Mesoporous Co-Al oxide nanosheets as highly efficient catalysts for CO oxidation

doi:10.1002/aic.16929

CORC > 金属研究所 > 中国科学院金属研究所

	Mesoporous Co-Al oxide nanosheets as highly efficient catalysts for CO oxidation
	Zhang, Jian 2,3; Wang, Liang 4; Wu, Zhiyi 2; Wang, Hai 4; Zhang, Bingsen 1; Xiao, Feng-Shou 2,3,4
刊名	AICHE JOURNAL
	2020-02-05
卷号	66 期号:5 页码:10
关键词	CO oxidation Co-Al oxide mesoporous nanosheet stable catalyst
ISSN号	0001-1541
DOI	10.1002/aic.16929
通讯作者	Zhang, Bingsen(bszhang@imr.ac.cn) ; Xiao, Feng-Shou(fsxiao@zju.edu.cn)
英文摘要	We 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.
资助项目	Beijing 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研究方向	Engineering
语种	英语
出版者	WILEY
WOS记录号	WOS:000510969300001
资助机构	Beijing 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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137107]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Bingsen; Xiao, Feng-Shou
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang, Peoples R China 2.Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing, Peoples R China 3.Zhejiang Univ, Dept Chem, Key Lab Appl Chem Zhejiang Prov, Hangzhou, Peoples R China 4.Zhejiang Univ, Coll Chem & Biol Engn, Minist Educ, Key Lab Biomass Chem Engn, Hangzhou, Peoples R China
推荐引用方式 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.