Defect size analysis approach combined with silicate gel/ceramic particles for defect repair of Pd composite membranes

	Defect size analysis approach combined with silicate gel/ceramic particles for defect repair of Pd composite membranes
	Bao, Feng 1; Xu, Hengyong 1; Zheng, Lei 1,2; Li, Hui 1; Xu, Tianying 1
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2016-11-02
卷号	41 期号:41 页码:18522-18532
关键词	Palladium Composite Membranes Defect Distribution Analysis Guidance For The Selection Of Particle Sizes Strong Adhesion Durability
ISSN号	0360-3199
文献子类	Article
英文摘要	Pd composite membranes show great potential in several important fields, such as high purity H-2 separation and production, due to unique permeability to hydrogen and its isotopes. However, the significant defect formation on palladium membranes and following decline in H-2 selectivity resulted from either preparation process or thermal/chemical stability issues exist as a great challenge for their commercial applications. The currently existing techniques for defect repair of Pd composite membranes show either high complexity or limited effect thus limiting their practical applications. In this study, we presented a novel approach, i.e., strongly adhesive and high temperature resistant silicate gel (HTRSG)/ceramic particles, in combination with home-developed "modified" liquid liquid displacement porometry (MLLDP) for defect size distribution analysis, where the latter can provide important guidance for the selection of appropriate particles sizes. The experimental results with thin Pd membranes indicated significant improvement in H-2 permselectivity without decreasing H2 permeance after defect repair treatment. Moreover, silicate gel exhibits great durability under high temperature conditions. This approach features high simplicity, effectiveness and low cost, and is especially suitable for on-site repair of spent membranes in future applications. In addition, it is universal for defect repair of other inorganic membranes, and can also be used for the sealing of membrane modules. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
WOS关键词	PORE-SIZE ; MICROPOROUS MEMBRANES ; HYDROGEN SEPARATION ; THIN ; DISTRIBUTIONS ; POROSIMETRY ; SURFACE ; TUBE ; FLUX ; AG
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000385598300022
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169952]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Li, Hui
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Bao, Feng,Xu, Hengyong,Zheng, Lei,et al. Defect size analysis approach combined with silicate gel/ceramic particles for defect repair of Pd composite membranes[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2016,41(41):18522-18532.
APA	Bao, Feng,Xu, Hengyong,Zheng, Lei,Li, Hui,&Xu, Tianying.(2016).Defect size analysis approach combined with silicate gel/ceramic particles for defect repair of Pd composite membranes.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,41(41),18522-18532.
MLA	Bao, Feng,et al."Defect size analysis approach combined with silicate gel/ceramic particles for defect repair of Pd composite membranes".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 41.41(2016):18522-18532.