Preparation and characteristics of NiO-coated nano-fibriform silica

doi:10.1016/j.colsurfa.2008.04.011

CORC > 北京大学 > 地球与空间科学学院

	Preparation and characteristics of NiO-coated nano-fibriform silica
	Li, Xuejun ; Xiao, Zhiyong ; Lu, Anhuai ; Wang, Lijuan ; Ouyang, Xihui ; Ma, Junhong ; Li, Yuanyuan
刊名	colloids and surfaces a physicochemical and engineering aspects
	2008
关键词	nano-fibriform silica NiO catalyst catalyst carrier NATURAL CHRYSOTILE THERMAL-STABILITY NI/SIO2 CATALYST GEL OXIDE
DOI	10.1016/j.colsurfa.2008.04.011
英文摘要	NiO-coated nano-fibriform silica (NFS) was prepared by an excessive soakage method and was characterized using transmission electron Microscopy, X-ray diffraction, and physical N-2 adsorption techniques Linder different conditions. The results demonstrate that the coated NiO is of a cubic crystal form. The best preparation conditions are incubation in a water bath at 95 C for 2 It and drying at 45 C for 17 h, which lead to a higher NFS utilization ratio and thus lower cost, and a well-distributed NiO coating on the carrier NFS. Nitrogen adsorption isotherms for NiO-coated NFS are similar to a type IV curve, with a specific surface area of 292.7 m(2)/g, adsorptive capacity of 379.2 cm(3)/g, and Pore volume of 0.59 cm(3)/g. The average pore diameter of NiO-coated NFS is 8.01 nm, but most pore diameters are in the range 2.1-3.9 nm. Comparison of NiO-coated NFS and NiO(Ni)-coated sol-gel silica as catalysts reveals that NiO-coated NFS may be an effective catalyst and that NFS may be a good catalyst carrier. (C) 2008 Elsevier- B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000257908600029&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; SCI(E); EI; 5; ARTICLE; 1-3; 171-175; 324
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/248748]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Li, Xuejun,Xiao, Zhiyong,Lu, Anhuai,et al. Preparation and characteristics of NiO-coated nano-fibriform silica[J]. colloids and surfaces a physicochemical and engineering aspects,2008.
APA	Li, Xuejun.,Xiao, Zhiyong.,Lu, Anhuai.,Wang, Lijuan.,Ouyang, Xihui.,...&Li, Yuanyuan.(2008).Preparation and characteristics of NiO-coated nano-fibriform silica.colloids and surfaces a physicochemical and engineering aspects.
MLA	Li, Xuejun,et al."Preparation and characteristics of NiO-coated nano-fibriform silica".colloids and surfaces a physicochemical and engineering aspects (2008).