Catalytic oxidation of toluene and p-xylene using gold supported on Co3O4 catalyst prepared by colloidal precipitation method

被引：74

作者：

Wu, Hongjing ^{[1
]}

Wang, Liuding ^{[1
]}

Shen, Zhongyuan ^{[1
]}

Zhao, Jinghui ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Dept Appl Phys, Xian 710072, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2011年 / 351卷

基金：

中国国家自然科学基金;

关键词：

Au/Co3O4; Toluene and p-xylene oxidation; Electrophilic oxygen species; Oxygen vacancies; Strong interaction; VOLATILE ORGANIC-COMPOUNDS; NANOCRYSTALLINE COBALT OXIDE; DEEP OXIDATION; AU/CO3O4; CATALYSTS; BENZENE OXIDATION; CARBON-MONOXIDE; GAMMA-ALUMINA; CO OXIDATION; N-HEXANE; COMBUSTION;

D O I：

10.1016/j.molcata.2011.10.005

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：

Gold supported on cobalt oxide has been successfully synthesized through a colloidal precipitation method and tested in toluene and p-xylene total oxidation. It has been demonstrated that the catalytic activity of Au/Co3O4 for toluene and p-xylene oxidation is much higher than that of Au/Al2O3 and Au/MgO in spite of its lower BET surface area and larger gold crystalline size. The enhanced catalytic activity in toluene and p-xylene oxidation has been linked to a high concentration of superficial electrophilic oxygen species and oxygen vacancies, which may be originated from a strong interaction in the colloidal Au-Co3O4 system. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：188 / 195

页数：8

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