Low-temperature efficient degradation of ethyl acetate catalyzed by lattice-doped CeO2-CoOx nanocomposites

被引：56

作者：

Akram, Sadia ^{[1
,2
]}

Wang, Zhen ^{[1
]}

Chen, Lan ^{[1
]}

Wang, Qi ^{[1
]}

Shen, Genli ^{[1
]}

Han, Ning ^{[3
]}

Chen, Yunfa ^{[3
]}

Ge, Guanglu ^{[1
]}

机构：

[1] Natl Ctr Nanosci & Technol, CAS Key Lab Standardizat & Measurement Nanotechno, Beijing 100190, Peoples R China

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

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

来源：

CATALYSIS COMMUNICATIONS | 2016年 / 73卷

基金：

中国国家自然科学基金;

关键词：

Ethyl acetate oxidation; Ce-Co composite oxides; Hydrothermal method; Redox properties; Lattice oxygen; MIXED OXIDES; COMPOSITE OXIDES; OXIDATION; CO; COMBUSTION; CO3O4-CEO2; SURFACE; CERIUM;

D O I：

10.1016/j.catcom.2015.10.024

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：

A series of CeO2-CoOx nanocatalysts have been synthesized by a facile surfactant-free hydrothermal method and investigated for the oxidative degradation of ethyl acetate (EA) at exceptionally low temperature. The combination of various techniques, such as H-2-TPR, XRD, XPS and HRTEM provides insights to the effect of various factors including redox properties, enhanced lattice oxygen and its mobility etc. on catalysis performance. The results demonstrate that the enriched lattice oxygen is the dominant factor for the low-temperature degradation of EA due to the interaction between lattice-mixed Ce and Co ions, which can be used to design the catalysts for removing VOCs with improved performance. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：123 / 127

页数：5

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