In situ hybridization of LiNH2-LiH-Mg(BH4)(2) nano-composites:   intermediate and optimized hydrogenation properties

doi:10.1039/c2cp23776h

CORC > 北京大学 > 化学与分子工程学院

	In situ hybridization of LiNH2-LiH-Mg(BH4)(2) nano-composites: intermediate and optimized hydrogenation properties
	Yang, Junzhi ; Li, Dichen ; Fu, He ; Xin, Gongbiao ; Zheng, Jie ; Li, Xingguo
刊名	physical chemistry chemical physics
	2012
关键词	PLASMA-METAL REACTION N-H SYSTEM LITHIUM BOROHYDRIDE STORAGE DEHYDROGENATION MIXTURES KINETICS COMPLEX AMIDE LIBH4
DOI	10.1039/c2cp23776h
英文摘要	Nano-composites of LiNH2-LiH-xMg(BH4)(2) (0 <= x <= 2) were prepared by plasma metal reaction followed by a nucleation growth method. Highly reactive LiNH2-LiH hollow nanoparticles offered a favorable nucleus during a precipitation process of liquid Mg(BH4)(2)center dot OEt2. The electron microscopy results suggested that more than 90% of the obtained nano-composites were in the range 200-400 nm. Because of the short diffusion distance and ternary mixture self-catalyzing effect, this material possesses enhanced hydrogen (de) sorption attributes, including facile low-temperature kinetics, impure gases attenuation and partial reversibility. The optimal hydrogen storage properties were found at the composition of LiNH2-LiH-0.5Mg(BH4)(2), which was tentatively attributed to a Li-4(NH2)(2)(BH4)(2) intermediate. 5.3 wt% hydrogen desorption could be recorded at 150 degrees C, with the first 2.2 wt% release being reversible. This work suggests that controlled in situ hybridization combined with formula optimization can improve hydrogen storage properties.; Chemistry, Physical; Physics, Atomic, Molecular & Chemical; SCI(E); PubMed; 11; ARTICLE; 8; 2857-2863; 14
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/149870]
专题	化学与分子工程学院工学院
推荐引用方式 GB/T 7714	Yang, Junzhi,Li, Dichen,Fu, He,et al. In situ hybridization of LiNH2-LiH-Mg(BH4)(2) nano-composites: intermediate and optimized hydrogenation properties[J]. physical chemistry chemical physics,2012.
APA	Yang, Junzhi,Li, Dichen,Fu, He,Xin, Gongbiao,Zheng, Jie,&Li, Xingguo.(2012).In situ hybridization of LiNH2-LiH-Mg(BH4)(2) nano-composites: intermediate and optimized hydrogenation properties.physical chemistry chemical physics.
MLA	Yang, Junzhi,et al."In situ hybridization of LiNH2-LiH-Mg(BH4)(2) nano-composites: intermediate and optimized hydrogenation properties".physical chemistry chemical physics (2012).