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A Novel Porous Ceramic Membrane Supported Monolithic Cu-Doped Mn-Ce Catalysts for Benzene Combustion

文献类型：期刊论文

作者Cuo, Zhaxi1,2; Wang, Dongdong1,2; Gong, Yan1,2; Zhao, Feng1,2; Liu, Haidi2; Chen, Yunfa1,2,3
刊名CATALYSTS
出版日期2019-08-01
卷号9期号:8页码:14
关键词ceramic membranes monolithic catalyst Cu-doped Mn-Ce oxides benzene combustion synergistic effect
DOI10.3390/catal9080652
英文摘要Porous ceramic membranes (PCMs) are considered as an efficient hot gas filtration material in industrial systems. Functionalization of the PCMs with high-efficiency catalysts for the abatement of volatile organic compounds (VOCs) during dust elimination is a promising way to purify the industrial exhaust gases. In this work, we prepared PCMs (porosity: 70%) in a facile sintering process and integrated Cu-doped Mn-Ce oxides into the PCMs as monolithic catalysts by the sol-gel method for benzene oxidation. Through this method, the catalysts are dispersed evenly throughout the PCMs with excellent adhesion, and the catalytic PCMs provided more active sites for the reactant gases during the catalytic reaction process compared to the powder catalysts. The physicochemical properties of PCMs and catalytic PCMs were characterized systematically, and the catalytic activities were measured in total oxidation of benzene. As a result, all the prepared catalytic PCMs exhibited high catalytic activity for benzene oxidation. Significantly, the monolithic catalyst of Cu0.2Mn0.6Ce0.2/PCMs obtained the lowest temperature for benzene conversion efficiency of 90% (T-90) at 212 degrees C with a high gaseous hourly space velocity of 5000 h(-1) and showed strong resistance to high humidity (90 vol.%, 20 degrees C) with long-term stability in continuous benzene stream, which is caused by abundant active adsorbed oxygen, more surficial oxygen vacancy, and lower-temperature reducibility.
WOS关键词COPPER MANGANESE OXIDE ; SOURCE APPORTIONMENT ; COMPOSITE OXIDES ; PM2.5 POLLUTION ; AMBIENT PM2.5 ; OXIDATION ; CO ; VOCS ; CHLOROBENZENE ; PERFORMANCE
资助项目"Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences[ZDRW-ZS-2017-6-2] ; National Key R&D Program of China[2017YFC0702700]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000482799100009
出版者MDPI
资助机构"Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; National Key R&D Program of China
源URL[http://ir.ipe.ac.cn/handle/122111/30743]  
专题中国科学院过程工程研究所
通讯作者Chen, Yunfa
作者单位1.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.CAS Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Fujian, Peoples R China
推荐引用方式
GB/T 7714		 Cuo, Zhaxi,Wang, Dongdong,Gong, Yan,et al. A Novel Porous Ceramic Membrane Supported Monolithic Cu-Doped Mn-Ce Catalysts for Benzene Combustion[J]. CATALYSTS,2019,9(8):14.
APA Cuo, Zhaxi,Wang, Dongdong,Gong, Yan,Zhao, Feng,Liu, Haidi,&Chen, Yunfa.(2019).A Novel Porous Ceramic Membrane Supported Monolithic Cu-Doped Mn-Ce Catalysts for Benzene Combustion.CATALYSTS,9(8),14.
MLA Cuo, Zhaxi,et al."A Novel Porous Ceramic Membrane Supported Monolithic Cu-Doped Mn-Ce Catalysts for Benzene Combustion".CATALYSTS 9.8(2019):14.

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来源：过程工程研究所

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