Mechanically Milling with Off-the-Shelf Magnesium Powder to Promote Hydrogen Release from Ammonia Borane

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	Mechanically Milling with Off-the-Shelf Magnesium Powder to Promote Hydrogen Release from Ammonia Borane
	J. H. Luo; X. D. Kang; P. Wang
	2010
发表期刊	Journal of Physical Chemistry C
ISSN	1932-7447
卷号	114 期号:23 页码:10606-10611
摘要	Mechanically milling with the off-the-shelf magnesium (Mg) powder can dramatically improve the dehydrogenation properties of ammonia borane (AB) on all key aspects: enhancing the dehydrogenation kinetics, reducing the induction period, suppressing the formation of volatile byproduct, and alleviating the sample foaming. The postmilled AB/0.5Mg sample can release 8.2 wt % of hydrogen at 100 degrees C within 4 h and deliver >2.5 equiv of hydrogen in AB upon elevating the dehydrogenation temperature to 300 degrees C, giving a material-based hydrogen capacity of 12 wt To. Additionally, the dehydrogenation reaction of the AB/0.5Mg sample becomes significantly less exothermic than that of pristine AB, and remarkably, the third dehydrogenation step is tailored to be endothermic. Combination of phase/structure/chemical state analyses suggest that a considerable amount of Mg participates in the dehydrogenation process, resulting in the formation of Mg-N-B-H product(s).
部门归属	[luo, jun-hong; kang, xiang-dong; wang, ping] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;wang, p (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	Pulsed-laser Deposition N-h Compounds Thermal-decomposition Catalyzed Dehydrogenation Storage Material Nitride Films Boron-nitride Lithium Amidoboranes Dissociation
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WOS记录号	WOS:000278479700039
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/321006/31355
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. H. Luo,X. D. Kang,P. Wang. Mechanically Milling with Off-the-Shelf Magnesium Powder to Promote Hydrogen Release from Ammonia Borane[J]. Journal of Physical Chemistry C,2010,114(23):10606-10611.
APA	J. H. Luo,X. D. Kang,&P. Wang.(2010).Mechanically Milling with Off-the-Shelf Magnesium Powder to Promote Hydrogen Release from Ammonia Borane.Journal of Physical Chemistry C,114(23),10606-10611.
MLA	J. H. Luo,et al."Mechanically Milling with Off-the-Shelf Magnesium Powder to Promote Hydrogen Release from Ammonia Borane".Journal of Physical Chemistry C 114.23(2010):10606-10611.