Ethanol dehydrogenation on copper catalysts with ytterbium stabilized tetragonal ZrO2 support

被引：9

作者：

Chuklina, S. G. ^{[1
]}

Pylinina, A. I. ^{[1
]}

Podzorova, L. I. ^{[2
]}

Mikhailina, N. A. ^{[2
]}

Mikhalenko, I. I. ^{[1
]}

机构：

[1] RUDN Univ, Moscow 117198, Russia

[2] Russian Acad Sci, Baikov Inst Met & Mat Sci, Moscow 119334, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2016年 / 90卷 / 12期

关键词：

bioethanol; alcohol dehydrogenation; oxide catalysts; zirconia; copper-containing catalysts; HYDROGEN-PRODUCTION; BIO-ETHANOL; ZIRCONIA; CU; PERFORMANCE; CONVERSION; OXYGEN; ACID;

D O I：

10.1134/S0036024416120074

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The physicochemical and catalytic properties of Cu-containing crystalline zirconia, obtained via sol-gel synthesis in the presence of Yb3+ ions and polyvinylpyrrolidone, are studied. DTG/DSC, TEM, XRD and BET methods are used to analyze the crystallization, texture, phase uniformity, surface and porosity of ZrO2 nanopowders. It is shown that increasing the copper content (1, 3, and 5 wt % from ZrO2) raises the dehydrogenation activity in the temperature range of 100-400A degrees C and lowers the activation energy of acetaldehyde formation. It is found that the activity of all Cu/t-ZrO2 catalysts grows under the effects of the reaction medium, due to the migration and redispersion of copper.

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页码：2370 / 2376

页数：7

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