Revealing the Influence of Silver in Ni–Ag Catalysts on the Selectivity of Higher Olefin Synthesis from Stearic Acid
- Autores: Danyushevsky V.Y.1, Murzin V.Y.2, Kuznetsov P.S.1, Shamsiev R.S.1, Katsman E.A.1, Khramov E.V.3, Zubavichus Y.V.3, Berenblyum A.S.1
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Afiliações:
- Moscow Technological University, Institute of Fine Chemical Technologies
- Deutsches Elektronen-Synchrotron (DESY)
- National Research Center “Kurchatov Institute” (NRCKI), Kurchatov Synchrotron–Neutron Research Complex
- Edição: Volume 92, Nº 1 (2018)
- Páginas: 57-65
- Seção: Chemical Kinetics and Catalysis
- URL: https://bakhtiniada.ru/0036-0244/article/view/169851
- DOI: https://doi.org/10.1134/S0036024417120068
- ID: 169851
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Resumo
Results on the conversion of stearic acid to olefins over Ni–Ag/γ-Al2O3 catalysts are presented. XANES and EXAFS experiments in situ and DFT calculations were applied to reveal the structure of active sites therein. It is shown that the introduction of Ag to Ni catalysts leads to an increase in the olefin yield. After a reduction in hydrogen (350°C, 3 h) alumina-supported nanoparticles of nickel sulfides and metallic Ag are formed. The role of metal hydrides formed during the reaction is extensively discussed.
Sobre autores
V. Danyushevsky
Moscow Technological University, Institute of Fine Chemical Technologies
Autor responsável pela correspondência
Email: vyadan@yandex.ru
Rússia, Moscow
V. Murzin
Deutsches Elektronen-Synchrotron (DESY)
Email: vyadan@yandex.ru
Alemanha, Hamburg
P. Kuznetsov
Moscow Technological University, Institute of Fine Chemical Technologies
Email: vyadan@yandex.ru
Rússia, Moscow
R. Shamsiev
Moscow Technological University, Institute of Fine Chemical Technologies
Email: vyadan@yandex.ru
Rússia, Moscow
E. Katsman
Moscow Technological University, Institute of Fine Chemical Technologies
Email: vyadan@yandex.ru
Rússia, Moscow
E. Khramov
National Research Center “Kurchatov Institute” (NRCKI), Kurchatov Synchrotron–Neutron Research Complex
Email: vyadan@yandex.ru
Rússia, Moscow
Y. Zubavichus
National Research Center “Kurchatov Institute” (NRCKI), Kurchatov Synchrotron–Neutron Research Complex
Email: vyadan@yandex.ru
Rússia, Moscow
A. Berenblyum
Moscow Technological University, Institute of Fine Chemical Technologies
Email: vyadan@yandex.ru
Rússia, Moscow
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