Promotional effects of Ce on the activity of Mn-Al oxide catalysts derived from hydrotalcites for low temperature benzene oxidation

被引：39

作者：

Mo, Shengpeng ^{[1
,2
]}

Li, Shuangde ^{[1
,3
]}

Li, Jiaqi ^{[1
,2
]}

Peng, Shengpan ^{[1
,2
]}

Chen, Jiayuan ^{[1
,2
]}

Chen, Yunfa ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2016年 / 87卷

基金：

中国国家自然科学基金;

关键词：

CeMnAl composited oxides; Layered double hydroxides; Synergetic effect; Catalytic oxidation; Benzene; VOLATILE ORGANIC-COMPOUNDS; LAYERED DOUBLE HYDROXIDES; GAS SHIFT REACTION; CO OXIDATION; MIXED OXIDES; COMBUSTION; VOCS; NANOPARTICLES; SUBSTITUTION; PEROVSKITE;

D O I：

10.1016/j.catcom.2016.09.017

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：

Ce/MnAl and MnAl mixed metal oxides catalysts have been obtained by calcination of layered double hydroxides precursors. The composite oxides catalysts were studied in total oxidation of benzene. Physicochemical properties of all the catalysts were characterized by using a series of specific analytical techniques. The results revealed that the 0.2Ce/MnAl catalyst exhibited the highest catalytic performance with T-90 about 210 degrees C at a high space velocity (SV = 60,000 mL g(-1), h(-1)), ascribed to its lower-temperature reducibility, the abundant surface lattice oxygen (O-latt), and synergetic effect between Mn4+ and Ce3+/Ce. (C) 2016 Published by Elsevier B.V.

引用

页码：102 / 105

页数：4

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