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Synergistic Effects in Porous Mn-Co Mixed Oxide Nanorods Enhance Catalytic Deep Oxidation of Benzene
Alternative TitleCatal. Lett.
Tang, Wenxiang1,2; Li, Wenhui1,2; Li, Dongyan1; Liu, Gang1,2; Wu, Xiaofeng1; Chen, Yunfa1
2014-11-01
Source PublicationCATALYSIS LETTERS
ISSN1011-372X
Volume144Issue:11Pages:1900-1910
AbstractA series of Mn-Co mixed oxide nanorods with homogeneous worm-like pores were facilely prepared by a sol-gel chelating method. With incorporating Mnn+ into Co3O4, the formation of solid solution with spinel structure inhibits the growth of nanoparticles which is benefit to keep smaller crystal size and higher surface area. XPS and H-2-TPR results indicate that there are more high manganese valence (Mn3+ and Mn4+) and adsorbed oxygen species as well as low-temperature reducibility for the mixed oxide catalysts, as a result of the strong synergistic effect between Mn and Co species in solid solution, which will play a key role in catalytic activity. The as-prepared catalysts were used for catalytic deep oxidation of benzene which is a typical carcinogenic VOC. The catalytic activities over the mixed oxides with varied mole ratio are much higher than that on the single MnOx or Co3O4. The Mn5Co5 sample showed the best activity with T-90% for benzene conversions into CO2 were low to 237 A degrees C at a high space velocity of 120,000 mL g(-1) h(-1).; A series of Mn-Co mixed oxide nanorods with homogeneous worm-like pores were facilely prepared by a sol-gel chelating method. With incorporating Mnn+ into Co3O4, the formation of solid solution with spinel structure inhibits the growth of nanoparticles which is benefit to keep smaller crystal size and higher surface area. XPS and H-2-TPR results indicate that there are more high manganese valence (Mn3+ and Mn4+) and adsorbed oxygen species as well as low-temperature reducibility for the mixed oxide catalysts, as a result of the strong synergistic effect between Mn and Co species in solid solution, which will play a key role in catalytic activity. The as-prepared catalysts were used for catalytic deep oxidation of benzene which is a typical carcinogenic VOC. The catalytic activities over the mixed oxides with varied mole ratio are much higher than that on the single MnOx or Co3O4. The Mn5Co5 sample showed the best activity with T-90% for benzene conversions into CO2 were low to 237 A degrees C at a high space velocity of 120,000 mL g(-1) h(-1).
KeywordEnvironmental Catalysis Total Oxidation Nanorods Mn-co Mixed Oxide Interaction Benzene
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s10562-014-1340-3
URL查看原文
Indexed BySCI
Language英语
WOS KeywordVOLATILE ORGANIC-COMPOUNDS ; INDOOR AIR-QUALITY ; CALCINATION TEMPERATURE ; METHANE COMBUSTION ; MANGANESE ; TOLUENE ; COPPER ; OXYGEN ; CO3O4 ; VOCS
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000343136100015
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11687
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
GB/T 7714
Tang, Wenxiang,Li, Wenhui,Li, Dongyan,et al. Synergistic Effects in Porous Mn-Co Mixed Oxide Nanorods Enhance Catalytic Deep Oxidation of Benzene[J]. CATALYSIS LETTERS,2014,144(11):1900-1910.
APA Tang, Wenxiang,Li, Wenhui,Li, Dongyan,Liu, Gang,Wu, Xiaofeng,&Chen, Yunfa.(2014).Synergistic Effects in Porous Mn-Co Mixed Oxide Nanorods Enhance Catalytic Deep Oxidation of Benzene.CATALYSIS LETTERS,144(11),1900-1910.
MLA Tang, Wenxiang,et al."Synergistic Effects in Porous Mn-Co Mixed Oxide Nanorods Enhance Catalytic Deep Oxidation of Benzene".CATALYSIS LETTERS 144.11(2014):1900-1910.
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