Facile solid-phase synthesis of the diammoniate of diborane and its thermal decomposition behavior

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	Facile solid-phase synthesis of the diammoniate of diborane and its thermal decomposition behavior
	Z. Z. Fang; J. H. Luo; X. D. Kang; H. J. Xia; S. S. Wang; W. Wen; X. T. Zhou; P. Wang
	2011
发表期刊	Physical Chemistry Chemical Physics
ISSN	1463-9076
卷号	13 期号:16 页码:7508-7513
摘要	The recent mechanistic finding of the hydrogen release pathways from ammonia borane (AB) has sparked new interest in the chemistry and properties of the diammoniate of diborane (DADB), an ionic isomer of AB. We herein report a facile one-step solid-phase synthesis route of DADB using inexpensive starting materials. Our study found that mechanically milling a 1 : 1 NaBH(4)/NH(4)F powder mixture causes the formation of crystalline DADB via a NH(4)BH(4) intermediate. The produced DADB can be readily separated from the sodium fluoride (NaF) by-product by a purification procedure using liquid ammonia at -78 degrees C. The thermal decomposition behavior of DADB was studied using synchronous thermal analyses, particularly in comparison with AB. It was found that the decomposition steps and products of DADB are similar to those of AB. But meanwhile, DADB exhibits a series of advantages over AB that merit its potential hydrogen storage application, such as lower dehydrogenation temperature, free of foaming and lack of an induction period in the thermal decomposition process. Our study further found that the volatile non-hydrogen products from DADB can be effectively suppressed by milling with MgH(2).
部门归属	[fang, zhanzhao; luo, junhong; kang, xiangdong; xia, haijie; wang, ping] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [wang, sisheng; wen, wen; zhou, xingtai] chinese acad sci, shanghai synchrotron radiat facil, shanghai inst appl phys, shanghai 201204, peoples r china.;wang, p (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;pingwang@imr.ac.cn
关键词	Chemical Hydrogen Storage Ammonia-borane Catalyzed Dehydrogenation Release Amidoboranes Hydrides Lithium Sodium
URL	查看原文
WOS记录号	WOS:000289203800029
引用统计	被引频次：23[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/321006/30316
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. Z. Fang,J. H. Luo,X. D. Kang,et al. Facile solid-phase synthesis of the diammoniate of diborane and its thermal decomposition behavior[J]. Physical Chemistry Chemical Physics,2011,13(16):7508-7513.
APA	Z. Z. Fang.,J. H. Luo.,X. D. Kang.,H. J. Xia.,S. S. Wang.,...&P. Wang.(2011).Facile solid-phase synthesis of the diammoniate of diborane and its thermal decomposition behavior.Physical Chemistry Chemical Physics,13(16),7508-7513.
MLA	Z. Z. Fang,et al."Facile solid-phase synthesis of the diammoniate of diborane and its thermal decomposition behavior".Physical Chemistry Chemical Physics 13.16(2011):7508-7513.

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