Reaction of aluminium with alkaline sodium stannate solution as a controlled source of hydrogen

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	Reaction of aluminium with alkaline sodium stannate solution as a controlled source of hydrogen
	H. B. Dai; G. L. Ma; H. J. Xia; P. Wang
	2011
发表期刊	Energy & Environmental Science
ISSN	1754-5692
卷号	4 期号:6 页码:2206-2212
摘要	The addition of an alkali has been identified as a simple but effective approach for promoting aluminium (Al)/water (H(2)O) reactions. However, the use of alkaline solution causes problems with corrosion of system apparatus. We herein report a novel method that can simultaneously address the Al/H(2)O reaction kinetics and alkali corrosion problems. Our study found that a combined usage of sodium hydroxide (NaOH) and sodium stannate (Na(2)SnO(3)) can dramatically improve the hydrogen generation kinetics of the Al-H(2)O system. Furthermore, the addition of a small amount of Na2SnO3 causes a remarkable decrease of NaOH concentration, which is required for achieving favorable system performance. The factors influencing the hydrogen generation performance of the system were investigated. In the preliminary mechanistic study, the solid samples that were collected at different reaction stages were examined by X-ray diffraction, X-ray photoelectron spectroscopy and scanning electron microscopy. Our study showed that the most likely mechanism for the promoting effect of Na(2)SnO(3) is the in situ deposition of metallic Sn particles on the Al surface, which act as local inhibitors of the repassivation of Al.
部门归属	[dai, hong-bin; ma, guang-lu; xia, hai-jie; wang, ping] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;dai, hb (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;pingwang@imr.ac.cn
关键词	Generation Water Storage Al Hydrolysis Corrosion Energy Metal
URL	查看原文
WOS记录号	WOS:000291219100033
引用统计	被引频次：74[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/321006/30295
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. B. Dai,G. L. Ma,H. J. Xia,et al. Reaction of aluminium with alkaline sodium stannate solution as a controlled source of hydrogen[J]. Energy & Environmental Science,2011,4(6):2206-2212.
APA	H. B. Dai,G. L. Ma,H. J. Xia,&P. Wang.(2011).Reaction of aluminium with alkaline sodium stannate solution as a controlled source of hydrogen.Energy & Environmental Science,4(6),2206-2212.
MLA	H. B. Dai,et al."Reaction of aluminium with alkaline sodium stannate solution as a controlled source of hydrogen".Energy & Environmental Science 4.6(2011):2206-2212.

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