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Mesoporous Co-Al oxide nanosheets as highly efficient catalysts for CO oxidation
Zhang, Jian1,2; Wang, Liang3; Wu, Zhiyi1; Wang, Hai3; Zhang, Bingsen4; Xiao, Feng-Shou1,2,3
Corresponding AuthorZhang, Bingsen(bszhang@imr.ac.cn) ; Xiao, Feng-Shou(fsxiao@zju.edu.cn)
2020-02-05
Source PublicationAICHE JOURNAL
ISSN0001-1541
Volume66Issue:5Pages:10
AbstractWe report mesoporous Co-Al oxide nanosheets (CoxAl-Ns, where x denotes the Co/Al ratio in the samples) prepared by calcination of CoAl-hydrotalcite and subsequent alkaline treatment. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy measurements show that the prepared Co-Al oxide nanosheets (CoxAl-Ns) are very thin (10-15 nm) and exhibit high mesoporosity (3-5 nm). Catalytic CO oxidation tests reveal that the CoxAl-Ns exhibit excellent catalytic performances at relatively low temperatures: for example, the Co2.5Al-Ns catalyst could achieve 99% CO conversion at -98 degrees C. Kinetic studies and experimental investigations indicate that the high activity of the Co2.5Al-Ns sample is strongly related to the abundance of active sites associated with the large Brunauer-Emmett-Teller surface area. The Co2.5Al-Ns catalyst also achieves full conversion of CO in tests performed with a gas mixture simulating automobile exhaust gas at 200 degrees C. After loading the Co2.5Al-Ns on a porous ceramic substrate, the obtained Co2.5Al-Ns/PC shows high activity and stability in CO oxidation process. These features are potentially important for future industrial applications of these catalysts.
KeywordCO oxidation Co-Al oxide mesoporous nanosheet stable catalyst
Funding OrganizationBeijing Advanced Innovation Center for Soft Matter Science and Engineering of the Beijing University of Chemical Technology ; China Postdoctoral Science Foundation ; Foundation of Central University ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province ; Youth Foundation
DOI10.1002/aic.16929
Indexed BySCI
Language英语
Funding ProjectBeijing Advanced Innovation Center for Soft Matter Science and Engineering of the Beijing University of Chemical Technology[21530009067] ; China Postdoctoral Science Foundation[2018M630662] ; Foundation of Central University[Zhejiang Univ. 2019XZZX004-02] ; National Key Research and Development Program of China[2018YFB0604801] ; National Natural Science Foundation of China[21822203] ; National Natural Science Foundation of China[91645105] ; National Natural Science Foundation of China[91634201] ; Natural Science Foundation of Zhejiang Province[LR18B030002] ; Youth Foundation[20160520126JH]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000510969300001
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137108
Collection中国科学院金属研究所
Corresponding AuthorZhang, Bingsen; Xiao, Feng-Shou
Affiliation1.Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing, Peoples R China
2.Zhejiang Univ, Dept Chem, Key Lab Appl Chem Zhejiang Prov, Hangzhou, Peoples R China
3.Zhejiang Univ, Coll Chem & Biol Engn, Minist Educ, Key Lab Biomass Chem Engn, Hangzhou, Peoples R China
4.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Jian,Wang, Liang,Wu, Zhiyi,et al. Mesoporous Co-Al oxide nanosheets as highly efficient catalysts for CO oxidation[J]. AICHE JOURNAL,2020,66(5):10.
APA Zhang, Jian,Wang, Liang,Wu, Zhiyi,Wang, Hai,Zhang, Bingsen,&Xiao, Feng-Shou.(2020).Mesoporous Co-Al oxide nanosheets as highly efficient catalysts for CO oxidation.AICHE JOURNAL,66(5),10.
MLA Zhang, Jian,et al."Mesoporous Co-Al oxide nanosheets as highly efficient catalysts for CO oxidation".AICHE JOURNAL 66.5(2020):10.
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