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Parvizi MR, Ardjmand M, Habibzadeh S. Synthesis and characterization of nanocatalyst of Co–Mo/Al2O3-TiO2 for the olefin hydrogenation of pyrolysis gasoline. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02548-w] [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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The Nature of Active Sites in the Pd/C-Catalyzed Hydrogenation/Hydrodeoxygenation of Benzaldehyde. Catalysts 2022. [DOI: 10.3390/catal12030251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hydrogenations and hydrodeoxygenations represent two of the most important reactions in the production of both bulk and fine chemicals. Despite the wide and long use of metal-based catalysts for this reaction, there is still some uncertainty with respect to the properties governing the catalyst activity. Using the hydrogenation of benzaldehyde as a model reaction, in this paper, we disclose the dominant parameters determining catalyst activity of Pd nanoparticles supported on a carbonaceous material (carbon nanoplates, GNP). In particular, several operating parameters of the catalyst synthesis were varied in order to obtain materials with differences in such physico-chemical properties as nanoparticle size, Pd oxidation state and Pd surface exposure. A linear correlation between catalyst activity and the amount of surface Pd(0) atoms was found; this dependence, maintained after catalyst recycling, pointed out the nature of the active site of the Pd/GNP catalyst represented by exposed Pd(0) species.
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Qian W, Wang H, Xu Y, Yang X, Zhai G, Zhang H, Ma H, Sun Q, Ying W. In Situ DRIFTS Study of Homologous Reaction of Methanol and Higher Alcohols Synthesis over Mn Promoted Cu–Fe Catalysts. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00355] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weixin Qian
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education; State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hao Wang
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education; State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yanbo Xu
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education; State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaoli Yang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guangwei Zhai
- State Key Laboratory
of Coal Liquefaction and Coal Chemical Technology, Shanghai 201203, China
| | - Haitao Zhang
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education; State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hongfang Ma
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education; State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qiwen Sun
- State Key Laboratory
of Coal Liquefaction and Coal Chemical Technology, Shanghai 201203, China
| | - Weiyong Ying
- Engineering Research Center of Large Scale Reactor Engineering and Technology, Ministry of Education; State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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Reinsdorf A, Korth W, Jess A, Terock M, Klasovsky F, Franke R. Insights into Deactivation and Regeneration of an Industrial Cu/Ni/Cr-Al2O3Catalyst During Aldehyde Hydrogenation. ChemCatChem 2016. [DOI: 10.1002/cctc.201601022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Arne Reinsdorf
- Lehrstuhl für Chemische Verfahrenstechnik; Universität Bayreuth; 95440 Bayreuth Germany
| | - Wolfgang Korth
- Lehrstuhl für Chemische Verfahrenstechnik; Universität Bayreuth; 95440 Bayreuth Germany
| | - Andreas Jess
- Lehrstuhl für Chemische Verfahrenstechnik; Universität Bayreuth; 95440 Bayreuth Germany
| | - Michael Terock
- Lehrstuhl für Metallische Werkstoffe; Universität Bayreuth; 95440 Bayreuth Germany
| | | | - Robert Franke
- Evonik Performance Materials GmbH; 45772 Marl Germany
- Lehrstuhl für Theoretische Chemie; Ruhr-Universität Bochum; 44780 Bochum Germany
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Meshkani F, Rezaei M. Preparation of mesoporous nanocrystalline alkali promoted chromium free catalysts (Fe2O3–Al2O3–NiO) for a high temperature water gas shift reaction. RSC Adv 2015. [DOI: 10.1039/c4ra13508c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Alkali promoted-Fe–Al–Ni catalysts exhibited higher activity and lower methanation compared to the unpromoted Fe–Al–Ni catalyst in high temperature water gas shift reaction.
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Affiliation(s)
- Fereshteh Meshkani
- Catalyst and Advanced Materials Research Laboratory
- Chemical Engineering Department
- Faculty of Engineering
- University of Kashan
- Kashan
| | - Mehran Rezaei
- Catalyst and Advanced Materials Research Laboratory
- Chemical Engineering Department
- Faculty of Engineering
- University of Kashan
- Kashan
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Shen Z, Ke M, Yu P, Liu S, Song Z, Jiang Q. Catalytic activities of Mo-modified Ni/Al2O3 catalysts for thioetherification of mercaptans and di-olefins in fluid catalytic cracking naphtha. TRANSIT METAL CHEM 2012. [DOI: 10.1007/s11243-012-9625-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Characterization and hydrodeoxygenation properties of Co promoted Ni–Mo–B amorphous catalysts: influence of Co content. REACTION KINETICS MECHANISMS AND CATALYSIS 2010. [DOI: 10.1007/s11144-010-0201-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wang WY, Yang YQ, Bao JG, Luo HA. Characterization and catalytic properties of Ni–Mo–B amorphous catalysts for phenol hydrodeoxygenation. CATAL COMMUN 2009. [DOI: 10.1016/j.catcom.2009.09.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Promotional effects of Cu and K on precipitated iron-based catalysts for Fischer–Tropsch synthesis. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.molcata.2007.12.013] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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An X, Wu BS, Wan HJ, Li TZ, Tao ZC, Xiang HW, Li YW. Comparative study of iron-based Fischer–Tropsch synthesis catalyst promoted with potassium or sodium. CATAL COMMUN 2007. [DOI: 10.1016/j.catcom.2007.03.016] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Wan HJ, Wu BS, Tao ZC, Li TZ, An X, Xiang HW, Li YW. Study of an iron-based Fischer–Tropsch synthesis catalyst incorporated with SiO2. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2006.07.062] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Zhang C, Teng B, Yang Y, Tao Z, Hao Q, Wan H, Yi F, Xu B, Xiang H, Li Y. Effect of air-exposure on reduction behavior of a Fe–Mn–Cu–K/SiO2 Fischer-Tropsch synthesis catalyst. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcata.2005.05.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Effect of pre-treatment conditions on the performance of sulfided Ni–Mo/γ-Al2O3 catalysts for hydrogenation of linear aldehydes. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcata.2005.01.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wang X, Ozkan US. Characterization of Active Sites over Reduced Ni−Mo/Al2O3 Catalysts for Hydrogenation of Linear Aldehydes. J Phys Chem B 2005; 109:1882-90. [PMID: 16851170 DOI: 10.1021/jp046489q] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reduced Ni-Mo/Al(2)O(3) catalysts exhibit a behavior analogous to that of sulfided Ni-Mo/Al(2)O(3) catalysts in hydrogenation of linear aldehydes to alcohols. Similar to what has been previously reported for sulfided catalysts, NO and CO(2) can be used over the reduced Ni-Mo catalysts as probe molecules for the active sites responsible for two competing reactions -- aldehyde hydrogenation to alcohols and condensation reactions to heavy products, respectively. Reduced catalysts have a higher aldehyde conversion activity and alcohol selectivity than their sulfided counterparts. The reduction temperature has a strong effect on the surface density of anion vacancies, which are responsible for alcohol formation. Reduction temperature also plays a role in determining the abundance of OH groups on the alumina surface. The effect of reduction temperature also manifests itself through the differences seen in the oxidation states of Mo and Ni species.
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Affiliation(s)
- Xueqin Wang
- Department of Chemical Engineering, The Ohio State University, 140 West 19th Avenue, Columbus, Ohio 43210, USA
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