidad Nacional de Frontera, Sullana, Perú, Facultad de Ingeniería de Industrias Alimentarias y Biotecnología, Sullana, Peru
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Tani A, Masuda S, Fujitani Y, Iga T, Haruna Y, Kikuchi S, Shuaile W, Lv H, Katayama S, Yurimoto H, Sakai Y, Kato J. Metabolism-linked methylotaxis sensors responsible for plant colonization in Methylobacterium aquaticum strain 22A. Front Microbiol 2023; 14:1258452. [PMID: 37901831 PMCID: PMC10613068 DOI: 10.3389/fmicb.2023.1258452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/02/2023] [Indexed: 10/31/2023] Open
Abstract
Motile bacteria take a competitive advantage in colonization of plant surfaces to establish beneficial associations that eventually support plant health. Plant exudates serve not only as primary growth substrates for bacteria but also as bacterial chemotaxis attractants. A number of plant-derived compounds and corresponding chemotaxis sensors have been documented, however, the sensors for methanol, one of the major volatile compounds released by plants, have not been identified. Methylobacterium species are ubiquitous plant surface-symbiotic, methylotrophic bacteria. A plant-growth promoting bacterium, M. aquaticum strain 22A exhibits chemotaxis toward methanol (methylotaxis). Its genome encodes 52 methyl-accepting chemotaxis proteins (MCPs), among which we identified three MCPs (methylotaxis proteins, MtpA, MtpB, and MtpC) responsible for methylotaxis. The triple gene mutant of the MCPs exhibited no methylotaxis, slower gathering to plant tissues, and less efficient colonization on plants than the wild type, suggesting that the methylotaxis mediates initiation of plant-Methylobacterium symbiosis and engages in proliferation on plants. To examine how these MCPs are operating methylotaxis, we generated multiple gene knockouts of the MCPs, and Ca2+-dependent MxaFI and lanthanide (Ln3+)-dependent XoxF methanol dehydrogenases (MDHs), whose expression is regulated by the presence of Ln3+. MtpA was found to be a cytosolic sensor that conducts formaldehyde taxis (formtaxis), as well as methylotaxis when MDHs generate formaldehyde. MtpB contained a dCache domain and exhibited differential cellular localization in response to La3+. MtpB expression was induced by La3+, and its activity required XoxF1. MtpC exhibited typical cell pole localization, required MxaFI activity, and was regulated under MxbDM that is also required for MxaF expression. Strain 22A methylotaxis is realized by three independent MCPs, two of which monitor methanol oxidation by Ln3+-regulated MDHs, and one of which monitors the common methanol oxidation product, formaldehyde. We propose that methanol metabolism-linked chemotaxis is the key factor for the efficient colonization of Methylobacterium on plants.
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Affiliation(s)
- Akio Tani
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Sachiko Masuda
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
- Japan Science and Technology Agency, Advanced Low Carbon Technology Research and Development Program (JST ALCA), Kawaguchi, Japan
| | - Yoshiko Fujitani
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Toshiki Iga
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Yuuki Haruna
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Shiho Kikuchi
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Wang Shuaile
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Haoxin Lv
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Shiori Katayama
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Hiroya Yurimoto
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Yasuyoshi Sakai
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Junichi Kato
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan
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Hernández-Fernández J, González-Cuello R, Ortega-Toro R. Evaluation of the Reactivity of Methanol and Hydrogen Sulfide Residues with the Ziegler-Natta Catalyst during Polypropylene Synthesis and Its Effects on Polymer Properties. Polymers (Basel) 2023; 15:4061. [PMID: 37896305 PMCID: PMC10610409 DOI: 10.3390/polym15204061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/23/2023] [Accepted: 09/27/2023] [Indexed: 10/29/2023] Open
Abstract
The study focused on the evaluation of the influence of inhibitory compounds such as hydrogen sulfide (H2S) and methanol (CH3OH) on the catalytic productivity and properties of the polymers in the polymerization process with the Ziegler-Natta catalyst. The investigation involved experimental measurements, computational calculations using DFT, and analysis of various parameters, such as molecular weight, melt flow index, xylene solubility, and reactivity descriptors. The results revealed a clear correlation between the concentration of H2S and methanol and the parameters evaluated. Increasing the H2S concentrations, on average by 0.5 and 1.0 ppm, resulted in a drastic decrease in the polymer's molecular weight. A directly proportional relationship was observed between the flow rate and the H2S concentration. In the case of methanol, the change occurred from 60 ppm, causing a sharp decrease in the molecular weight of the polymer, which translates into an increase in the fluidity index and a decrease in solubility in xylene. The presence of these inhibitors also affected the catalytic activity, causing a reduction in the productivity of the Ziegler-Natta catalyst. Computational calculations provided a deeper understanding of the molecular behavior and reactivity of the studied compounds. The computational calculations yielded significantly lower results compared to other studies, with values of -69.0 and -43.9 kcal/mol for the Ti-CH3OH and H2S interactions, respectively. These results indicate remarkable stability in the studied interactions and suggest that both adsorptions are highly favorable.
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Affiliation(s)
- Joaquín Hernández-Fernández
- Chemistry Program, Department of Natural and Exact Sciences, San Pablo Campus, University of Cartagena, Cartagena 130015, Colombia
- Chemical Engineering Program, School of Engineering, Universidad Tecnológica de Bolivar, Parque Industrial y Tecnológico Carlos Vélez Pombo, Km 1 Vía Turbaco, Turbaco 130001, Colombia
- Department of Natural and Exact Science, Universidad de la Costa, Barranquilla 30300, Colombia
| | - Rafael González-Cuello
- Food Packaging and Shelf-Life Research Group (FP & SL), Food Engineering Program, Universidad de Cartagena, Avenida del Consulado St. 30, Cartagena de Indias 130015, Colombia; (R.G.-C.); (R.O.-T.)
| | - Rodrigo Ortega-Toro
- Food Packaging and Shelf-Life Research Group (FP & SL), Food Engineering Program, Universidad de Cartagena, Avenida del Consulado St. 30, Cartagena de Indias 130015, Colombia; (R.G.-C.); (R.O.-T.)
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Chen TW, Chen SM, Anushya G, Kannan R, G. Al-Sehemi A, Alargarsamy S, Gajendran P, Ramachandran R. Development of Different Kinds of Electrocatalyst for the Electrochemical Reduction of Carbon Dioxide Reactions: An Overview. Molecules 2023; 28:7016. [PMID: 37894499 PMCID: PMC10609525 DOI: 10.3390/molecules28207016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/26/2023] [Accepted: 10/02/2023] [Indexed: 10/29/2023] Open
Abstract
Significant advancements have been made in the development of CO2 reduction processes for applications such as electrosynthesis, energy storage, and environmental remediation. Several materials have demonstrated great potential in achieving high activity and selectivity for the desired reduction products. Nevertheless, these advancements have primarily been limited to small-scale laboratory settings, and the considerable technical obstacles associated with large-scale CO2 reduction have not received sufficient attention. Many of the researchers have been faced with persistent challenges in the catalytic process, primarily stemming from the low Faraday efficiency, high overpotential, and low limiting current density observed in the production of the desired target product. The highlighted materials possess the capability to transform CO2 into various oxygenates, including ethanol, methanol, and formates, as well as hydrocarbons such as methane and ethane. A comprehensive summary of the recent research progress on these discussed types of electrocatalysts is provided, highlighting the detailed examination of their electrocatalytic activity enhancement strategies. This serves as a valuable reference for the development of highly efficient electrocatalysts with different orientations. This review encompasses the latest developments in catalyst materials and cell designs, presenting the leading materials utilized for the conversion of CO2 into various valuable products. Corresponding designs of cells and reactors are also included to provide a comprehensive overview of the advancements in this field.
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Affiliation(s)
- Tse-Wei Chen
- Department of Materials, Imperial College London, London SW7 2AZ, UK;
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan;
| | - Ganesan Anushya
- Department of Physics, St. Joseph College of Engineering, Sriperumbudur, Chennai 602 117, India;
| | - Ramanujam Kannan
- Department of Chemistry, Sri Kumara Gurupara Swamigal Arts College (Affiliated to Manomaniam Sundaranar University), Srivaikuntam, Thoothukudi 628 619, India;
| | - Abdullah G. Al-Sehemi
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia;
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Saranvignesh Alargarsamy
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan;
| | - Pandi Gajendran
- Department of Chemistry, The Madura College (Affiliated to Madurai Kamaraj University), Vidya Nagar, Madurai 625 011, India;
| | - Rasu Ramachandran
- Department of Chemistry, The Madura College (Affiliated to Madurai Kamaraj University), Vidya Nagar, Madurai 625 011, India;
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