Cryoadsorption of hydrogen on divalent cation-exchanged X-zeolites

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	Cryoadsorption of hydrogen on divalent cation-exchanged X-zeolites
	J. Li; E. D. Wu; J. W. Song; F. S. Xiao; C. J. Geng
	2009
发表期刊	International Journal of Hydrogen Energy
ISSN	0360-3199
卷号	34 期号:13 页码:5458-5465
摘要	The cryoadsorption of hydrogen on divalent cation-exchanged zeolites and its relation with exchanged ions is investigated by volume measurements per-formed at near critical temperatures of 140-35 K and pressures up to 7 MPa. The hydrogen uptakes of the zeolites follow an order of NaX > MgX > ZnX > NiX, as same as that of the stability of the ions, but opposite to the hydration tendency of the ions and the isosteric heat of the adsorption of the zeolites, which indicate that the redox potential of the ions in the zeolite is a dominant factor in hydrogen adsorption. The drop of excess adsorption to negative amount and the following recovery at near critical temperature and pressure are explained by a reversed effect of capillary condensation and the bias of the compressibility factor from the assumed equation of state. (C) 2009 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
部门归属	[li, jing; wu, erdong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [song, jiangwei; xiao, fengshou] jilin univ, coll chem, state key lab inorgan synth & preparat chem, changchun 130012, peoples r china. [geng, changjian] northeastern univ, shenyang 110004, peoples r china.;wu, ed (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;ewu@imr.ac.cn
关键词	Hydrogen Adsorption Critical Temperature X-zeolite Ion-exchange Metal-organic Frameworks High-pressures Drift Spectra Adsorption Storage Carbon Physisorption Nax Simulations Compression
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WOS记录号	WOS:000268402000022
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32022
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Li,E. D. Wu,J. W. Song,et al. Cryoadsorption of hydrogen on divalent cation-exchanged X-zeolites[J]. International Journal of Hydrogen Energy,2009,34(13):5458-5465.
APA	J. Li,E. D. Wu,J. W. Song,F. S. Xiao,&C. J. Geng.(2009).Cryoadsorption of hydrogen on divalent cation-exchanged X-zeolites.International Journal of Hydrogen Energy,34(13),5458-5465.
MLA	J. Li,et al."Cryoadsorption of hydrogen on divalent cation-exchanged X-zeolites".International Journal of Hydrogen Energy 34.13(2009):5458-5465.