Effect of SiO2 on the Physicochemical and Catalytic Properties of VMoTeNbO Catalyst in Oxidative Conversion of Ethane

被引：3

作者：

Bondareva, V. M. ^{[1
]}

Ishchenko, E. V. ^{[1
,2
]}

Kardash, T. Yu. ^{[1
,2
]}

Ishchenko, A. V. ^{[1
,2
]}

Sobolev, V. I. ^{[1
]}

机构：

[1] Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Pr Akad Lavrenteva 5, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Ul Pirogova 2, Novosibirsk 630090, Russia

来源：

RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 2016年 / 89卷 / 08期

关键词：

OXIDE CATALYSTS; SELECTIVE AMMOXIDATION; PROPANE AMMOXIDATION; M1;

D O I：

10.1134/S1070427216080103

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Supported oxide catalysts of the overall composition V0.3Mo1Te0.23Nb0.12/n SiO2 (n = 0, 10, 25, 35, and 50 wt %) were tested in oxidative conversion of ethane to ethylene and were characterized by chemical analysis, X-ray diffraction, and high-resolution transmission electron microscopy. On introducing SiO2, coarse crystals of the active M1 phase become partially coated with layers of amorphous SiO2. The support does not influence the selectivity with respect to the reaction products. The catalysts with 10-25 wt % SiO2 content exhibit the highest activity owing to the presence of nanodomains of the M1 phase.

引用

页码：1279 / 1285

页数：7

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