Effect of Li(3)N additive on the hydrogen storage properties of Li-Mg-N-H system

IMR OpenIR

	Effect of Li(3)N additive on the hydrogen storage properties of Li-Mg-N-H system
	L. P. Ma; Z. Z. Fang; H. B. Dai; X. D. Kang; Y. Liang; P. J. Wang; P. Wang; H. M. Cheng
	2009
发表期刊	Journal of Materials Research
ISSN	0884-2914
卷号	24 期号:6 页码:1936-1942
摘要	The effect of Li(3)N additive on the Li-Mg-N-H system was examined with respect to the reversible dehydrogenation performance. Screening Study with varying Li(3)N additions (5, 10, 20, and 30 mol%) demonstrates that all are effective for improving the hydrogen desorption capacity. Optimally, incorporation of 10 mol% Li(3)N improves the practical capacity from 3.9 wt% to approximately 4.7 wt% hydrogen at 200 degrees C, which drives the dehydrogenation reaction toward completion. Moreover, the capacity enhancement persists well over 10 de-/rehydrogenation cycles. Systematic x-ray diffraction examinations indicate that Li(3)N additive transforms into LiNH(2) and LiH phases and remains during hydrogen cycling. Combined structure/property investigations suggest that the LiNH(2) "seeding" should be responsible for the capacity enhancement, which reduces the kinetic barrier associated with the nucleation of intermediate LiNH(2). In addition, the concurrent incorporation of LiH is effective for mitigating the ammonia release.
部门归属	[ma, lai-peng; fang, zhan-zhao; dai, hong-bin; kang, xiang-dong; liang, yan; wang, pei-jun; wang, ping; cheng, hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, 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	Complex Hydrides Improvement Mixtures Imides Amide H-2
URL	查看原文
WOS记录号	WOS:000267207900005
引用统计	被引频次：13[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/321006/32181
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. P. Ma,Z. Z. Fang,H. B. Dai,et al. Effect of Li(3)N additive on the hydrogen storage properties of Li-Mg-N-H system[J]. Journal of Materials Research,2009,24(6):1936-1942.
APA	L. P. Ma.,Z. Z. Fang.,H. B. Dai.,X. D. Kang.,Y. Liang.,...&H. M. Cheng.(2009).Effect of Li(3)N additive on the hydrogen storage properties of Li-Mg-N-H system.Journal of Materials Research,24(6),1936-1942.
MLA	L. P. Ma,et al."Effect of Li(3)N additive on the hydrogen storage properties of Li-Mg-N-H system".Journal of Materials Research 24.6(2009):1936-1942.