Monolithic Mn/Ce-based catalyst of fibrous ceramic membrane for complete oxidation of benzene
Cuo, Zhaxi1,2; Den, Yuzhou1,2; Li, Wenhui1,2; Peng, Shengpan1,2; Zhao, Feng1,2; Liu, Haidi1; Chen, Yunfa1,3

Herein, a series of monolithic Mn/Ce-based catalyst of ceramic membranes (CMs) were prepared through impregnation method for volatile organic compounds (VOCs) removal. The porous fibrous CMs with a sinter-locked network structure were fabricated by molding method in a feasible sintering process. Then, the catalytic CMs were systematically analyzed by using specific analytical techniques. The results showed that the fibrous CMs possessed a unique interconnected and uniform pore structure, and MnOx-CeO2 active phases were homogenously dispersed into the porous CMs support. The catalytic activity of samples was measured by using benzene as target VOCs. The results revealed that all catalytic CMs were active for oxidation of benzene. Significantly, the catalytic performance was promoted by introducing Ce species into MnOx. Among all, MnOx-CeO2-3:1 catalyst exhibited the lowest 90% benzene conversion temperature (T-90) at 244 degrees C and high stability with continuous benzene stream in the presence of 90 vol.% (20 degrees C) water vapor under a gaseous hourly space velocity (GHSV) of 5000h(-1), owing to the lower-temperature reducibility and the abundant active oxygen (O-Ads.) with synergetic effect of MnOx and CeO2. The results indicated a promising way to design a high efficiency dual functional CMs for the industrial application of removal VOCs while controlling particulate matters (PMs) from hot gases.

KeywordCeramic Membranes Porous Structure Monolithic Mn/ce-based Catalyst Benzene Oxidation
WOS KeywordVolatile Organic-compounds ; Manganese Oxide Catalysts ; Mechanical-behavior ; Metallic Monoliths ; Combustion ; Temperature ; Reduction ; Route ; China ; Vocs
Funding ProjectNational Key Research and Development Program[2016YFC0207104] ; National Natural Science Foundation of China[51672273]
WOS Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
Funding OrganizationNational Key Research and Development Program ; National Natural Science Foundation of China
WOS IDWOS:000441281300070
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Document Type期刊论文
Corresponding AuthorChen, Yunfa
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.CAS Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Peoples R China
Recommended Citation
GB/T 7714
Cuo, Zhaxi,Den, Yuzhou,Li, Wenhui,et al. Monolithic Mn/Ce-based catalyst of fibrous ceramic membrane for complete oxidation of benzene[J]. APPLIED SURFACE SCIENCE,2018,456:594-601.
APA Cuo, Zhaxi.,Den, Yuzhou.,Li, Wenhui.,Peng, Shengpan.,Zhao, Feng.,...&Chen, Yunfa.(2018).Monolithic Mn/Ce-based catalyst of fibrous ceramic membrane for complete oxidation of benzene.APPLIED SURFACE SCIENCE,456,594-601.
MLA Cuo, Zhaxi,et al."Monolithic Mn/Ce-based catalyst of fibrous ceramic membrane for complete oxidation of benzene".APPLIED SURFACE SCIENCE 456(2018):594-601.
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