Catalytic wet air oxidation of acetic acid over different ruthenium catalysts

被引：52
|
作者：
Wang, Jianbing [1 ,2 ]
Zhu, Wanpeng [2 ]
He, Xuwen [1 ]
Yang, Shaoxia [2 ,3 ]
机构：
[1] China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
[2] Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China
[3] N China Elect Power Univ, Dept Power Engn, Beijing 102206, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 13期
基金：
中国博士后科学基金;
关键词：
catalytic wet air oxidation; ruthenium catalyst; acetic acid; non-lattice oxygen;
D O I：
10.1016/j.catcom.2008.04.019
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：
Ruthenium catalysts were prepared by impregnation of different supports: ZrO(2), CeO(2), TiO(2), ZrO(2)-CeO(2) and TiO(2)-CeO(2). Their activities for acetic acid oxidation in aqueous solution were investigated in a stirred reactor at a reaction temperature of 200 degrees C and total pressure of 4 MPa. The order of the catalyst activity obtained was RuO(2)/ZrO(2)-CeO(2) > RuO(2)/CeO(2) > RuO(2)/TiO(2)-CeO(2) > RuO(2)/ZrO(2) > RuO(2)/TiO(2), which corresponds to surface concentration of non-lattice oxygen (defect-oxide or hydroxyl-like group) of these catalysts. The non-lattice oxygen on the catalyst surface plays an important role in the catalytic activity. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：2163 / 2167
页数：5
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