Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Gold catalyzed one-pot myrtenol amination : Effect of catalyst redox activation. / Simakova, I. L.; Demidova, Yu S.; Estrada, M. и др.
в: Catalysis Today, Том 279, 01.01.2017, стр. 63-70.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Gold catalyzed one-pot myrtenol amination
T2 - Effect of catalyst redox activation
AU - Simakova, I. L.
AU - Demidova, Yu S.
AU - Estrada, M.
AU - Beloshapkin, S.
AU - Suslov, E. V.
AU - Volcho, K. P.
AU - Salakhutdinov, N. F.
AU - Murzin, D. Yu
AU - Simakov, A.
N1 - Publisher Copyright: © 2016 Elsevier B.V.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The effect of the gold catalysts redox treatment on the formation of active catalysts for one-pot myrtenol amination with aniline was studied. A series of nanosized gold catalysts over metal oxides such as ZrO2, CeO2, La2O3 different in their basicity were synthesized by the deposition–precipitation method and characterized using TEM, XPS and TPR-, TPO-MS. One-pot myrtenol amination was carried out in a batch reactor at 180 °C under nitrogen pressure 9 bar. The catalytic activity and selectivity were shown to depend on the catalyst redox treatment. Pre-reduced gold catalysts supported on zirconium or cerium oxides were shown to be more effective in alcohol activation while once pre-oxidized catalysts promoted formation of the target amine with high selectivity. It was shown that thermal activation of catalysts in oxygen resulted in higher efficiency of ammonia removal compared to treatment in hydrogen. Difference in activity and selectivity for pre-reduced and pre-oxidized catalysts was proposed to be mainly related to the different degree of the support basic properties modification by residual ammonia.
AB - The effect of the gold catalysts redox treatment on the formation of active catalysts for one-pot myrtenol amination with aniline was studied. A series of nanosized gold catalysts over metal oxides such as ZrO2, CeO2, La2O3 different in their basicity were synthesized by the deposition–precipitation method and characterized using TEM, XPS and TPR-, TPO-MS. One-pot myrtenol amination was carried out in a batch reactor at 180 °C under nitrogen pressure 9 bar. The catalytic activity and selectivity were shown to depend on the catalyst redox treatment. Pre-reduced gold catalysts supported on zirconium or cerium oxides were shown to be more effective in alcohol activation while once pre-oxidized catalysts promoted formation of the target amine with high selectivity. It was shown that thermal activation of catalysts in oxygen resulted in higher efficiency of ammonia removal compared to treatment in hydrogen. Difference in activity and selectivity for pre-reduced and pre-oxidized catalysts was proposed to be mainly related to the different degree of the support basic properties modification by residual ammonia.
KW - Alcohol amination
KW - Gold catalyst
KW - Myrtenol
KW - One-pot
KW - Redox treatment effect
KW - PARTICLES
KW - BEHAVIOR
KW - ALUMINA
KW - ALCOHOLS
KW - NANOPARTICLES
KW - DEHYDROGENATION
KW - CLUSTERS
KW - N-ALKYLATION
KW - DERIVATIVES
KW - METAL-OXIDES
UR - http://www.scopus.com/inward/record.url?scp=84992507439&partnerID=8YFLogxK
U2 - 10.1016/j.cattod.2016.01.044
DO - 10.1016/j.cattod.2016.01.044
M3 - Article
AN - SCOPUS:84992507439
VL - 279
SP - 63
EP - 70
JO - Catalysis Today
JF - Catalysis Today
SN - 0920-5861
ER -
ID: 8968238