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Pokorny T, Doroshenko I, Machac P, Simonikova L, Bittova M, Moravec Z, Karaskova K, Skoda D, Pinkas J, Styskalik A. Copper Phosphinate Complexes as Molecular Precursors for Ethanol Dehydrogenation Catalysts. Inorg Chem 2023. [PMID: 38032353 DOI: 10.1021/acs.inorgchem.3c01678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Nowadays, the production of acetaldehyde heavily relies on the petroleum industry. Developing new catalysts for the ethanol dehydrogenation process that could sustainably substitute current acetaldehyde production methods is highly desired. Among the ethanol dehydrogenation catalysts, copper-based materials have been intensively studied. Unfortunately, the Cu-based catalysts suffer from sintering and coking, which lead to rapid deactivation with time-on-stream. Phosphorus doping has been demonstrated to diminish coking in methanol dehydrogenation, fluid catalytic cracking, and ethanol-to-olefin reactions. This work reports a pioneering application of the well-characterized copper phosphinate complexes as molecular precursors for copper-based ethanol dehydrogenation catalysts enriched with phosphate groups (Cu-phosphate/SiO2). Three new catalysts (CuP-1, CuP-2, and CuP-3), prepared by the deposition of complexes {Cu(SAAP)}n (1), [Cu6(BSAAP)6] (2), and [Cu3(NAAP)3] (3) on the surface of commercial SiO2, calcination at 500 °C, and reduction in the stream of the forming gas 5% H2/N2 at 400 °C, exhibited unusual properties. First, the catalysts showed a rapid increase in catalytic activity. After reaching the maximum conversion, the catalyst started to deactivate. The unusual behavior could be explained by the presence of the phosphate phase, which made Cu2+ reduction more difficult. The phosphorus content gradually decreased during time-on-stream, copper was reduced, and the activity increased. The deactivation of the catalyst could be related to the copper diffusion processes. The most active CuP-1 catalyst reaches a maximum of 73% ethanol conversion and over 98% acetaldehyde selectivity at 325 °C and WHSV = 2.37 h-1.
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Affiliation(s)
- Tomas Pokorny
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlarska 2, CZ-61137 Brno, Czech Republic
| | - Iaroslav Doroshenko
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlarska 2, CZ-61137 Brno, Czech Republic
| | - Petr Machac
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlarska 2, CZ-61137 Brno, Czech Republic
| | - Lucie Simonikova
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlarska 2, CZ-61137 Brno, Czech Republic
| | - Miroslava Bittova
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlarska 2, CZ-61137 Brno, Czech Republic
| | - Zdenek Moravec
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlarska 2, CZ-61137 Brno, Czech Republic
| | - Katerina Karaskova
- Institute of Environmental Technology,CEET, VSB-TUO, CZ-70800 Ostrava, Czech Republic
| | - David Skoda
- Centre of Polymer Systems, Tomas Bata University in Zlin, Tr. Tomase Bati 5678, CZ-76001 Zlin, Czech Republic
| | - Jiri Pinkas
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlarska 2, CZ-61137 Brno, Czech Republic
| | - Ales Styskalik
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlarska 2, CZ-61137 Brno, Czech Republic
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Du ZY, Zhang L, Wang BY, Liu SJ, Huang B, Liu CM, Zhang WX. Two magnetic Δ-chain-based Mn(ii) and Co(ii) coordination polymers with mixed carboxylate–phosphinate and μ3-OH−bridges. CrystEngComm 2017. [DOI: 10.1039/c6ce02537d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liu B, Zhang ZH, Xu L, Jiao H. Structures, properties and topologies of two layered compounds based on 2-carboxethyl(phenyl)phosphinic acid. J STRUCT CHEM+ 2016. [DOI: 10.1134/s002247661604017x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Affiliation(s)
- Joydeb Goura
- Department
of Chemistry, Indian Institute of Technology-Kanpur, Kanpur 208 016, India
| | - Vadapalli Chandrasekhar
- Department
of Chemistry, Indian Institute of Technology-Kanpur, Kanpur 208 016, India
- National Institute of Science Education and Research, Institute of Physics Campus, Sachivalaya Marg,
Sainik School, Bhubaneswar, Orissa 751 005, India
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Wei C, Xia CK, Wu YL, Wu F, Yang S, Ma JL. Syntheses, crystal structures and properties of four novel coordination polymers assembled from versatile 1,2,3,5-benzenetetracarboxylic acid. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.12.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Guan L, Sheng HF, Wang Y. A Ladder-Like Five-Coordinated Zinc Coordination Polymer Based On 2-Carboxyethyl(Phenyl)Phosphinic Acid and 1,10-Phenanthroline. PHOSPHORUS SULFUR 2015. [DOI: 10.1080/10426507.2014.947408] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Lei Guan
- School of Chemistry and Materials Science, Liaoning University of Petroleum and Chemical Engineering, Fushun, 113001, China
| | - Hua Fei Sheng
- School of Chemistry and Materials Science, Liaoning University of Petroleum and Chemical Engineering, Fushun, 113001, China
| | - Ying Wang
- Center of Experiment, College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning University of Petroleum and Chemical Engineering, Fushun, 113001, China
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Yang W, Wang H, Tian WG, Li J, Sun ZM. The First Family of Actinide Carboxyphosphinates: Two- and Three-Dimensional Uranyl Coordination Polymers. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402592] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhou MJ, Li B, Liu L, Feng YL, Guo JZ. Two polymorphs of zinc(ii) coordination polymers constructed from 2-carboxyethyl(phenyl)phosphinate and 1,4-bis(1H-imidazol-1-yl)butane ligands. CrystEngComm 2014. [DOI: 10.1039/c4ce01102c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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