"Defect-free" interlayer with a smooth surface and controlled pore-mouth size for thin and thermally stable Pd composite membranes

doi:10.1016/j.ijhydene.2015.09.024

	"Defect-free" interlayer with a smooth surface and controlled pore-mouth size for thin and thermally stable Pd composite membranes
	Zheng, Lei 1,2; Li, Hui 2; Xu, Hengyong 2
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2016-01-12
卷号	41 期号:2 页码:1002-1009
关键词	"defect-free" Pore-mouth Size Characterization Smooth Permeance Thermally Stable
ISSN号	0360-3199
DOI	10.1016/j.ijhydene.2015.09.024
文献子类	Article
英文摘要	Thin and thermally stable Pd membrane can be successfully coated on "defect-free" alumina sol/gamma-Al2O3 interlayer with a controlled pore-mouth size of ca. 0.08 um obtained by modified sol-gel method on macroporous alpha-Al2O3 support. The "modified" bubble-point method and home-developed "modified" liquid-liquid displacement method were used to check the size and amount of defects (>3 mu m), and characterize pore-mouth size distribution of interlayers, respectively. The modified sol-gel method shows superiority in smoothening out defects and bumps compared to conventional suspended particles sintering method as the incorporation of alumina sol-gel particles can significantly improve the adhesion and dispersal uniformity of gamma-Al2O3 particles. The synthesized Pd composite membranes of 4.5 mu m thickness exhibit high hydrogen permeance and selectivity compared to similar studies. In addition, the good membrane stability was verified by the long-term operation under hydrogen permeation conditions. This can be mainly ascribed to the formation of defect-free and smooth interlayer which effectively suppress the shear stress between Pd layer and intermediate layer when enduring thermal cycles and hydrogen adsorption and desorption cycles. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
WOS关键词	POROUS STAINLESS-STEEL ; HOLLOW-FIBER SUBSTRATE ; HYDROGEN SEPARATION ; PALLADIUM MEMBRANES ; SUPPORT ; DISTRIBUTIONS ; POROSIMETRY ; ZEOLITE ; NICKEL ; FLUX
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:000369202900029
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/171374]
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Lei,Li, Hui,Xu, Hengyong. "Defect-free" interlayer with a smooth surface and controlled pore-mouth size for thin and thermally stable Pd composite membranes[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2016,41(2):1002-1009.
APA	Zheng, Lei,Li, Hui,&Xu, Hengyong.(2016)."Defect-free" interlayer with a smooth surface and controlled pore-mouth size for thin and thermally stable Pd composite membranes.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,41(2),1002-1009.
MLA	Zheng, Lei,et al.""Defect-free" interlayer with a smooth surface and controlled pore-mouth size for thin and thermally stable Pd composite membranes".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 41.2(2016):1002-1009.