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Jang S, Gun Oh D, Kim H, Hyun Kim K, Khivantsev K, Kovarik L, Hun Kwak J. Controlling the Phase Transformation of Alumina for Enhanced Stability and Catalytic Properties. Angew Chem Int Ed Engl 2024; 63:e202400270. [PMID: 38302694 DOI: 10.1002/anie.202400270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/03/2024]
Abstract
Current transition alumina catalysts require the presence of significant amounts of toxic, environmentally deleterious dopants for their stabilization. Herein, we report a simple and novel strategy to engineer transition aluminas to withstand aging temperatures up to 1200 °C without inducing the transformation to low-surface-area α-Al2O3 and without requiring dopants. By judiciously optimizing the abundance of dominant facets and the interparticle distance, we can control the temperature of the phase transformation from θ-Al2O3 to α-Al2O3 and the specific surface sites on the latter. These specific surface sites provide favorable interactions with supported metal catalysts, leading to improved metal dispersion and greatly enhanced catalytic activity for hydrocarbon oxidation. The results presented herein not only provide molecular-level insights into the critical factors causing deactivation and phase transformation of aluminas but also pave the way for the development of catalysts with improved activity for catalytic hydrocarbon oxidation.
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Affiliation(s)
- Sejin Jang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Dong Gun Oh
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Haneul Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Kwang Hyun Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Konstantin Khivantsev
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Libor Kovarik
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Ja Hun Kwak
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
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2
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Ardila-Fierro KJ, Hernández JG. Intermediates in Mechanochemical Reactions. Angew Chem Int Ed Engl 2024; 63:e202317638. [PMID: 38179857 DOI: 10.1002/anie.202317638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/31/2023] [Accepted: 01/03/2024] [Indexed: 01/06/2024]
Abstract
Mechanochemical reactions offer methodological and environmental advantages for chemical synthesis, constantly attracting attention within the scientific community. Besides unmistakable sustainability advantages, the conditions under which mechanochemical reactions occur, namely solventless conditions, sometimes facilitate the isolation of otherwise labile or inaccessible products. Despite these advantages, limited knowledge exists regarding the mechanisms of these reactions and the types of intermediates involved. Nevertheless, in an expanding number of cases, ex situ and in situ monitoring techniques have allowed for the observation, characterization, and isolation of reaction intermediates in mechanochemical transformations. In this Minireview, we present a series of examples in which reactive intermediates have been detected in mechanochemical reactions spanning organic, organometallic, inorganic, and materials chemistry. Many of these intermediates were stabilized by non-covalent interactions, which played a pivotal role in guiding the chemical transformations. We believe that by uncovering and understanding such instances, the growing mechanochemistry community could find novel opportunities in catalysis and discover new mechanochemical reactions while achieving simplification in chemical reaction design.
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Affiliation(s)
- Karen J Ardila-Fierro
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
| | - José G Hernández
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
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3
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Linberg K, Szymoniak P, Schönhals A, Emmerling F, Michalchuk AAL. The Origin of Delayed Polymorphism in Molecular Crystals Under Mechanochemical Conditions. Chemistry 2023; 29:e202302150. [PMID: 37679939 DOI: 10.1002/chem.202302150] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/09/2023]
Abstract
We show that mechanochemically driven polymorphic transformations can require extremely long induction periods, which can be tuned from hours to days by changing ball milling energy. The robust design and interpretation of ball milling experiments must account for this unexpected kinetics that arises from energetic phenomena unique to the solid state. Detailed thermal analysis, combined with DFT simulations, indicates that these marked induction periods are associated with processes of mechanical activation. Correspondingly, we show that the pre-activation of reagents can also lead to marked changes in the length of induction periods. Our findings demonstrate a new dimension for exerting control over polymorphic transformations in organic crystals. We expect mechanical activation to have a much broader implication across organic solid-state mechanochemistry.
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Affiliation(s)
- Kevin Linberg
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, and Unter den Eichen 87, 12205, Berlin, Germany
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Paulina Szymoniak
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, and Unter den Eichen 87, 12205, Berlin, Germany
| | - Andreas Schönhals
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, and Unter den Eichen 87, 12205, Berlin, Germany
| | - Franziska Emmerling
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, and Unter den Eichen 87, 12205, Berlin, Germany
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Adam A L Michalchuk
- Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, and Unter den Eichen 87, 12205, Berlin, Germany
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom
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4
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Li L, Vozniuk O, Cao Z, Losch P, Felderhoff M, Schüth F. Hydrogenation of different carbon substrates into light hydrocarbons by ball milling. Nat Commun 2023; 14:5257. [PMID: 37644018 PMCID: PMC10465506 DOI: 10.1038/s41467-023-40915-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 08/15/2023] [Indexed: 08/31/2023] Open
Abstract
The conversion of carbon-based solids, like non-recyclable plastics, biomass, and coal, into small molecules appears attractive from different points of view. However, the strong carbon-carbon bonds in these substances pose a severe obstacle, and thus-if such reactions are possible at all-high temperatures are required1-5. The Bergius process for coal conversion to hydrocarbons requires temperatures above 450 °C6, pyrolysis of different polymers to pyrolysis oil is also typically carried out at similar temperatures7,8. We have now discovered that efficient hydrogenation of different solid substrates with the carbon-based backbone to light hydrocarbons can be achieved at room temperature by ball milling. This mechanocatalytic method is surprisingly effective for a broad range of different carbon substrates, including even diamond. The reaction is found to proceed via a radical mechanism, as demonstrated by reactions in the presence of radical scavengers. This finding also adds to the currently limited knowledge in understanding mechanisms of reactions induced by ball milling. The results, guided by the insight into the mechanism, could induce more extended exploration to broaden the application scope and help to address the problem of plastic waste by a mechanocatalytic approach.
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Affiliation(s)
- Linfeng Li
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Olena Vozniuk
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany.
| | - Zhengwen Cao
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao Key Laboratory of Functional Membrane Material and Membrane Technology, No.189 Songling Road, 266101, Qingdao, China
| | - Pit Losch
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Michael Felderhoff
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Ferdi Schüth
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany.
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5
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Chen H, Li B, Liu M, Yang X, Liu J, Qin T, Xue Z, Xing Y, Chen J. Low-Temperature Fabrication of Plate-like α-Al 2O 3 with Less NH 4F Additive. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4415. [PMID: 37374598 DOI: 10.3390/ma16124415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/26/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023]
Abstract
Fluorinated compounds are effective mineralization agents for the fabrication of plate-like α-Al2O3. However, in the preparation of plate-like α-Al2O3, it is still an extremely challenging task to reduce the content of fluoride while ensuring a low synthesis temperature. Herein, oxalic acid and NH4F are proposed for the first time as additives in the preparation of plate-like α-Al2O3. The results showed that plate-like α-Al2O3 can be synthesized at a low temperature of 850 °C with the synergistic effect of oxalic acid and 1 wt.% NH4F. Additionally, the synergistic effect of oxalic acid and NH4F not only can reduce the conversion temperature of α-Al2O3 but also can change the phase transition sequence.
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Affiliation(s)
- Haiyang Chen
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Bin Li
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Meng Liu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xue Yang
- School of Civil and Engineering, Hebei University of Architecture, Zhangjiakou 075000, China
| | - Jie Liu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Tingwei Qin
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zejian Xue
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yun Xing
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Junhong Chen
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
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6
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Tao S, Wang Z, Wang L, Li X, Li X, Wang Y, Wang B, Zi W, Wei Y, Chen K, Tian Z, Hou G. Solid-State Synthesis of Aluminophosphate Zeotypes by Calcination of Amorphous Precursors. J Am Chem Soc 2023; 145:4860-4870. [PMID: 36790297 DOI: 10.1021/jacs.3c00258] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Because of the growing interest in the applications of zeolitic materials and the various challenges associated with traditional synthesis methods, the development of novel synthesis approaches remains of fundamental importance. Herein, we report a general route for the synthesis of aluminophosphate (AlPO) zeotypes by simple calcination of amorphous precursors at moderate temperatures (250-450 °C) for short reaction times (3-60 min). Accordingly, highly crystalline AlPO zeotypes with various topologies of AST, SOD, LTA, AEL, AFI, and -CLO, ranging from ultra-small to extra-large pores, have been successfully synthesized. Multinuclear multidimensional solid-state NMR techniques combined with complementary operando mass spectrometry (MS), powder X-ray diffraction, high-resolution transmission electron microscopy, and Raman characterizations reveal that covalently bonded fluoride in the intermediates catalyze the bond breaking and remaking processes. The confined organic structure-directing agents with high thermal stability direct the ordered rearrangement. This novel synthesis strategy not only shows excellent synthesis efficiency in terms of a simple synthesis procedure, a fast crystallization rate, and a high product yield, but also sheds new light on the crystallization mechanism of zeolitic materials.
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Affiliation(s)
- Shuo Tao
- College of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252059, P. R. China
| | - Zhili Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Lei Wang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, South Puzhu Rd. 30, Nanjing 211816, P. R. China
| | - Xiaolei Li
- College of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252059, P. R. China
| | - Xue Li
- College of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252059, P. R. China
| | - Yujie Wang
- College of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252059, P. R. China
| | - Bo Wang
- College of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252059, P. R. China
| | - Wenwen Zi
- College of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252059, P. R. China
| | - Ying Wei
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Kuizhi Chen
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Zhijian Tian
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Guangjin Hou
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
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7
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Ji Q, Zhang L, Jiao X, Chen D. Alpha Al 2O 3 Nanosheet-Based Biphasic Aerogels with High-Temperature Resistance up to 1600 °C. ACS APPLIED MATERIALS & INTERFACES 2023; 15:6848-6858. [PMID: 36693011 DOI: 10.1021/acsami.2c20272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Alumina aerogels are desirable for lightweight and highly efficient thermal insulation. However, they are typically constrained by brittleness and structural collapse at high temperatures. The manufacture of alumina aerogels with ultralow thermal conductivity and excellent thermal stability at high temperatures beyond 1300 °C is still challenging. Herein, alumina aerogels with superior ultrahigh-temperature-resistant and thermal insulation were successfully prepared by assembling the α-Al2O3 nanosheets with silica sols as the high-temperature binders. Benefiting from the generation of the mullite-covered alumina biphasic structure, the α-Al2O3 nanosheet-based aerogels (ANSAs) exhibit excellent thermal and chemical stabilities even after calcination at as high as 1600 °C. The ANSAs had a low thermal conductivity (0.029 W·m-1·K-1 at room temperature), structural stability with a measured compressive strength of 0.6 MPa, and good thermal shock resistance. Furthermore, the 2D α-alumina@mullite core-shell sheets were also prepared as assembly units to construct aerogels (AMSAs). This core-shell structure can improve temperature resistance through inter-lattice suppression under continuous energy input at high temperatures. The AMSAs have a linear shrinkage of only 2.7% after calcination at 1600 °C for 30 min, further improving the temperature resistance, making them an ideal super-insulating material for applications at extremely high temperatures.
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Affiliation(s)
- Qiyan Ji
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Li Zhang
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Xiuling Jiao
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
| | - Dairong Chen
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. China
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8
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Li Q, Wei G, Duan G, Zhang L, Li Z, Yan F. Valorization of ball-milled waste red mud into heterogeneous catalyst as effective peroxymonosulfate activator for tetracycline hydrochloride degradation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 324:116301. [PMID: 36179468 DOI: 10.1016/j.jenvman.2022.116301] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/25/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Red mud (RM), a kind of iron-rich industrial waste produced in the alumina production process, can be utilized as a potential iron-based material for the removal of refractory organic pollutants from wastewater in advanced oxidation processes (AOPs). In this work, high-iron RM (rich in iron) was activated in a ball mill and applied as an effective activator of peroxymonosulfate (PMS) for tetracycline hydrochloride (TC-HCl) degradation. Compared with that of unmilled RM (69.7%), the TC-HCl decomposition ratios of ball-milled RM (BM-RM) (72.2%-92.0%) were all improved in the presence of PMS. Systematic characterization suggested that ball milling could optimize the physicochemical properties of RM, such as increased surface area, increased oxygen vacancies, enhanced electrical conductivity, and increased exposure of Fe(II) sites, all of which could effectively improve RM for PMS activation to degrade TC-HCl. The quenching experiments and electron paramagnetic resonance technique revealed that 1O2 and SO4·- contributed dominantly to the TC-HCl degradation. Ultra performance liquid chromatography mass spectrometry analysis combined with density functional theory calculation revealed that the degradation pathways of TC-HCl were driven by hydroxylation, N-demethylation and dehydration in BM-RM/PMS system. Based on quantitative structure-activity relationship prediction using the Toxicity Estimation Software Tool software, the toxicity of almost all intermediates was significantly reduced. An obvious inhibition effect on TC-HCl was occurred in the presence of Cl-, whereas the presences of NO3- and SO42- had little effect. However, HCO3- improved TC-HCl removal efficiency. BM-RM had a wide working pH range (pH = 3-11) and showed good stability and reusability in use. Overall, this work not only offers a simple and promising approach to improve the catalytic activity of RM, but also opens new insights into the ball-milled RM as an effective PMS activator for wastewater treatment.
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Affiliation(s)
- Qingyong Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China; School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China
| | - Guangtao Wei
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China; Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi Zhuang Autonomous Region, Nanning, 530004, PR China.
| | - Guangxiang Duan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China
| | - Linye Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China; Guangxi Key Laboratory of Bio-refinery, Guangxi Zhuang Autonomous Region, Nanning, 530007, PR China.
| | - Zhongmin Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China
| | - Feng Yan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, PR China
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9
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He H, Yang B, Wu D, Gao X, Fei X. Applications of crushing and grinding-based treatments for typical metal-containing solid wastes: Detoxification and resource recovery potentials. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 314:120034. [PMID: 36030964 DOI: 10.1016/j.envpol.2022.120034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 08/14/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
Metal-containing solid wastes can induce serious environmental pollution if managed improperly, but contain considerable resources. The detoxification and resource recoveries of these wastes are of both environmental and economic significances, being indispensable for circular economy. In the past decades, attempts have been made worldwide to treat these wastes. Crushing and grinding-based treatments have been increasingly applied, the operating apparatus and parameters of which depend on the waste type and treatment purpose. Based on the relevant studies, the applications of crushing and grinding on four major types of solid wastes, namely spent lithium-ion batteries (LIBs) cathode, waste printed circuit boards (WPCBs), incineration bottom ash (IBA), and incineration fly ash (IFA) are here systematically reviewed. These types of solid wastes are generated in increasing amounts, and have the potentials to release various organic and inorganic pollutants. Despite of the widely different texture, composition, and other physicochemical properties of the solid wastes, crushing and grinding have been demonstrated to be universally applicable. For each of the four wastes, the technical route that involving crushing and grinding is described with the advantages highlighted. The crushing and grinding serve either mainstream or auxiliary role in the processing of the solid wastes. This review summarizes and highlights the developments and future directions of crushing and grinding-based treatments.
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Affiliation(s)
- Hongping He
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China; School of Civil and Environmental Engineering, Nanyang Technological University, 639798, Singapore
| | - Bo Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Deli Wu
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science & Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control Ecological Security, Shanghai, 200092, PR China
| | - Xiaofeng Gao
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Xunchang Fei
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798, Singapore; Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, 637141, Singapore.
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10
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Sarma BB, Maurer F, Doronkin DE, Grunwaldt JD. Design of Single-Atom Catalysts and Tracking Their Fate Using Operando and Advanced X-ray Spectroscopic Tools. Chem Rev 2022; 123:379-444. [PMID: 36418229 PMCID: PMC9837826 DOI: 10.1021/acs.chemrev.2c00495] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The potential of operando X-ray techniques for following the structure, fate, and active site of single-atom catalysts (SACs) is highlighted with emphasis on a synergetic approach of both topics. X-ray absorption spectroscopy (XAS) and related X-ray techniques have become fascinating tools to characterize solids and they can be applied to almost all the transition metals deriving information about the symmetry, oxidation state, local coordination, and many more structural and electronic properties. SACs, a newly coined concept, recently gained much attention in the field of heterogeneous catalysis. In this way, one can achieve a minimum use of the metal, theoretically highest efficiency, and the design of only one active site-so-called single site catalysts. While single sites are not easy to characterize especially under operating conditions, XAS as local probe together with complementary methods (infrared spectroscopy, electron microscopy) is ideal in this research area to prove the structure of these sites and the dynamic changes during reaction. In this review, starting from their fundamentals, various techniques related to conventional XAS and X-ray photon in/out techniques applied to single sites are discussed with detailed mechanistic and in situ/operando studies. We systematically summarize the design strategies of SACs and outline their exploration with XAS supported by density functional theory (DFT) calculations and recent machine learning tools.
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Affiliation(s)
- Bidyut Bikash Sarma
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany,Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany,
| | - Florian Maurer
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany
| | - Dmitry E. Doronkin
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany,Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany
| | - Jan-Dierk Grunwaldt
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany,Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany,
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11
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Guan X, Li J, Luo P, Dong SJ. By−products from the Al−water Reaction for Hydrogen Generation−Evolution and Properties. ChemistrySelect 2022. [DOI: 10.1002/slct.202203441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Xu Guan
- College of Shipping and Ocean Engineering Wuhan Institute of Shipbuilding Technology Wuhan Hubei 430050 China
| | - Jian Li
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan Hubei 430068 China
| | - Ping Luo
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan Hubei 430068 China
- Hubei Longzhong Laboratory Xiangyang Hubei 441000 China
| | - Shijie J. Dong
- School of Mechanical Engineering Wuhan Polytechnic University Wuhan Hubei 430048 China
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12
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Incorporating 2D γ-Al2O3 nanosheets into the flexible PEO-based solid electrolyte for lithium metal batteries. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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A general method for rapid synthesis of refractory carbides by low-pressure carbothermal shock reduction. Proc Natl Acad Sci U S A 2022; 119:e2121848119. [PMID: 36067324 PMCID: PMC9477234 DOI: 10.1073/pnas.2121848119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Refractory carbides are attractive candidates for support materials in heterogeneous catalysis because of their high thermal, chemical, and mechanical stability. However, the industrial applications of refractory carbides, especially silicon carbide (SiC), are greatly hampered by their low surface area and harsh synthetic conditions, typically have a very limited surface area (<200 m2 g-1), and are prepared in a high-temperature environment (>1,400 °C) that lasts for several or even tens of hours. Based on Le Chatelier's principle, we theoretically proposed and experimentally verified that a low-pressure carbothermal reduction (CR) strategy was capable of synthesizing high-surface area SiC (569.9 m2 g-1) at a lower temperature and a faster rate (∼1,300 °C, 50 Pa, 30 s). Such high-surface area SiC possesses excellent thermal stability and antioxidant capacity since it maintained stability under a water-saturated airflow at 650 °C for 100 h. Furthermore, we demonstrated the feasibility of our strategy for scale-up production of high-surface area SiC (460.6 m2 g-1), with a yield larger than 12 g in one experiment, by virtue of an industrial viable vacuum sintering furnace. Importantly, our strategy is also applicable to the rapid synthesis of refractory metal carbides (NbC, Mo2C, TaC, WC) and even their emerging high-entropy carbides (VNbMoTaWC5, TiVNbTaWC5). Therefore, our low-pressure CR method provides an alternative strategy, not merely limited to temperature and time items, to regulate the synthesis and facilitate the upcoming industrial applications of carbide-based advanced functional materials.
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14
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Deng B, Advincula PA, Luong DX, Zhou J, Zhang B, Wang Z, McHugh EA, Chen J, Carter RA, Kittrell C, Lou J, Zhao Y, Yakobson BI, Zhao Y, Tour JM. High-surface-area corundum nanoparticles by resistive hotspot-induced phase transformation. Nat Commun 2022; 13:5027. [PMID: 36028480 PMCID: PMC9418197 DOI: 10.1038/s41467-022-32622-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 08/09/2022] [Indexed: 11/09/2022] Open
Abstract
High-surface-area α-Al2O3 nanoparticles are used in high-strength ceramics and stable catalyst supports. The production of α-Al2O3 by phase transformation from γ-Al2O3 is hampered by a high activation energy barrier, which usually requires extended high-temperature annealing (~1500 K, > 10 h) and suffers from aggregation. Here, we report the synthesis of dehydrated α-Al2O3 nanoparticles (phase purity ~100%, particle size ~23 nm, surface area ~65 m2 g-1) by a pulsed direct current Joule heating of γ-Al2O3. The phase transformation is completed at a reduced bulk temperature and duration (~573 K, < 1 s) via an intermediate δ'-Al2O3 phase. Numerical simulations reveal the resistive hotspot-induced local heating in the pulsed current process enables the rapid transformation. Theoretical calculations show the topotactic transition (from γ- to δ'- to α-Al2O3) is driven by their surface energy differences. The α-Al2O3 nanoparticles are sintered to nanograined ceramics with hardness superior to commercial alumina and approaching that of sapphire.
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Affiliation(s)
- Bing Deng
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Paul A Advincula
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Duy Xuan Luong
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Jingan Zhou
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, 77005, USA
| | - Boyu Zhang
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, 77005, USA
| | - Zhe Wang
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Emily A McHugh
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Jinhang Chen
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Robert A Carter
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Carter Kittrell
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Jun Lou
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, 77005, USA.,Smalley-Curl Institute, Rice University, Houston, TX, 77005, USA.,Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Yuji Zhao
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, 77005, USA
| | - Boris I Yakobson
- Department of Chemistry, Rice University, Houston, TX, 77005, USA.,Department of Materials Science and NanoEngineering, Rice University, Houston, TX, 77005, USA.,Smalley-Curl Institute, Rice University, Houston, TX, 77005, USA
| | - Yufeng Zhao
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, 77005, USA. .,Corban University, 5000 Deer Park Drive SE, Salem, OR, 97317, USA.
| | - James M Tour
- Department of Chemistry, Rice University, Houston, TX, 77005, USA. .,Department of Materials Science and NanoEngineering, Rice University, Houston, TX, 77005, USA. .,Smalley-Curl Institute, Rice University, Houston, TX, 77005, USA. .,NanoCarbon Center and the Welch Institute for Advanced Materials, Rice University, Houston, TX, 77005, USA.
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15
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Refining of copper powder by a novel micro-abrasive milling method conducted in the air. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Chemoselective Chan-Lam coupling by directly using copper powders via mechanochemical metal activation for catalysis. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Kumar A, Dutta S, Kim S, Kwon T, Patil SS, Kumari N, Jeevanandham S, Lee IS. Solid-State Reaction Synthesis of Nanoscale Materials: Strategies and Applications. Chem Rev 2022; 122:12748-12863. [PMID: 35715344 DOI: 10.1021/acs.chemrev.1c00637] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nanomaterials (NMs) with unique structures and compositions can give rise to exotic physicochemical properties and applications. Despite the advancement in solution-based methods, scalable access to a wide range of crystal phases and intricate compositions is still challenging. Solid-state reaction (SSR) syntheses have high potential owing to their flexibility toward multielemental phases under feasibly high temperatures and solvent-free conditions as well as their scalability and simplicity. Controlling the nanoscale features through SSRs demands a strategic nanospace-confinement approach due to the risk of heat-induced reshaping and sintering. Here, we describe advanced SSR strategies for NM synthesis, focusing on mechanistic insights, novel nanoscale phenomena, and underlying principles using a series of examples under different categories. After introducing the history of classical SSRs, key theories, and definitions central to the topic, we categorize various modern SSR strategies based on the surrounding solid-state media used for nanostructure growth, conversion, and migration under nanospace or dimensional confinement. This comprehensive review will advance the quest for new materials design, synthesis, and applications.
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Affiliation(s)
- Amit Kumar
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Soumen Dutta
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Seonock Kim
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Taewan Kwon
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Santosh S Patil
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Nitee Kumari
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Sampathkumar Jeevanandham
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - In Su Lee
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.,Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, Seoul 03722, Korea
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18
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De Bellis J, Ochoa-Hernández C, Farès C, Petersen H, Ternieden J, Weidenthaler C, Amrute AP, Schüth F. Surface and Bulk Chemistry of Mechanochemically Synthesized Tohdite Nanoparticles. J Am Chem Soc 2022; 144:9421-9433. [PMID: 35604643 PMCID: PMC9164225 DOI: 10.1021/jacs.2c02181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Aluminum oxides, oxyhydroxides, and hydroxides are important in different fields of application due to their many attractive properties. However, among these materials, tohdite (5Al2O3·H2O) is probably the least known because of the harsh conditions required for its synthesis. Herein, we report a straightforward methodology to synthesize tohdite nanopowders (particle diameter ∼13 nm, specific surface area ∼102 m2 g-1) via the mechanochemically induced dehydration of boehmite (γ-AlOOH). High tohdite content (about 80%) is achieved upon mild ball milling (400 rpm for 48 h in a planetary ball mill) without process control agents. The addition of AlF3 can promote the crystallization of tohdite by preventing the formation of the most stable α-Al2O3, resulting in the formation of almost phase-pure tohdite. The availability of easily accessible tohdite samples allowed comprehensive characterization by powder X-ray diffraction, total scattering analysis, solid-state NMR (1H and 27Al), N2-sorption, electron microscopy, and simultaneous thermal analysis (TG-DSC). Thermal stability evaluation of the samples combined with structural characterization evidenced a low-temperature transformation sequence: 5Al2O3·H2O → κ-Al2O3 → α-Al2O3. Surface characterization via DRIFTS, ATR-FTIR, D/H exchange experiments, pyridine-FTIR, and NH3-TPD provided further insights into the material properties.
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Affiliation(s)
- Jacopo De Bellis
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Cristina Ochoa-Hernández
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Christophe Farès
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Hilke Petersen
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Jan Ternieden
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Claudia Weidenthaler
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Amol P Amrute
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Ferdi Schüth
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
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19
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Mechanistic elucidation of freezing-induced surface decomposition of aluminum oxyhydroxide adjuvant. iScience 2022; 25:104456. [PMID: 35874920 PMCID: PMC9301878 DOI: 10.1016/j.isci.2022.104456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/27/2022] [Accepted: 05/14/2022] [Indexed: 11/25/2022] Open
Abstract
The freezing-induced aggregation of aluminum-based (Alum) adjuvants has been considered as the most important cause of reduced vaccine potency. However, the intrinsic properties that determine the functionality of Alum after freezing have not been elucidated. In this study, we used engineered aluminum oxyhydroxide nanoparticles (AlOOH NPs) and demonstrated that cryogenic freezing led to the mechanical pressure-mediated reduction of surface hydroxyl. The sugar-based surfactant, octyl glucoside (OG), was demonstrated to shield AlOOH NPs from the freezing-induced loss of hydroxyl content and the aggregation through the reduction of recrystallization-induced mechanical stress. As a result, the antigenic adsorption property of frozen AlOOH NPs could be effectively protected. When hepatitis B surface antigen (HBsAg) was adjuvanted with OG-protected frozen AlOOH NPs in mice, the loss of immunogenicity was inhibited. These findings provide insights into the freezing-induced surface decomposition of Alum and can be translated to design of protectants to improve the stability of vaccines. The freezing stress led to the destruction of surface hydroxyl group on AlOOH NPs Octyl glucoside protected AlOOH NPs from freezing-induced surface decomposition Octyl glucoside protected vaccines from freezing-induced loss of immunogenicity
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20
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Han G, Zhang P, Scholzen P, Noh H, Yang M, Kweon DH, Jeon J, Kim YH, Kim S, Han S, Andreev AS, Lang G, Ihm K, Li F, d'Espinose de Lacaillerie J, Baek J. Extreme Enhancement of Carbon Hydrogasification via Mechanochemistry. Angew Chem Int Ed Engl 2022; 61:e202117851. [DOI: 10.1002/anie.202117851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Indexed: 11/09/2022]
Affiliation(s)
- Gao‐Feng Han
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Peng Zhang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta Ministry of Education Institute of Environmental Research at Greater Bay Guangzhou University Guangzhou 510006 P. R. China
| | - Pascal Scholzen
- Soft Matter Science and Engineering Laboratory (SIMM) UMR CNRS 7615, ESPCI Paris, Université PSL Sorbonne Université 75005 Paris France
| | - Hyuk‐Jun Noh
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Mihyun Yang
- Pohang Accelerator Laboratory Pohang 37673 South Korea
| | - Do Hyung Kweon
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Jong‐Pil Jeon
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Young Hyun Kim
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Seong‐Wook Kim
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Sun‐Phil Han
- UNIST Central Research Facilities Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea
| | - Andrey S. Andreev
- Total Research and Technology Feluy (TRTF) Zone Industrielle C 7181 Feluy Belgium
| | - Guillaume Lang
- Laboratoire de Physique et d'Étude des Matériaux (LPEM) UMR CNRS 8213, ESPCI Paris, Université PSL Sorbonne Université 75005 Paris France
| | - Kyuwook Ihm
- Pohang Accelerator Laboratory Pohang 37673 South Korea
| | - Feng Li
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | | | - Jong‐Beom Baek
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
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21
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Han G, Zhang P, Scholzen P, Noh H, Yang M, Kweon DH, Jeon J, Kim YH, Kim S, Han S, Andreev AS, Lang G, Ihm K, Li F, d'Espinose de Lacaillerie J, Baek J. Extreme Enhancement of Carbon Hydrogasification via Mechanochemistry. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gao‐Feng Han
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Peng Zhang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta Ministry of Education Institute of Environmental Research at Greater Bay Guangzhou University Guangzhou 510006 P. R. China
| | - Pascal Scholzen
- Soft Matter Science and Engineering Laboratory (SIMM) UMR CNRS 7615, ESPCI Paris, Université PSL Sorbonne Université 75005 Paris France
| | - Hyuk‐Jun Noh
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Mihyun Yang
- Pohang Accelerator Laboratory Pohang 37673 South Korea
| | - Do Hyung Kweon
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Jong‐Pil Jeon
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Young Hyun Kim
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Seong‐Wook Kim
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | - Sun‐Phil Han
- UNIST Central Research Facilities Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea
| | - Andrey S. Andreev
- Total Research and Technology Feluy (TRTF) Zone Industrielle C 7181 Feluy Belgium
| | - Guillaume Lang
- Laboratoire de Physique et d'Étude des Matériaux (LPEM) UMR CNRS 8213, ESPCI Paris, Université PSL Sorbonne Université 75005 Paris France
| | - Kyuwook Ihm
- Pohang Accelerator Laboratory Pohang 37673 South Korea
| | - Feng Li
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
| | | | - Jong‐Beom Baek
- School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks Ulsan National Institute of Science and Technology (UNIST) 50 UNIST Ulsan 44919 South Korea
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22
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In Situ Analytical Methods for the Characterization of Mechanochemical Reactions. CRYSTALS 2022. [DOI: 10.3390/cryst12030345] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The interest in mechanochemical reactions and their fields of application have increased enormously in recent times. Mechanically activated reactions offer the advantage of cost-efficiency as well as environmentally friendly syntheses routes. In contrast to thermally induced processes, the energy transfer via the milling media takes place on a local scale. This leads to unique reaction pathways, which often also result in the formation of metastable phases. For the understanding of reaction pathways on a mechanistic level, it is very important to follow the processes taking place in the grinding jar during milling. Besides the measurement of pressure and temperature changes during a mechanochemical reaction, in situ high energy synchrotron X-ray powder diffraction and Raman spectroscopy experiments have been successfully implemented over the last 10 years. This review will highlight the developments which were achieved in the field of in situ monitoring of mechanochemical reactions and their input to the understanding of mechanochemistry.
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23
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Yang S, Yang S, Zhu Y, Fan L, Zhang M. Flash Sintering of dense alumina ceramic discs with high hardness. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2021.09.061] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Nikolic M, Longo F, Billeter E, Cesarini A, Trtik P, Borgschulte A. Combinatorial neutron imaging methods for hydrogenation catalysts. Phys Chem Chem Phys 2022; 24:27394-27405. [DOI: 10.1039/d2cp03863c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Combinatorial approach based on neutron imaging is capable of measuring more than 50 samples in situ under identical reaction conditions in one experiment.
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Affiliation(s)
- Marin Nikolic
- Laboratory for Advanced Analytical Technologies, Empa – Swiss Federal Laboratories for Material Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Filippo Longo
- Laboratory for Advanced Analytical Technologies, Empa – Swiss Federal Laboratories for Material Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Emanuel Billeter
- Laboratory for Advanced Analytical Technologies, Empa – Swiss Federal Laboratories for Material Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Alessia Cesarini
- Laboratory for Advanced Analytical Technologies, Empa – Swiss Federal Laboratories for Material Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, CH-8093 Zürich, Switzerland
| | - Pavel Trtik
- Laboratory for Neutron Scattering and Imaging, Paul-Scherrer-Institute, Forschungsstrasse 111, CH-5232 Villigen, Switzerland
| | - Andreas Borgschulte
- Laboratory for Advanced Analytical Technologies, Empa – Swiss Federal Laboratories for Material Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
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25
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Pigeon T, Chizallet C, Raybaud P. Revisiting γ-alumina surface models through the topotactic transformation of boehmite surfaces. J Catal 2022. [DOI: 10.1016/j.jcat.2021.11.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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26
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Mao W, Bai Y, Jia Z, Qin Y, Wang B, Zhang W, Lu J, Kemnitz E. The ethylene glycol-mediated sol-gel synthesis of nano AlF 3: structural and acidic properties after different post treatments. Dalton Trans 2021; 51:935-945. [PMID: 34928289 DOI: 10.1039/d1dt03506a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, the structure and surface acidity of nano AlF3 prepared by the ethylene glycol-mediated sol-gel process, followed by different post treatments including post-fluorination and calcination, were systematically investigated. FT-IR, elemental analysis, XPS and TG-DTA-MS results indicate the ethylene glycol strongly interacts with the as-prepared AlF3 precursor, thus stabilizing the formed nano particles. MAS NMR spectroscopy combined with in situ FT-IR and HRTEM techniques reveal that AlF6, AlO6-xFx and AlO6 species are present in the resulting X-ray amorphous nano AlF3. The fraction of AlF6 species formed after post-fluorination significantly increases, whereas more AlO6-xFx species are formed just after calcination. After a comparable post-fluorination treatment, the CHClF2 dismutation activity at room temperature indicates that nano AlF3 prepared according the ethylene glycol-mediated route does not possess the same super-strong acidity as HS-AlF3 prepared by the fluorolytic sol-gel method, although NH3-TPD and N2-sorption results indicate larger BET surface areas and high concentration of acid sites for the former as compared to the latter. This might be rationalized based on the absence of terminal fluorine species and the presence of a significant number of AlO6-xFx and AlO6 species in the resulting nano AlF3 as revealed by 27Al, 19F MAS NMR and HRTEM. An interesting consequence is that these oxygen-containing species stabilize the microstructure of AlF3 formed, resulting in improved thermal stability of these phases as compared to "classically" prepared HS-AlF3.
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Affiliation(s)
- Wei Mao
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, Shaanxi 710065, China.
| | - Yanbo Bai
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, Shaanxi 710065, China.
| | - Zhaohua Jia
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, Shaanxi 710065, China.
| | - Yue Qin
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, Shaanxi 710065, China.
| | - Bo Wang
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, Shaanxi 710065, China.
| | - Wei Zhang
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, Shaanxi 710065, China.
| | - Jian Lu
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, Shaanxi 710065, China.
| | - Erhard Kemnitz
- Department of Chemistry, Humboldt-Universitat zu Berlin, Brook-Taylor-Strase 2, D-12489 Berlin, Germany.
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27
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Krüger H, Thiessen E, Bronold FX, Fehske H, Melzer A. Charge measurement of SiO_{2} nanoparticles in an rf plasma by ir absorption. Phys Rev E 2021; 104:045208. [PMID: 34781538 DOI: 10.1103/physreve.104.045208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/24/2021] [Indexed: 11/07/2022]
Abstract
We have performed measurements of the ir absorption of SiO_{2} nanoparticles confined in an argon radiofrequency plasma discharge using a Fourier transform infrared spectrometer. By varying the gas pressure of the discharge and duty cycle of the applied radiofrequency voltage, we observed a shift of the absorption peak of SiO_{2}. We attributed this shift to charge-dependent absorption features of SiO_{2}. The charge-dependent shift has been calculated for SiO_{2} particles, and from comparisons with the experiment the particle charge has been retrieved using our infrared phonon resonance shift method. With the two different approaches of changing the gas pressure and altering the duty cycle, we are able to deduce a relative change of the particle charge with pressure variations and an absolute estimate of the charge with the duty cycle.
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Affiliation(s)
- Harald Krüger
- Institute of Physics, University of Greifswald, Felix-Hausdorff-Strasse 6, 17489 Greifswald, Germany
| | - Elena Thiessen
- Institute of Physics, University of Greifswald, Felix-Hausdorff-Strasse 6, 17489 Greifswald, Germany
| | - Franz Xaver Bronold
- Institute of Physics, University of Greifswald, Felix-Hausdorff-Strasse 6, 17489 Greifswald, Germany
| | - Holger Fehske
- Institute of Physics, University of Greifswald, Felix-Hausdorff-Strasse 6, 17489 Greifswald, Germany
| | - André Melzer
- Institute of Physics, University of Greifswald, Felix-Hausdorff-Strasse 6, 17489 Greifswald, Germany
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Hu Z, Zhu N, Wei X, Zhang S, Li F, Wu P, Chen Y. Efficient separation of aluminum foil from mixed-type spent lithium-ion power batteries. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 298:113500. [PMID: 34388548 DOI: 10.1016/j.jenvman.2021.113500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/28/2021] [Accepted: 08/06/2021] [Indexed: 06/13/2023]
Abstract
The disposal of spent lithium-ion power batteries (LIBs) has become an important research topic owing to the booming market for electric vehicles. However, the recovery efficiency of the alkaline solution and organic solvent methods currently used to separate Al foil from cathode materials still has room for improvement. The insufficient separation of Al foil and complexity of the battery types present obstacles to the extraction of valuable metals using simple processes. In this study, an efficient approach is developed to separate the Al foil in mixed-type spent LIBs (M-LIBs), namely, LiNixCoyMnzO2 (NCM), LiFePO4 (LFP), and LiMn2O4 (LMO) LIBs, by controlled pyrolysis. Hundred percent of the Al foil was recovered at the temperature of 450 °C, holding time of 60 min, and heating rate of 10 °C/min. The purity of Al in the recovered foil was 99.41 %, 99.83 % and 99.92 %, and the recovery efficiency of the active cathode materials was 96.01 %, 99.80 % and 99.15 % for NCM, LFP and LMO, respectively, without the loss of active cathode materials. The obtained active cathode materials exhibited a favorable crystalline structure, and the average particle diameter was reduced from 300.497 to 24.316 μm with a smaller and looser morphology. The process could be well fitted with the Friedman differential equation, and the correlation coefficients were higher than 0.99. The efficient separation could be attributed to the complete rupture of long chain -(CH2CF2)-n bonds in the poly (vinylidene difluoride) (PVDF) binder, which resulted in the formation of HF, trifluorobenzene, alkanes, and gaseous single molecule CH2CF2. Therefore, this work potentially provides an alternative approach for the efficient separation of Al foil in M-LIBs, thereby simplifying the process and achieving lower cost, reduced loss of valuable metals, and higher recovery efficiency.
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Affiliation(s)
- Zhilin Hu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Nengwu Zhu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou, 510006, PR China; Guangdong Provincial Key Laboratory of Solid Waste Pollution Control and Recycling, Guangzhou, 510006, PR China; Guangdong Environmental Protection Key Laboratory of Solid Waste Treatment and Recycling, Guangzhou, 510006, PR China.
| | - Xiaorong Wei
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Sihai Zhang
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Fei Li
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Pingxiao Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou, 510006, PR China; Guangdong Provincial Key Laboratory of Solid Waste Pollution Control and Recycling, Guangzhou, 510006, PR China
| | - Yijun Chen
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
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Rathmann T, Petersen H, Reichle S, Schmidt W, Amrute AP, Etter M, Weidenthaler C. In situ synchrotron x-ray diffraction studies monitoring mechanochemical reactions of hard materials: Challenges and limitations. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:114102. [PMID: 34852549 DOI: 10.1063/5.0068627] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
In situ monitoring of mechanochemical reactions of soft matter is feasible by synchrotron diffraction experiments. However, so far, reactions of hard materials in existing polymer milling vessels failed due to insufficient energy input. In this study, we present the development of a suitable setup for in situ diffraction experiments at a synchrotron facility. The mechanochemical transformation of boehmite, γ-AlOOH, to corundum, α-Al2O3, was chosen as a model system. The modifications of the mill's clamping system and the vessels themselves were investigated separately. Starting from a commercially available Retsch MM 400 shaker mill, the influence of the geometrical adaptation of the setup on the milling process was investigated. Simply extending the specimen holder proved to be not sufficient because changes in mechanical forces need to be accounted for in the construction of optimized extensions. Milling vessels that are suitable for diffraction experiments and also guarantee the required energy input as well as mechanical stability were developed. The vessels consist of a steel body and modular polymer/steel rings as x-ray transparent windows. In addition, the vessels are equipped with a gas inlet and outlet system that is connectable to a gas analytics setup. Based on the respective modifications, the transformation of boehmite to corundum could be observed in an optimized setup.
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Affiliation(s)
- Tobias Rathmann
- Max-Planck-Institut für Kohlenforschung, Heterogeneous Catalysis, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
| | - Hilke Petersen
- Max-Planck-Institut für Kohlenforschung, Heterogeneous Catalysis, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
| | - Steffen Reichle
- Max-Planck-Institut für Kohlenforschung, Heterogeneous Catalysis, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
| | - Wolfgang Schmidt
- Max-Planck-Institut für Kohlenforschung, Heterogeneous Catalysis, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
| | - Amol P Amrute
- Max-Planck-Institut für Kohlenforschung, Heterogeneous Catalysis, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
| | - Martin Etter
- Deutsches Elektronen Synchrotron (DESY) P02.1 PETRA III, Notkestr. 85, 22607 Hamburg, Germany
| | - Claudia Weidenthaler
- Max-Planck-Institut für Kohlenforschung, Heterogeneous Catalysis, Kaiser-Wilhelm-Platz 1, 45470 Mülheim, Germany
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Wang Z, Xiang H, Zou J, Mai Z, Cao Z, Li M, Fan B, Shao G, Wang H, Xu H, Zhang R, Lu H. Effect of process factors of microwave hydrothermal method on the preparation of micron-sized spherical α-Al2O3 particles. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Khlyustova A, Sirotkin N, Titov V, Agafonov A. One‐Pot Underwater Plasma Synthesis and Characterization of Fe‐ and Ni‐Doped Boehmite. CRYSTAL RESEARCH AND TECHNOLOGY 2021. [DOI: 10.1002/crat.202100117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Anna Khlyustova
- G. A. Krestov Institute of Solution Chemistry of RAS Ivanovo 153045 Russia
| | - Nikolay Sirotkin
- G. A. Krestov Institute of Solution Chemistry of RAS Ivanovo 153045 Russia
| | - Valery Titov
- G. A. Krestov Institute of Solution Chemistry of RAS Ivanovo 153045 Russia
| | - Alexander Agafonov
- G. A. Krestov Institute of Solution Chemistry of RAS Ivanovo 153045 Russia
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Meng A, Tian W, Yang H, Wang X, Wang X, Li Z. Molybdenum sulfide-modified metal-free graphitic carbon nitride/black phosphorus photocatalyst synthesized via high-energy ball-milling for efficient hydrogen evolution and hexavalent chromium reduction. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125400. [PMID: 33607584 DOI: 10.1016/j.jhazmat.2021.125400] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 02/04/2021] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
Improving the photocatalytic property of metal-free photocatalyst is still a challenging work. Herein, a novel high-efficiency molybdenum sulfide (MoS2)-modified metal-free graphitic carbon nitride (g-C3N4)/black phosphorus (BP) photocatalyst (MCN/BP/MS) was synthesized on a large scale via high-energy ball milling process. The optimized MCN/BP/MS exhibits the excellent hydrogen evolution rate of 2146.8 µmol·g-1·h-1, and hexavalent chromium (Cr(Ⅵ)) reduction activity with an apparent rate constant of 0.1464 min-1 and a degradation rate of 100% in 25 min. Detailed characterizations and mechanism research verified that the significantly improved photocatalytic activity of MCN/BP/MS mainly profited from the matched band structure, enhanced light absorption, intense interface contact, as well as the type-Ⅰ/Z hybrid charge transfer mechanism, which gave rise to a consecutive multistep charge migration, thus the photocarriers transfer and separation can be greatly promoted, and the photogenerated electrons with high reducing capacity can be preserved. This work not only provides a high-efficiency g-C3N4-based noble-metal-free photocatalyst, but also affords a beneficial inspiration for improving the photocatalytic property of the metal free photocatalyst.
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Affiliation(s)
- Alan Meng
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE. College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China
| | - Wenli Tian
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE. College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China
| | - Hui Yang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE. College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China
| | - Xianghu Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE. College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China
| | - Xuehua Wang
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China.
| | - Zhenjiang Li
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China; College of Sinp-German Science and Technology, Qingdao University of Science and Technology, Qingdao 266061, Shandong, PR China.
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33
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Chen F, Man N, Yang C, Cao R, Lian Y, Zhang JH, Lai W, Xue R, Ma Y. Synthesis of γ Phase and Amorphous Solid Dispersion of Glycine from α-Glycine During the Solvent-Free Ball Milling Process. J Pharm Sci 2021; 110:3171-3175. [PMID: 34139259 DOI: 10.1016/j.xphs.2021.06.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 12/01/2022]
Abstract
Nano α-glycine crystals, γ-glycine crystals, and amorphous solid dispersion (ASD) of glycine were prepared through solvent-free ball milling of commercial α-glycine. The solid-state polymorph conversion of glycine from α to γ was completely realized by ball milling with 0.2 wt.% NaCl for 1 h or by ball milling with 0.02 wt.% NaCl for 1 h with subsequent storage for one week. The ASD of glycine was prepared by ball milling α-glycine with an equal amount of CaCl2 for 1 h. We studied the effect of inorganic salt types and their concentrations on the extent of polymorph conversion and amorphization of glycine in our experiments. This solvent-free ball milling method could be used for the synthesis of polymorphs and amorphous phase of drugs and other organic materials.
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Affiliation(s)
- Fenghua Chen
- School of Resources and Chemical Engineering, Sanming University, Sanming 365004, Fujian, China.
| | - Nuo Man
- School of Resources and Chemical Engineering, Sanming University, Sanming 365004, Fujian, China
| | - Chenmei Yang
- School of Resources and Chemical Engineering, Sanming University, Sanming 365004, Fujian, China
| | - Renfen Cao
- School of Resources and Chemical Engineering, Sanming University, Sanming 365004, Fujian, China
| | - Yuezong Lian
- College of Architecture and Civil Engineering, Sanming University, Sanming 365004, Fujian, China
| | - Jian-Han Zhang
- School of Resources and Chemical Engineering, Sanming University, Sanming 365004, Fujian, China
| | - Wenzhong Lai
- School of Resources and Chemical Engineering, Sanming University, Sanming 365004, Fujian, China
| | - Rongrong Xue
- School of Resources and Chemical Engineering, Sanming University, Sanming 365004, Fujian, China.
| | - Yurong Ma
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
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34
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Ardila-Fierro KJ, Hernández JG. Sustainability Assessment of Mechanochemistry by Using the Twelve Principles of Green Chemistry. CHEMSUSCHEM 2021; 14:2145-2162. [PMID: 33835716 DOI: 10.1002/cssc.202100478] [Citation(s) in RCA: 164] [Impact Index Per Article: 54.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/07/2021] [Indexed: 05/22/2023]
Abstract
In recent years, mechanochemistry has been growing into a widely accepted alternative for chemical synthesis. In addition to their efficiency and practicality, mechanochemical reactions are also recognized for their sustainability. The association between mechanochemistry and Green Chemistry often originates from the solvent-free nature of most mechanochemical protocols, which can reduce waste production. However, mechanochemistry satisfies more than one of the Principles of Green Chemistry. In this Review we will present a series of examples that will clearly illustrate how mechanochemistry can significantly contribute to the fulfillment of Green Chemistry in a more holistic manner.
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Affiliation(s)
- Karen J Ardila-Fierro
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička c. 54, 10000, Zagreb, Croatia
| | - José G Hernández
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička c. 54, 10000, Zagreb, Croatia
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35
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Amrute AP, De Bellis J, Felderhoff M, Schüth F. Mechanochemical Synthesis of Catalytic Materials. Chemistry 2021; 27:6819-6847. [PMID: 33427335 PMCID: PMC8248068 DOI: 10.1002/chem.202004583] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Indexed: 12/02/2022]
Abstract
The mechanochemical synthesis of nanomaterials for catalytic applications is a growing research field due to its simplicity, scalability, and eco-friendliness. Besides, it provides materials with distinct features, such as nanocrystallinity, high defect concentration, and close interaction of the components in a system, which are, in most cases, unattainable by conventional routes. Consequently, this research field has recently become highly popular, particularly for the preparation of catalytic materials for various applications, ranging from chemical production over energy conversion catalysis to environmental protection. In this Review, recent studies on mechanochemistry for the synthesis of catalytic materials are discussed. Emphasis is placed on the straightforwardness of the mechanochemical route-in contrast to more conventional synthesis-in fabricating the materials, which otherwise often require harsh conditions. Distinct material properties achieved by mechanochemistry are related to their improved catalytic performance.
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Affiliation(s)
- Amol P. Amrute
- Department of Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
- Current address: Institute of Chemical and Engineering SciencesA*STAR1 Pesek RoadJurong Island627833 SingaporeSingapore
| | - Jacopo De Bellis
- Department of Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Michael Felderhoff
- Department of Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Ferdi Schüth
- Department of Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
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36
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Nie S, Yang S, Zhang P. Mechanochemical Redox: Calcination‐free Synthesis of Ceria‐hybrid Catalyst with Ultra‐High Surface Area. ChemCatChem 2021. [DOI: 10.1002/cctc.202100256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Siyang Nie
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Shize Yang
- Eyring Materials Center Arizona State University Tempe AZ 85287 USA
| | - Pengfei Zhang
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
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37
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Ye M, Li G, Liang J, Liao X, Ren J, Fen X, Qian W, Li L, Sun S. A high-efficiency process for the separation of chromium and aluminum from waste aluminum sludge with a high chromium content using a combined oxidation and dispersion process. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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The Hydrothermal Stability and the Properties of Non- and Strongly-Interacting Rh Species over Rh/γ, θ-Al2O3 Catalysts. Catalysts 2021. [DOI: 10.3390/catal11010099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The present work reports the effects of γ-, θ-phase of alumina on the hydrothermal stability and the properties of non- and strongly-interacting Rh species of the Rh/Al2O3 catalysts. Comparing to γ-Al2O3, θ-Al2O3 can not only reduce the amount of occluded Rh but also better stabilize Rh during hydrothermal aging treatment. When the aging time was prolonged to 70 h, all the non-interacting Rh was transformed into strongly-interacting Rh and occluded Rh. The XPS results indicated that non- and strongly-interacting Rh might exist in the form of Rh/Rh3+ and Rh4+, respectively. CO-NO reaction was chosen as a probe reaction to research more information about non- and strongly-interacting Rh. The two Rh species had similar apparent activation energy (Eapp) of 170 kJ/mol, which indicated that non- and strongly-interacting Rh follow the same reaction path. The non-interacting Rh was removed from aged samples by the acid-treated method, and obtained results showed that only 2.5% and 4.0% non-interacting Rh was maintained in aged Rh/γ-Al2O3 and Rh/θ-Al2O3.
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Wakabayashi R. Accelerated crystallization of mesoporous Al 2O 3 powder recovered by spray-drying with a large amount of heated air. NEW J CHEM 2021. [DOI: 10.1039/d1nj01488a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Crystallization into α-Al2O3 was accelerated with a large amount of heated air during spray-drying to recover mesoporous Al2O3 powders.
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Affiliation(s)
- Ryutaro Wakabayashi
- Innovative Functional Materials Research Institute
- National Institute of Advanced Industrial Science and Technology (AIST)
- Shimoshidami
- Moriyama-ku
- Nagoya 463-8560
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40
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Zhou S, Zhang C, Li Y, Shao B, Luo Y, Shu X. A facile way to improve zeolite Y-based catalysts' properties and performance in the isobutane-butene alkylation reaction. RSC Adv 2020; 10:29068-29076. [PMID: 35521147 PMCID: PMC9055940 DOI: 10.1039/d0ra03762a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 05/30/2020] [Indexed: 11/21/2022] Open
Abstract
Different amounts of SiO2 were added to the Al2O3 binders to investigate the binder effect on zeolite Y-based catalysts. The added SiO2 improved the mesopore volume and acidity of the catalysts. Characterization results showed that the catalysts' acid amount increased with increasing the SiO2 amount in the binder, which achieved maximum value when 12% SiO2 was added to the binder. The doped SiO2 in Al2O3 binders improved the Al2O3 phase transformation temperature, which is crucial for Al species to break out of the phase energy and migrate into the zeolite. The lifetime of catalyst Y-Al2O3-12SiO2 is 3.7 times higher than that of Y-Al2O3-0SiO2, and the selectivity of the target products simultaneously improved by 7 percentage point. This work should bring some inspiration to the design and application of zeolite-based catalysts.
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Affiliation(s)
- Shunli Zhou
- State Key Laboratory of Catalytic Material and Reaction Engineering, Research Institute of Petroleum Processing, Sinopec Beijing 100083 China
| | - Chengxi Zhang
- State Key Laboratory of Catalytic Material and Reaction Engineering, Research Institute of Petroleum Processing, Sinopec Beijing 100083 China
| | - Yongxiang Li
- State Key Laboratory of Catalytic Material and Reaction Engineering, Research Institute of Petroleum Processing, Sinopec Beijing 100083 China
| | - Bingzhang Shao
- State Key Laboratory of Catalytic Material and Reaction Engineering, Research Institute of Petroleum Processing, Sinopec Beijing 100083 China
| | - Yibin Luo
- State Key Laboratory of Catalytic Material and Reaction Engineering, Research Institute of Petroleum Processing, Sinopec Beijing 100083 China
| | - Xingtian Shu
- State Key Laboratory of Catalytic Material and Reaction Engineering, Research Institute of Petroleum Processing, Sinopec Beijing 100083 China
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41
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Yang S, Powell M, Kolis JW, Navrotsky A. Thermochemistry of rare earth oxyhydroxides, REOOH (RE = Eu to Lu). J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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42
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Solvent-free synthesis of mesoporous platinum-aluminum oxide via mechanochemistry: Toward selective hydrogenation of nitrobenzene to aniline. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115619] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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43
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Li J, Pu S, Cao W, Li L, Guo R. Comment on "High-surface-area corundum by mechanochemically induced phase transformation of boehmite". Science 2020; 368:368/6494/eabb0142. [PMID: 32467360 DOI: 10.1126/science.abb0142] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 05/06/2020] [Indexed: 11/02/2022]
Abstract
Amrute et al (Reports, 25 October 2019, p. 485) claimed that no methods were able to produce high-purity α-Al2O3 with surface areas greater than 100 m2 g-1, even though much higher surface areas up to 253 m2 g-1 have been reported. Moreover, the materials they obtained could be porous aggregates and may not be 13-nm nanoparticles, as claimed.
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Affiliation(s)
- Jiangong Li
- Institute of Materials Science and Engineering, Lanzhou University, Lanzhou 730000, China.
| | - Sanxu Pu
- Institute of Materials Science and Engineering, Lanzhou University, Lanzhou 730000, China
| | - Wenbin Cao
- Institute of Materials Science and Engineering, Lanzhou University, Lanzhou 730000, China
| | - Lu Li
- Institute of Materials Science and Engineering, Lanzhou University, Lanzhou 730000, China
| | - Ruiyun Guo
- Institute of Materials Science and Engineering, Lanzhou University, Lanzhou 730000, China
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Amrute AP, Łodziana Z, Schreyer H, Weidenthaler C, Schüth F. Response to Comment on "High-surface-area corundum by mechanochemically induced phase transformation of boehmite". Science 2020; 368:368/6494/eabb0948. [PMID: 32467361 DOI: 10.1126/science.abb0948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/06/2020] [Indexed: 11/02/2022]
Abstract
Li et al commented that our report claims that methods reported thus far cannot enable the production of high-purity corundum with surface areas greater than 100 m2 g-1, and that our obtained material could be porous aggregates rather than nanoparticles. We disagree with both of these suggestions.
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Affiliation(s)
- Amol P Amrute
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim an der Ruhr, Germany.
| | | | - Hannah Schreyer
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim an der Ruhr, Germany
| | - Claudia Weidenthaler
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim an der Ruhr, Germany
| | - Ferdi Schüth
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim an der Ruhr, Germany.
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Liu Y, Huo J, Guo J, Lu L, Shen Z, Chen W, Liu C, Liu H. Hierarchical Porous Molybdenum Carbide Based Nanomaterials for Electrocatalytic Hydrogen Production. Front Chem 2020; 8:426. [PMID: 32509734 PMCID: PMC7248382 DOI: 10.3389/fchem.2020.00426] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 04/23/2020] [Indexed: 02/04/2023] Open
Abstract
The electrocatalytic hydrogen evolution reaction (HER) for the preparation of hydrogen fuel is a very promising technology to solve the shortage of hydrogen storage. However, in practical applications, HER catalysts with excellent performance and moderate price are very rare. Molybdenum carbide (MoxC) has attracted extensive attention due to its electronic structure and natural abundance. Here, a comprehensive review of the preparation and performance control of hierarchical porous molybdenum carbide (HP-MoxC) based catalysts is summarized. The methods for preparing hierarchical porous materials and the regulation of their HER performance are mainly described. Briefly, the HP-MoxC based catalysts were prepared by template method, morphology-conserved transformations method, and secondary conversion method of an organic-inorganic hybrid material. The intrinsic HER kinetics are enhanced by the introduction of a carbon-based support, heteroatom doping, and the construction of a heterostructure. Finally, the future development of HP-MoxC based catalysts is prospected in this review.
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Affiliation(s)
- Yan Liu
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Juanjuan Huo
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Jiaojiao Guo
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Li Lu
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Ziyan Shen
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Weihua Chen
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou, China
| | - Chuntai Liu
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou, China
| | - Hao Liu
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China.,Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
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Zhao LY, Dong XL, Lu AH. Mechanochemical Synthesis of Porous Carbons and Their Applications in Catalysis. Chempluschem 2020; 85:866-875. [PMID: 32378808 DOI: 10.1002/cplu.202000191] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/28/2020] [Indexed: 11/08/2022]
Abstract
Porous carbons have shown considerable potential in catalysis as either as supports or metal-free catalysts. Various methods based on solution chemistry have been intensively developed for the preparation of porous carbon-based catalysts with controllable morphology, pore structure, surface chemical property as well as the desired active sites. Nowadays, mechanochemical synthesis, a re-emerging strategy, has become more and more popular in the synthesis of porous carbons, due to its feasibility and high synthetic efficiency under solvent-free condition. This Minireview presents recent advances in the mechanochemical synthesis of porous carbons by ball milling, and their applications in catalysis. It starts a brief introduction of the characteristics and work mechanism of ball milling, and then discuss the preparation of porous carbons as metal-free catalysts and carbon-supported metal catalysts. Finally, some issues and further opportunities for the mechanochemical synthesis of porous carbon-based catalysts are proposed and discussed.
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Affiliation(s)
- Li-Yuan Zhao
- State Key Laboratory of Fine Chemicals Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Xiao-Ling Dong
- State Key Laboratory of Fine Chemicals Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - An-Hui Lu
- State Key Laboratory of Fine Chemicals Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
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Wei Y, Chen J, Wang S, Zhong X, Xiong R, Gan L, Ma Y, Zhai T, Li H. Wrapping Sb 2Te 3 with a Graphite Layer toward High Volumetric Energy and Long Cycle Li-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2020; 12:16264-16275. [PMID: 32069397 DOI: 10.1021/acsami.9b22346] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Many recent efforts on the electrode design for advanced Li-ion batteries (LIBs) are often devoted to increasing the gravimetric capacity, but little attention is paid to the volumetric capacity which is more critical for practical application. Though the alloying-type anode materials are quite attractive, the challenge is that they must be composited with a large amount of carbon materials (e.g., GO, rGO, CNT) to buffer their large volume change, which would undoubtedly sacrifice the volumetric energy density of the whole electrode due to the carbon's low tap density (∼0.05 g/cm3). Herein, we propose the unique layered Sb2Te3, which possesses high conductivity and a large volumetric capacity (3419 mAh/cm3), to be served as the alternative anode for LIBs. Furthermore, we introduce natural graphite, which is low price and with high density (2.25 g/cm3), into Sb2Te3 to successfully build a novel Sb2Te3@Gra composite in which the Sb2Te3 particles are wrapped by graphite layers. Interestingly, this modified Sb2Te3@Gra exhibits much more superior cycle stability (570 mAh/g after 200 cycles, 96% retention) than pure Sb2Te3 (130 mAh/g after 200 cycles, 22% retention), while keeping its original large volumetric capacity output (∼3200 mAh/cm3) at the same time. More specially, it enables a reversible structure recovery of Sb2Te3, guaranteeing the electrode integrity and cyclability. These extraordinary phenomena are investigated in detail, whose results display that the outer graphite layer plays an important role by facilitating the intimate contact with Sb2Te3 particles and protecting them from pulverization. Besides, such graphite layer greatly promotes the electron-transfer during lithiation, helping to improve the rate capability (372 mAh/g at 2000 mA/g, 60% retention). Consequently, the assembled Sb2Te3//LiCoO2 full cell delivers a large capacity of 500 mAh/g, with stable discharge plateau and cycle stability, revealing its high potential for practical application.
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Affiliation(s)
- Yaqing Wei
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, Hubei P. R. China
| | - Jiajun Chen
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, Hubei P. R. China
| | - Siqi Wang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, Hubei P. R. China
| | - Xingguo Zhong
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, Hubei P. R. China
| | - Rundi Xiong
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, Hubei P. R. China
| | - Lin Gan
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, Hubei P. R. China
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 518057, Guangdong, P. R. China
| | - Ying Ma
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, Hubei P. R. China
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 518057, Guangdong, P. R. China
| | - Tianyou Zhai
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, Hubei P. R. China
| | - Huiqiao Li
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, Hubei P. R. China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, P. R. China
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Daelman N, Hegner FS, Rellán-Piñeiro M, Capdevila-Cortada M, García-Muelas R, López N. Quasi-degenerate states and their dynamics in oxygen deficient reducible metal oxides. J Chem Phys 2020; 152:050901. [PMID: 32035446 DOI: 10.1063/1.5138484] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The physical and chemical properties of oxides are defined by the presence of oxygen vacancies. Experimentally, non-defective structures are almost impossible to achieve due to synthetic constraints. Therefore, it is crucial to account for vacancies when evaluating the characteristics of these materials. The electronic structure of oxygen-depleted oxides deeply differs from that of the native forms, in particular, of reducible metal oxides, where excess electrons can localize in various distinct positions. In this perspective, we present recent developments from our group describing the complexity of these defective materials that highlight the need for an accurate description of (i) intrinsic vacancies in polar terminations, (ii) multiple geometries and complex electronic structures with several states attainable at typical working conditions, and (iii) the associated dynamics for both vacancy diffusion and the coexistence of more than one electronic structure. All these aspects widen our current understanding of defects in oxides and need to be adequately introduced in emerging high-throughput screening methodologies.
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Affiliation(s)
- Nathan Daelman
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, BIST, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Franziska Simone Hegner
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, BIST, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Marcos Rellán-Piñeiro
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, BIST, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Marçal Capdevila-Cortada
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, BIST, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Rodrigo García-Muelas
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, BIST, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Núria López
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, BIST, Av. Països Catalans 16, 43007 Tarragona, Spain
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Huang W, Liu G, Qi T, Li X, Zhou Q, Peng Z. Effects of pH and ions on the morphological evolution of boehmite prepared by hydrothermal treatment of ultrafine Bayer gibbsite. CrystEngComm 2020. [DOI: 10.1039/d0ce00808g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Boehmite morphology depended on the pH and ions of the solution by hydrothermal treatment of gibbsite owing to the difference in nucleation and growth of boehmite from Al3+, Al(OH)4− or the Al(OH)4−Na+ ion pair.
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Affiliation(s)
- Wenqiang Huang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P.R. China
| | - Guihua Liu
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P.R. China
| | - Tiangui Qi
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P.R. China
| | - Xiaobin Li
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P.R. China
| | - Qiusheng Zhou
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P.R. China
| | - Zhihong Peng
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- P.R. China
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50
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Affiliation(s)
- Hesheng Xia
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Zhenhua Wang
- Institute of Flexible Electronics, Institute of Biomedical Materials and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
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