The role of spillover hydrogen in gas phase catalytic aromatic hydrodechlorination and hydrogenation over nickel/silica

被引：45

作者：

Keane, MA ^{[1
]}

Tavoularis, G ^{[1
]}

机构：

[1] Univ Kentucky, Dept Chem & Mat Engn, Lexington, KY 40506 USA

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 2003年 / 78卷 / 01期

关键词：

spillover hydrogen; hydrodechlorination; hydrogenation; nickel/silica;

D O I：

10.1023/A:1022593211955

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：

Spillover hydrogen has been shown to contribute to gas phase aromatic hydrodechlorination and hydrogenation over Ni/SiO2 + SiO2 physical mixtures. The reaction rates (per unit mass Ni) are enhanced by extending the Ni/SiO2-SiO2 interface; a non-contiguous combination does not deliver any beneficial effect. The physical mixtures exhibited different selectivity trends for the conversion of 1,3,5-trichlorobenzene and served to prolong productive catalyst lifetime by inhibiting coke formation.

引用

页码：11 / 18

页数：8

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