Low-Temperature Conversion of ortho-Hydrogen to para-Hydrogen over Ni/Al2O3 Supported Catalysts

被引：7

作者：

Zhuzhgov, A. V. ^{[1
]}

Krivoruchko, O. P. ^{[1
]}

Isupova, L. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Novosibirsk 630090, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2020年 / 94卷 / 01期

关键词：

alumina substrates; 8 +/- 1%Ni/Al2O3 supported catalysts; reaction of ortho-para conversion of hydrogen; ACTIVATION;

D O I：

10.1134/S0036024419120379

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：

Comparative studies of Ni/Al2O3 catalysts during the low-temperature conversion of ortho-hydrogen to para-hydrogen are performed. Industrial alumina of A-64 grade, obtained via precipitation (OAPP-1), and alumina obtained via thermal activation (without coprecipitation) (OAPP-2), are used as the substrates. The volumetric reaction rate constants of 8 +/- 1% Ni/OAPP-1 and 8 +/- 1% Ni/OAPP-2 catalysts prepared on the basis of these substrates during low-temperature ortho-para conversion (OPC) are 2.2 x 10(-3) and 2.4 x 10(-3) mol cm(-3) s(-1), respectively, allowing the use of a more environmentally attractive substrate in preparing the catalyst.

引用

页码：58 / 66

页数：9

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