High-Performance Hydrogen Storage Nanoparticles Inside Hierarchical   Porous Carbon Nanofibers with Stable Cycling

doi:10.1021/acsami.7b02589

CORC > 北京大学 > 化学与分子工程学院

	High-Performance Hydrogen Storage Nanoparticles Inside Hierarchical Porous Carbon Nanofibers with Stable Cycling
	Xia, Guanglin ; Chen, Xiaowei ; Zhao, Yan ; Li, Xingguo ; Guo, Zaiping ; Jensen, Craig M. ; Gu, Qinfen ; Yu, Xuebin
刊名	ACS APPLIED MATERIALS & INTERFACES
	2017
关键词	nanoparticles hydrogen storage amide carbon nanofibers cycle N-H SYSTEM MELT INFILTRATION SORPTION KINETICS PARTICLE-SIZE MECHANISM HYDRIDES DEHYDROGENATION THERMODYNAMICS IMPROVEMENT STRATEGIES
DOI	10.1021/acsami.7b02589
英文摘要	An effective route based on space-confined chemical reaction to synthesize uniform Li2Mg(NH)(2) nanoparticles is reported. The hierarchical 5 pores inside the one-dimensional carbon nanofibers (CNFs), induced by the creation of well-dispersed Li3N, serve as intelligent nanoreactors for the reaction of Li3N with Mg-containing precursors, resulting in the formation of uniformly discrete Li2Mg(NH)(2) nanoparticles. The nanostructured Li2Mg(NH)(2) particles inside the CNFs are capable of complete hydrogenation and dehydrogenation at a temperature as low as 105 degrees C with the suppression of ammonia release. Furthermore, by virtue of the nanosize effects and space confinement by the porous carbon scaffold, no degradation was observed after 50 de/rehydrogenation cydes at a temperature as low as 130 degrees C for the as prepared Li2Mg(NH)(2) nanoparticles, indicating excellent reversibility. Moreover, the theoretical calculations demonstrate that the reduction in particle size could significantly enhance the H-2 sorption of Li2Mg(NH)(2) by decreasing the relative activation energy barrier, which agrees well with our experimental results. This method could represent an effective, general strategy for synthesizing nanoparticles of complex hydrides with stable reversibility and excellent hydrogen storage performance.; National Science Fund for Distinguished Young Scholars [51625102]; National Natural Science Foundation of China [51471053]; Science and Technology Commission of Shanghai Municipality [17XD1400700]; Discovery Early Career Researcher Award [DE170100362]; SCI(E); ARTICLE; 18; 15502-15509; 9
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473445]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Xia, Guanglin,Chen, Xiaowei,Zhao, Yan,et al. High-Performance Hydrogen Storage Nanoparticles Inside Hierarchical Porous Carbon Nanofibers with Stable Cycling[J]. ACS APPLIED MATERIALS & INTERFACES,2017.
APA	Xia, Guanglin.,Chen, Xiaowei.,Zhao, Yan.,Li, Xingguo.,Guo, Zaiping.,...&Yu, Xuebin.(2017).High-Performance Hydrogen Storage Nanoparticles Inside Hierarchical Porous Carbon Nanofibers with Stable Cycling.ACS APPLIED MATERIALS & INTERFACES.
MLA	Xia, Guanglin,et al."High-Performance Hydrogen Storage Nanoparticles Inside Hierarchical Porous Carbon Nanofibers with Stable Cycling".ACS APPLIED MATERIALS & INTERFACES (2017).