Characterization of CuO-BaO/SiO2 catalysts structure

	Characterization of CuO-BaO/SiO2 catalysts structure
	Yang, R; Hu TD(胡天斗); Hu, TD; Liu, T; Xiang, HW; Zhong, B; Xu, Y; Wu, D; Liu T(刘涛)
刊名	ACTA PHYSICO-CHIMICA SINICA
	1998
卷号	14 期号:7 页码:590-596
关键词	CuO BaO XRD XPS EXAFS ultrafine SiO2
其他题名	CuO-BaO/SiO2 催化剂的结构表征
通讯作者	Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
英文摘要	The structure of CuO-BaO/SiO2 catalysts and their reduced states has been characterized by means of XRD, SPS and EXAFS. Both the results of XRD and XPS indicate that copper and barium in CuO-BaO/SiO2 exist in CuO and BaO respectively and the SiO2 support has influence on the structure of CuO. The EXAFS results show that. the coordination number and length of Cu-O shell and Cu-Cu shell gradually decrease with the supported content decreasing and the extent of decrease is the largest for low supported content samples. When the: supported content exceeds 13.39%, CuO in samples is in crystalline state, when the supported content is smaller or equals 13.39%, CuO in samples is in monolayer dispersion state. In the reduced catalyst samples, only metal copper is detected. With the content of CuO in CuO-BaO/SiO2 decreasing, the length and coordination number of Cu-Cu bond of metal copper on reduced catalyst surface also decrease gradually.
学科主题	Chemistry
类目[WOS]	Chemistry, Physical
研究领域[WOS]	Chemistry
原文出处	SCI
语种	英语
WOS记录号	WOS:000075192400004
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/238048]
专题	高能物理研究所_多学科研究中心高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Yang, R,Hu TD,Hu, TD,et al. Characterization of CuO-BaO/SiO2 catalysts structure[J]. ACTA PHYSICO-CHIMICA SINICA,1998,14(7):590-596.
APA	Yang, R.,胡天斗.,Hu, TD.,Liu, T.,Xiang, HW.,...&刘涛.(1998).Characterization of CuO-BaO/SiO2 catalysts structure.ACTA PHYSICO-CHIMICA SINICA,14(7),590-596.
MLA	Yang, R,et al."Characterization of CuO-BaO/SiO2 catalysts structure".ACTA PHYSICO-CHIMICA SINICA 14.7(1998):590-596.