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Szamosvölgyi Á, Pitó Á, Efremova A, Baán K, Kutus B, Suresh M, Sápi A, Szenti I, Kiss J, Kolonits T, Fogarassy Z, Pécz B, Kukovecz Á, Kónya Z. Optimized Pt-Co Alloy Nanoparticles for Reverse Water-Gas Shift Activation of CO 2. ACS APPLIED NANO MATERIALS 2024; 7:9968-9977. [PMID: 38752020 PMCID: PMC11091851 DOI: 10.1021/acsanm.4c00111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 03/26/2024] [Accepted: 04/11/2024] [Indexed: 05/18/2024]
Abstract
Different Co contents were used to tune bimetallic Pt-Co nanoparticles with a diameter of 8 nm, resulting in Pt:Co ratios of 3.54, 1.51, and 0.96. These nanoparticles were then applied to the MCF-17 mesoporous silica support. The synthesized materials were characterized with HR-TEM, HAADF-TEM, EDX, XRD, BET, ICP-MS, in situ DRIFTS, and quasi in situ XPS techniques. The catalysts were tested in a thermally induced reverse water-gas shift reaction (CO2:H2 = 1:4) at atmospheric pressure in the 200-700 °C temperature range. All bimetallic Pt-Co particles outperformed the pure Pt benchmark catalyst. The nanoparticles with a Pt:Co ratio of 1.51 exhibited 2.6 times higher activity and increased CO selectivity by 4% at 500 °C. Experiments proved that the electron accumulation and alloying effect on the Pt-Co particles are stronger with higher Co ratios. The production of CO followed the formate reaction pathway on all catalysts due to the face-centered-cubic structure, which is similar to the Pt benchmark. It is concluded that the enhanced properties of Co culminate at a Pt:Co ratio of 1.51 because decreasing the ratio to 0.96 results in lower activity despite having more Co atoms available for the electronic interaction, resulting in the lack of electron-rich Pt sites.
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Affiliation(s)
- Ákos Szamosvölgyi
- Interdisciplinary
Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - Ádám Pitó
- Interdisciplinary
Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - Anastasiia Efremova
- Interdisciplinary
Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - Kornélia Baán
- Interdisciplinary
Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - Bence Kutus
- Department
of Molecular and Analytical Chemistry, University
of Szeged, Dóm
tér 7−8, Szeged H-6720, Hungary
| | - Mutyala Suresh
- Interdisciplinary
Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - András Sápi
- Interdisciplinary
Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - Imre Szenti
- Interdisciplinary
Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
- HUN-REN-SZTE
Reaction Kinetics and Surface Chemistry Research Group, Szeged,H-6720, Hungary
| | - János Kiss
- Interdisciplinary
Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
- HUN-REN-SZTE
Reaction Kinetics and Surface Chemistry Research Group, Szeged,H-6720, Hungary
| | - Tamás Kolonits
- HUN-REN
Centre for Energy Research, Institute of
Technical Physics and Materials Science, Budapest H-1121, Hungary
| | - Zsolt Fogarassy
- HUN-REN
Centre for Energy Research, Institute of
Technical Physics and Materials Science, Budapest H-1121, Hungary
| | - Béla Pécz
- HUN-REN
Centre for Energy Research, Institute of
Technical Physics and Materials Science, Budapest H-1121, Hungary
| | - Ákos Kukovecz
- Interdisciplinary
Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
| | - Zoltán Kónya
- Interdisciplinary
Excellence Centre, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary
- HUN-REN-SZTE
Reaction Kinetics and Surface Chemistry Research Group, Szeged,H-6720, Hungary
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Yao Z, Xu S, Zhang X, Zhu J, Liao P, Yuan J, Rong C, Liu X, Xiong Z, Kang S, Kuang F. Co/CeO 2/C composites derived from bimetallic metal-organic frameworks for efficient microwave absorption. Dalton Trans 2023; 52:12632-12645. [PMID: 37615584 DOI: 10.1039/d3dt02036c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
CeO2, an n-type semiconductor material, has been widely used in microwave absorption (MA) due to its unique structural features such as oxygen vacancies and interstitial atoms. In this paper, Co/CeO2/C composites were prepared by a hydrothermal method followed by a pyrolysis process. The effect of different pyrolysis temperatures (650-950 °C) on the MA property of the composites was investigated. When the pyrolysis temperature was 850 °C, the Co/CeO2/C-850 composite exhibited outstanding MA behavior in the frequency range of 2-18 GHz, displaying a minimum reflection loss (RLmin) of -45.22 dB and an effective absorption bandwidth (EAB) of 4.61 GHz at a thin thickness of 1.75 mm. The MA performance of the Co/CeO2/C composites is mainly attributed to the dielectric loss due to interfacial polarization originating from different interfaces and dipole polarization caused by the oxygen vacancies in CeO2. In addition, the introduction of Co nanoparticles not only provides the magnetic loss but also modulates impendence matching for the current magnetoelectric coupling system.
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Affiliation(s)
- Zhiqian Yao
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
| | - Suqiong Xu
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
| | - Xianke Zhang
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
| | - Jiawei Zhu
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
| | - Peng Liao
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
| | - Jujun Yuan
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
| | - Chuicai Rong
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
| | - Xiaoqing Liu
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
| | - Zuzhou Xiong
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
| | - Shuying Kang
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
| | - Fangguang Kuang
- School of Physics and Electronics, Gannan Normal University, Ganzhou 341000, China.
- Advanced Energy Storage and Photoelectric Materials Research Center, Gannan Normal University, Ganzhou 341000, China
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3
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Mamontova E, Trabbia C, Favier I, Serrano-Maldonado A, Ledeuil JB, Madec L, Gómez M, Pla D. Novel Catalyst Composites of Ni- and Co-Based Nanoparticles Supported on Inorganic Oxides for Fatty Acid Hydrogenations. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091435. [PMID: 37176980 PMCID: PMC10180328 DOI: 10.3390/nano13091435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023]
Abstract
In the quest to develop nanometrically defined catalytic systems for applications in the catalytic valorization of agri-food wastes, small Ni-based nanoparticles supported on inorganic solid supports have been prepared by decomposition of organometallic precursors in refluxing ethanol under H2 atmosphere, in the presence of supports exhibiting insulating or semi-conductor properties, such as MgAl2O4 and TiO2, respectively. The efficiency of the as-prepared Ni-based nanocomposites has been evaluated towards the hydrogenation of unsaturated fatty acids under solvent-free conditions, with high selectivity regarding the hydrogenation of C=C bonds. The influence of the support on the catalytic performance of the prepared Ni-based nanocomposites is particularly highlighted.
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Affiliation(s)
- Ekaterina Mamontova
- Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université Toulouse III-Paul Sabatier, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Corine Trabbia
- Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université Toulouse III-Paul Sabatier, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Isabelle Favier
- Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université Toulouse III-Paul Sabatier, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Alejandro Serrano-Maldonado
- Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université Toulouse III-Paul Sabatier, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Jean-Bernard Ledeuil
- E2S UPPA, CNRS, IPREM, Université de Pau et des Pays de l'Adour, 64053 Pau, France
| | - Lénaïc Madec
- E2S UPPA, CNRS, IPREM, Université de Pau et des Pays de l'Adour, 64053 Pau, France
| | - Montserrat Gómez
- Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université Toulouse III-Paul Sabatier, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Daniel Pla
- Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université Toulouse III-Paul Sabatier, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
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Khaliq A, Nazir R, Khan M, Rahim A, Asad M, Shah M, Khan M, Ullah R, Ali EA, Khan A, Nishan U. Co-Doped CeO 2/Activated C Nanocomposite Functionalized with Ionic Liquid for Colorimetric Biosensing of H 2O 2 via Peroxidase Mimicking. Molecules 2023; 28:molecules28083325. [PMID: 37110559 PMCID: PMC10145388 DOI: 10.3390/molecules28083325] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Hydrogen peroxide acts as a byproduct of oxidative metabolism, and oxidative stress caused by its excess amount, causes different types of cancer. Thus, fast and cost-friendly analytical methods need to be developed for H2O2. Ionic liquid (IL)-coated cobalt (Co)-doped cerium oxide (CeO2)/activated carbon (C) nanocomposite has been used to assess the peroxidase-like activity for the colorimetric detection of H2O2. Both activated C and IL have a synergistic effect on the electrical conductivity of the nanocomposites to catalyze the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB). The Co-doped CeO2/activated C nanocomposite has been synthesized by the co-precipitation method and characterized by UV-Vis spectrophotometry, FTIR, SEM, EDX, Raman spectroscopy, and XRD. The prepared nanocomposite was functionalized with IL to avoid agglomeration. H2O2 concentration, incubation time, pH, TMB concentration, and quantity of the capped nanocomposite were tuned. The proposed sensing probe gave a limit of detection of 1.3 × 10-8 M, a limit of quantification of 1.4 × 10-8 M, and an R2 of 0.999. The sensor gave a colorimetric response within 2 min at pH 6 at room temperature. The co-existing species did not show any interference during the sensing probe. The proposed sensor showed high sensitivity and selectivity and was used to detect H2O2 in cancer patients' urine samples.
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Affiliation(s)
- Abdul Khaliq
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Ruqia Nazir
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Muslim Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Abdur Rahim
- Department of Chemistry, COMSATS University Islamabad, Park Road, Islamabad 45550, Pakistan
| | - Muhammad Asad
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Mohibullah Shah
- Department of Biochemistry, Bahauddin Zakariya University, Multan 66000, Pakistan
| | - Mansoor Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Riaz Ullah
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Essam A Ali
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ajmir Khan
- School of Packaging, 448 Wilson Road, Michigan State University, East Lansing, MI 48824, USA
| | - Umar Nishan
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Pakistan
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5
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He H, Miao C, Guo H, Hua W, Yue Y, Gao Z. Ethane dehydrogenation over Co-based MOR zeolites. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02231-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Hydrogen production from ammonia decomposition over Ni/CeO2 catalyst: Effect of CeO2 morphology. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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7
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Neethu PP, Aswin P, Sreenavya A, Nimisha S, Aswathi PS, Sakthivel A. Ruthenium on α-Ni(OH)2 as potential catalyst for anisole hydrotreating and cinnamyl alcohol oxidation. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02211-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Shen K, Jiang M, Yang X, Zhou W, Dai Q, Wang X, Wang L, Guo Y, Guo Y, Zhan W. Low-temperature catalytic combustion of trichloroethylene over MnO -CeO2 mixed oxide catalysts. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Nature of the Pt-Cobalt-Oxide surface interaction and its role in the CO2 Methanation. APPLIED SURFACE SCIENCE 2022. [DOI: 10.1016/j.apsusc.2021.151326] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Chen M, Gupta G, Ordonez CW, Lamkins AR, Ward CJ, Abolafia CA, Zhang B, Roling LT, Huang W. Intermetallic Nanocatalyst for Highly Active Heterogeneous Hydroformylation. J Am Chem Soc 2021; 143:20907-20915. [PMID: 34859675 DOI: 10.1021/jacs.1c09665] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Hydroformylation is an imperative chemical process traditionally catalyzed by homogeneous catalysts. Designing a heterogeneous catalyst with high activity and selectivity in hydroformylation is challenging but essential to allow the convenient separation and recycling of precious catalysts. Here, we report the development of an outstanding catalyst for efficient heterogeneous hydroformylation, RhZn intermetallic nanoparticles. In the hydroformylation of styrene, it shows three times higher turnover frequency (3090 h-1) compared to the benchmark homogeneous Wilkinson's catalyst (966 h-1), as well as a high chemoselectivity toward aldehyde products. RhZn is active for a variety of olefin substrates and can be recycled without a significant loss of activity. Density functional theory calculations show that the RhZn surfaces reduce the binding strength of reaction intermediates and have lower hydroformylation activation energy barriers compared to pure Rh(111), leading to more favorable reaction energetics on RhZn. The calculations also predict potential catalyst design strategies to achieve high regioselectivity.
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Affiliation(s)
- Minda Chen
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Geet Gupta
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Claudio W Ordonez
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Andrew R Lamkins
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Charles J Ward
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Celia A Abolafia
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Biying Zhang
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Luke T Roling
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Wenyu Huang
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
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11
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Malik AS, Zaman SF, Al-Zahrani AA, Daous MA. Turning CO2 into di-methyl ether (DME) using Pd based catalysts – Role of Ca in tuning the activity and selectivity. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.07.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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12
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Marinho AL, Rabelo-Neto RC, Epron F, Bion N, Noronha FB, Toniolo FS. Pt nanoparticles embedded in CeO2 and CeZrO2 catalysts for biogas upgrading: Investigation on carbon removal mechanism by oxygen isotopic exchange and DRIFTS. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Hydrogen Yield from CO2 Reforming of Methane: Impact of La2O3 Doping on Supported Ni Catalysts. ENERGIES 2021. [DOI: 10.3390/en14092412] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Development of a transition metal based catalyst aiming at concomitant high activity and stability attributed to distinguished catalytic characteristics is considered as the bottleneck for dry reforming of methane (DRM). This work highlights the role of modifying zirconia (ZrO2) and alumina (Al2O3) supported nickel based catalysts using lanthanum oxide (La2O3) varying from 0 to 20 wt% during dry reforming of methane. The mesoporous catalysts with improved BET surface areas, improved dispersion, relatively lower reduction temperatures and enhanced surface basicity are identified after La2O3 doping. These factors have influenced the catalytic activity and higher hydrogen yields are found for La2O3 modified catalysts as compared to base catalysts (5 wt% Ni-ZrO2 and 5 wt% Ni-Al2O3). Post-reaction characterizations such as TGA have showed less coke formation over La2O3 modified samples. Raman spectra indicates decreased graphitization for La2O3 catalysts. The 5Ni-10La2O3-ZrO2 catalyst produced 80% hydrogen yields, 25% more than that of 5Ni-ZrO2. 5Ni-15La2O3-Al2O3 gave 84% hydrogen yields, 8% higher than that of 5Ni-Al2O3. Higher CO2 activity improved the surface carbon oxidation rate. From the study, the extent of La2O3 loading is dependent on the type of oxide support.
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14
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Alabdullah M, Ibrahim M, Dhawale D, Bau JA, Harale A, Katikaneni S, Gascon J. Rhodium Nanoparticle Size Effects on the CO
2
Reforming of Methane and Propane. ChemCatChem 2021. [DOI: 10.1002/cctc.202100063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mohammed Alabdullah
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Mahmoud Ibrahim
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Dattatray Dhawale
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Jeremy A. Bau
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Aadesh Harale
- Carbon Management R&D Research and Development Center Saudi Aramco Dhahran 31311 Saudi Arabia
| | - Sai Katikaneni
- Carbon Management R&D Research and Development Center Saudi Aramco Dhahran 31311 Saudi Arabia
| | - Jorge Gascon
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
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15
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Sadiq S, Sadiq M, Saeed K, Rehman NU, Ali Q. Correlation of thermal conductivity with the catalytic activity of nanoparticles: the oxidation of benzyl alcohol. REACTION KINETICS MECHANISMS AND CATALYSIS 2020. [DOI: 10.1007/s11144-020-01784-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Al-Shehri BM, Shkir M, Khder AS, Kaushik A, Hamdy MS. Noble Metal Nanoparticles Incorporated Siliceous TUD-1 Mesoporous Nano-Catalyst for Low-Temperature Oxidation of Carbon Monoxide. NANOMATERIALS 2020; 10:nano10061067. [PMID: 32486262 PMCID: PMC7352551 DOI: 10.3390/nano10061067] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 11/16/2022]
Abstract
This report, for the first time, demonstrated the low-temperature oxidation of carbon monoxide (CO) using nano-catalysts consisting of noble metal nanoparticles incorporated in TUD-1 mesoporous silica nano-structures synthesized via a one-pot surfactant-free sol–gel synthesis methodology. Herein, we investigated a nano-catalyst, represented as M-TUD-1 (M = Rh, Pd, Pt and Au), which was prepared using a constant Si/M ratio of 100. The outcome of the analytical studies confirmed the formation of a nano-catalyst ranging from 5 to 10 nm wherein noble metal nanoparticles were distributed uniformly onto the mesopores of TUD-1. The catalytic performance of M-TUD-1 catalysts was examined in the environmentally impacted CO oxidation reaction to CO2. The catalytic performance of Au-TUD-1 benchmarked other M-TUD-1 catalysts and a total conversion of CO was obtained at 303 K. The activity of the other nano-catalysts was obtained as Pt-TUD-1 > Pd-TUD-1 > Rh-TUD-1, with a total CO conversion at temperatures of 308, 328 and 348 K, respectively. The Au-TUD-1 exhibited a high stability and reusability as indicated by the observed high activity after ten continuous runs without any treatment. The outcomes of this research suggested that M-TUD-1 are promising nano-catalysts for the removal of the toxic CO gas and can also potentially be useful to protect the environment where a long-life time, cost-effectiveness and industrial scaling-up are the key approaches.
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Affiliation(s)
- Badria M. Al-Shehri
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
- Chemistry Department, College of Science, Umm Al-Qura University, Makkah 21421, Saudi Arabia;
| | - Mohd Shkir
- Advanced Functional Materials and Optoelectronics Laboratory (AFMOL), Department of Physics, College of Science, King Khalid University, Abha 61413, Saudi Arabia;
| | - A. S. Khder
- Chemistry Department, College of Science, Umm Al-Qura University, Makkah 21421, Saudi Arabia;
| | - Ajeet Kaushik
- NanoBioTech Laboratory, Department of Natural Sciences, Division of Sciences, Art and Mathematics, Florida Polytechnic University, Lakeland, FL 33805, USA
- Correspondence: (A.K.); (M.S.H.); Tel.: +966-1724-18892 (M.S.H.)
| | - Mohamed S. Hamdy
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
- Correspondence: (A.K.); (M.S.H.); Tel.: +966-1724-18892 (M.S.H.)
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17
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Combining Exsolution and Infiltration for Redox, Low Temperature CH4 Conversion to Syngas. Catalysts 2020. [DOI: 10.3390/catal10050468] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Exsolution of surface and bulk nanoparticles in perovskites has been recently employed in chemical looping methane partial oxidation because of the emergent materials’ properties such as oxygen capacity, redox stability, durability, coke resistance and enhanced activity. Here we attempt to further lower the temperature of methane conversion by complementing exsolution with infiltration. We prepare an endo/exo-particle system using exsolution and infiltrate it with minimal amount of Rh (0.1 wt%) in order to functionalize the surface and induce low temperature activity. We achieve a temperature decrease by almost 220 °C and an increase of the activity up to 40%. We also show that the initial microstructure of the perovskite plays a key role in controlling nanoparticle anchorage and carbon deposition. Our results demonstrate that microstructure tuning and surface functionalization are important aspects to consider when designing materials for redox cycling applications.
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18
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Asokan C, Thang HV, Pacchioni G, Christopher P. Reductant composition influences the coordination of atomically dispersed Rh on anatase TiO2. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00146e] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Distinct local environments for atomically dispersed Rh species on anatase TiO2 result from reduction treatments under CO and H2.
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Affiliation(s)
- Chithra Asokan
- Department of Chemical Engineering
- University of California Santa Barbara
- Santa Barbara
- USA
| | - Ho Viet Thang
- Dipartimento di Scienza dei Materiali
- Università di Milano-Bicocca
- 20125 Milano
- Italy
- The University of Da-Nang
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali
- Università di Milano-Bicocca
- 20125 Milano
- Italy
| | - Phillip Christopher
- Department of Chemical Engineering
- University of California Santa Barbara
- Santa Barbara
- USA
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19
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Kauppinen MM, Melander MM, Honkala K. First-principles insight into CO hindered agglomeration of Rh and Pt single atoms on m-ZrO 2. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00413h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Kinetic and thermodynamic stability of single-atom and nanocluster catalysts is addressed under reaction conditions within a DFT-parametrised multi-scale thermodynamic framework combining atomistic, non-equilibrium, and nanothermodynamics.
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Affiliation(s)
| | - Marko M. Melander
- Department of Chemistry
- Nanoscience Center
- University of Jyväskylä
- Finland
| | - Karoliina Honkala
- Department of Chemistry
- Nanoscience Center
- University of Jyväskylä
- Finland
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20
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Sun X, Jian Y, Wang H, Ge S, Yan M, Yu J. Ultrasensitive Microfluidic Paper-Based Electrochemical Biosensor Based on Molecularly Imprinted Film and Boronate Affinity Sandwich Assay for Glycoprotein Detection. ACS APPLIED MATERIALS & INTERFACES 2019; 11:16198-16206. [PMID: 30892007 DOI: 10.1021/acsami.9b02005] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this work, we proposed a strategy that combined molecularly imprinted polymers (MIPs) and hybridization chain reaction into microfluidic paper-based analytical devices for ultrasensitive detection of target glycoprotein ovalbumin (OVA). During the fabrication, Au nanorods with a large surface area and superior conductibility were grown on paper cellulosic fiber as a matrix to introduce a boronate affinity sandwich assay. The composite of MIPs including 4-mercaptophenylboronic acid (MPBA) was able to capture target glycoprotein OVA. SiO2@Au nanocomposites labeled MPBA and cerium dioxide (CeO2)-modified nicked DNA double-strand polymers (SiO2@Au/dsDNA/CeO2) as a signal tag were captured into the surface of the electrode in the presence of OVA. An electrochemical signal was generated by using nanoceria as redox-active catalytic amplifiers in the presence of 1-naphthol in electrochemical assays. As a result, the electrochemical assay was fabricated and could be applied in the detection of OVA in the wide linear range of 1 pg/mL to 1000 ng/mL with a relatively low detection limit of 0.87 pg/mL (S/N = 3). The results indicated that the proposed platform possessed potential applications in clinical diagnosis and other related fields.
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Affiliation(s)
- Xiaolu Sun
- Shandong Collaborative Innovation Center of Technology and Equipements for Biological Diagnosis and Therapy, Institute for Advanced Interdisciplinary Research , University of Jinan , Jinan 250022 , P.R. China
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P.R. China
| | - Yannan Jian
- Shandong Collaborative Innovation Center of Technology and Equipements for Biological Diagnosis and Therapy, Institute for Advanced Interdisciplinary Research , University of Jinan , Jinan 250022 , P.R. China
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P.R. China
| | - He Wang
- Shandong Collaborative Innovation Center of Technology and Equipements for Biological Diagnosis and Therapy, Institute for Advanced Interdisciplinary Research , University of Jinan , Jinan 250022 , P.R. China
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P.R. China
| | - Shenguang Ge
- Shandong Collaborative Innovation Center of Technology and Equipements for Biological Diagnosis and Therapy, Institute for Advanced Interdisciplinary Research , University of Jinan , Jinan 250022 , P.R. China
| | - Mei Yan
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P.R. China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , P.R. China
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21
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Campos CH, Pecchi G, Fierro JLG, Osorio-Vargas P. Enhanced bimetallic Rh-Ni supported catalysts on alumina doped with mixed lanthanum-cerium oxides for ethanol steam reforming. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.03.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Zhong H, Wang J, Guo S, Fang K, Liu Y. Mutual Tailored Bimetallic Rh–Co Supported on La Modified SiO 2 for Direct Ethanol Synthesis from Syngas. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05474] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Huixian Zhong
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jiaming Wang
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Shaoxia Guo
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Kegong Fang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyun 030032, China
| | - Yuan Liu
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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23
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Liu Y, Zhang L, Göltl F, Ball MR, Hermans I, Kuech TF, Mavrikakis M, Dumesic JA. Synthesis Gas Conversion over Rh-Mn-WxC/SiO2 Catalysts Prepared by Atomic Layer Deposition. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02461] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yifei Liu
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Lifeng Zhang
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Florian Göltl
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Madelyn R. Ball
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Ive Hermans
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
- Department of Chemistry, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Thomas F. Kuech
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Manos Mavrikakis
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - James A. Dumesic
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
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24
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Pászti Z, Hakkel O, Szíjjártó GP, Tompos A. Adsorption and transformations of ethanol over ceria based model catalysts. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.01.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Ohyama J, Nishiyama T, Satsuma A. Formation of Rhodium Metal Ensembles that Facilitate Nitric Oxide Reduction over Rhodium/Ceria in a Stoichiometric Nitric Oxide-Carbon Monoxide-Propene-Oxygen Reaction. ChemCatChem 2018. [DOI: 10.1002/cctc.201701842] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Junya Ohyama
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa-ku Nagoya 464-8603 Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB); Kyoto University; Katsura Kyoto 615-8520 Japan
| | - Takumi Nishiyama
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa-ku Nagoya 464-8603 Japan
| | - Atsushi Satsuma
- Graduate School of Engineering; Nagoya University; Furo-cho Chikusa-ku Nagoya 464-8603 Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB); Kyoto University; Katsura Kyoto 615-8520 Japan
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26
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Kwon Y, Kim TY, Kwon G, Yi J, Lee H. Selective Activation of Methane on Single-Atom Catalyst of Rhodium Dispersed on Zirconia for Direct Conversion. J Am Chem Soc 2017; 139:17694-17699. [DOI: 10.1021/jacs.7b11010] [Citation(s) in RCA: 204] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yongwoo Kwon
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Tae Yong Kim
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Gihun Kwon
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jongheop Yi
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyunjoo Lee
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
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27
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Ruiz Puigdollers A, Schlexer P, Tosoni S, Pacchioni G. Increasing Oxide Reducibility: The Role of Metal/Oxide Interfaces in the Formation of Oxygen Vacancies. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01913] [Citation(s) in RCA: 423] [Impact Index Per Article: 60.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Antonio Ruiz Puigdollers
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
| | - Philomena Schlexer
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
| | - Sergio Tosoni
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi, 55 I-20125 Milano, Italy
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28
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Turczyniak S, Greluk M, Słowik G, Gac W, Zafeiratos S, Machocki A. Surface State and Catalytic Performance of Ceria-Supported Cobalt Catalysts in the Steam Reforming of Ethanol. ChemCatChem 2017. [DOI: 10.1002/cctc.201601343] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sylwia Turczyniak
- Faculty of Chemistry; Maria Curie-Sklodowska University in Lublin; 3 Maria Curie-Skłodowska Square 20-031 Lublin Poland
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), ECPM, UMR 7515 CNRS-; Université de Strasbourg; 25, rue Becquerel 67087 Strasbourg Cedex 02 France
| | - Magdalena Greluk
- Faculty of Chemistry; Maria Curie-Sklodowska University in Lublin; 3 Maria Curie-Skłodowska Square 20-031 Lublin Poland
| | - Grzegorz Słowik
- Faculty of Chemistry; Maria Curie-Sklodowska University in Lublin; 3 Maria Curie-Skłodowska Square 20-031 Lublin Poland
| | - Wojciech Gac
- Faculty of Chemistry; Maria Curie-Sklodowska University in Lublin; 3 Maria Curie-Skłodowska Square 20-031 Lublin Poland
| | - Spyridon Zafeiratos
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), ECPM, UMR 7515 CNRS-; Université de Strasbourg; 25, rue Becquerel 67087 Strasbourg Cedex 02 France
| | - Andrzej Machocki
- Faculty of Chemistry; Maria Curie-Sklodowska University in Lublin; 3 Maria Curie-Skłodowska Square 20-031 Lublin Poland
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29
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Ethanol selective oxidation into syngas over Pt-promoted fluorite-like oxide: SSITKA and pulse microcalorimetry study. Catal Today 2016. [DOI: 10.1016/j.cattod.2016.05.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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László B, Baán K, Varga E, Oszkó A, Erdőhelyi A, Kónya Z, Kiss J. Photo-induced reactions in the CO 2 -methane system on titanate nanotubes modified with Au and Rh nanoparticles. APPLIED CATALYSIS B-ENVIRONMENTAL 2016. [DOI: 10.1016/j.apcatb.2016.06.057] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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31
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Varga E, Baán K, Samu GF, Erdőhelyi A, Oszkó A, Kónya Z, Kiss J. The Effect of Rh on the Interaction of Co with Al2O3 and CeO2 Supports. Catal Letters 2016. [DOI: 10.1007/s10562-016-1809-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Ethyl Acetate Abatement on Copper Catalysts Supported on Ceria Doped with Rare Earth Oxides. Molecules 2016; 21:molecules21050644. [PMID: 27196886 PMCID: PMC6273042 DOI: 10.3390/molecules21050644] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 05/09/2016] [Accepted: 05/10/2016] [Indexed: 11/24/2022] Open
Abstract
Different lanthanide (Ln)-doped cerium oxides (Ce0.5Ln0.5O1.75, where Ln: Gd, La, Pr, Nd, Sm) were loaded with Cu (20 wt. %) and used as catalysts for the oxidation of ethyl acetate (EtOAc), a common volatile organic compound (VOC). For comparison, both Cu-free (Ce-Ln) and supported Cu (Cu/Ce-Ln) samples were characterized by N2 adsorption at −196 °C, scanning/transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and temperature programmed reduction in H2. The following activity sequence, in terms of EtOAc conversion, was found for bare supports: CeO2 ≈ Ce0.5Pr0.5O1.75 > Ce0.5Sm0.5O1.75 > Ce0.5Gd0.5O1.75 > Ce0.5Nd0.5O1.75 > Ce0.5La0.5O1.75. Cu addition improved the catalytic performance, without affecting the activity order. The best catalytic performance was obtained for Cu/CeO2 and Cu/Ce0.5Pr0.5O1.75 samples, both achieving complete EtOAc conversion below ca. 290 °C. A strong correlation was revealed between the catalytic performance and the redox properties of the samples, in terms of reducibility and lattice oxygen availability. Νo particular correlation between the VOC oxidation performance and textural characteristics was found. The obtained results can be explained in terms of a Mars-van Krevelen type redox mechanism involving the participation of weakly bound (easily reduced) lattice oxygen and its consequent replenishment by gas phase oxygen.
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33
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Hydrogen Production by Ethanol Steam Reforming (ESR) over CeO2 Supported Transition Metal (Fe, Co, Ni, Cu) Catalysts: Insight into the Structure-Activity Relationship. Catalysts 2016. [DOI: 10.3390/catal6030039] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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34
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Varga E, Pusztai P, Oszkó A, Baán K, Erdőhelyi A, Kónya Z, Kiss J. Stability and Temperature-Induced Agglomeration of Rh Nanoparticles Supported by CeO2. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:2761-70. [PMID: 26914641 DOI: 10.1021/acs.langmuir.5b04482] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Erika Varga
- Department of Physical Chemistry and Materials Science, ‡Department of Applied
and Environmental Chemistry, and §MTA-SZTE Reaction Kinetics and Surface Chemistry
Research Group, University of Szeged, H-6720 Szeged, Hungary
| | - Péter Pusztai
- Department of Physical Chemistry and Materials Science, ‡Department of Applied
and Environmental Chemistry, and §MTA-SZTE Reaction Kinetics and Surface Chemistry
Research Group, University of Szeged, H-6720 Szeged, Hungary
| | - Albert Oszkó
- Department of Physical Chemistry and Materials Science, ‡Department of Applied
and Environmental Chemistry, and §MTA-SZTE Reaction Kinetics and Surface Chemistry
Research Group, University of Szeged, H-6720 Szeged, Hungary
| | - Kornélia Baán
- Department of Physical Chemistry and Materials Science, ‡Department of Applied
and Environmental Chemistry, and §MTA-SZTE Reaction Kinetics and Surface Chemistry
Research Group, University of Szeged, H-6720 Szeged, Hungary
| | - András Erdőhelyi
- Department of Physical Chemistry and Materials Science, ‡Department of Applied
and Environmental Chemistry, and §MTA-SZTE Reaction Kinetics and Surface Chemistry
Research Group, University of Szeged, H-6720 Szeged, Hungary
| | - Zoltán Kónya
- Department of Physical Chemistry and Materials Science, ‡Department of Applied
and Environmental Chemistry, and §MTA-SZTE Reaction Kinetics and Surface Chemistry
Research Group, University of Szeged, H-6720 Szeged, Hungary
| | - János Kiss
- Department of Physical Chemistry and Materials Science, ‡Department of Applied
and Environmental Chemistry, and §MTA-SZTE Reaction Kinetics and Surface Chemistry
Research Group, University of Szeged, H-6720 Szeged, Hungary
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35
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Zhou G, Yao Y, Zhao X, Liu X, Sun B, Zhou A. Band gap energies for white nanosheets/yellow nanoislands/purple nanorods of CeO2. RSC Adv 2016. [DOI: 10.1039/c6ra11553e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The photon band gap energies and spin–orbit coupling states of white nanosheets, purple nanorods and yellow nanoislands of CeO2.
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Affiliation(s)
- Guangdong Zhou
- Guizhou Institute of Technology
- Guizhou 550003
- P. R. China
- Institute for Clean Energy & Advanced Materials (ICEAM)
- Southwest University
| | - Yanqing Yao
- Guizhou Institute of Technology
- Guizhou 550003
- P. R. China
| | - Xusheng Zhao
- Guizhou Institute of Technology
- Guizhou 550003
- P. R. China
| | - Xiaoqing Liu
- Guizhou Institute of Technology
- Guizhou 550003
- P. R. China
| | - Bai Sun
- Department of Physics
- The University of Hong Kong
- China
| | - Ankun Zhou
- KunMing Institute of Botany
- Chinese Academy of Sciences
- Kunming 650201
- P. R. China
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