In Situ X-ray Diffraction Studies on the De/rehydrogenation Processes of the K-2[Zn(NH2)(4)]-8LiH System

doi:10.1021/acs.jpcc.6b12095

	In Situ X-ray Diffraction Studies on the De/rehydrogenation Processes of the K-2[Zn(NH2)(4)]-8LiH System
	Bednarcik, Jozef 5; Chaudhary, Anna-Lisa 1; Gizer, Goekhan 1; Klassen, Thomas 1; Liermann, Hanns-Peter 5; Ping, Chen 6; Dornheim, Martin 1; Cao, Hujun 1; Pistidda, Claudio 1; Richter, Theresia M. M.2
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2017-01-26
卷号	121 期号:3 页码:1546-1551
ISSN号	1932-7447
DOI	10.1021/acs.jpcc.6b12095
文献子类	Article
英文摘要	In this work, the hydrogen absorption and desorption properties of the system K-2[Zn(NH2)(4)]-8LiH are investigated in detail via in situ synchrotron radiation powder X-ray diffraction (SR-PXD), Fourier transform infrared spectroscopy (FT-IR), and volumetric methods. Upon milling, K-2[Zn(NH2)(4)] and 8LiH react to form 4LiNH(2)-4LiH-K2ZnH4, and then 4LiNH(2)-4LiH-K2ZnH4 releases H-2 in multiple steps. The final products of the desorption reaction are KH, LiZn13, and Li2(N)H. During rehydrogenation, KH reacts with LiZn13 under 50 bar of hydrogen producing K3ZnH5. This phase appears to enhance the hydrogenation process which after its formation at ca. 220 degrees C takes place in only 30 s. The system 4LiNH(2)-4LiH-IC2ZnH4 is shown to be reversible under the applied conditions of vacuum at 400 degrees C for desorption and 50 bar of H-2 at 300 degrees C for absorption.
WOS关键词	HYDROGEN STORAGE-SYSTEM ; N-H SYSTEM ; METAL-HYDRIDES ; THERMODYNAMIC PROPERTIES ; DEHYDROGENATION/HYDROGENATION ; 1ST-PRINCIPLES ; PERFORMANCE ; REFINEMENT ; LINH2-MGH2 ; DESORPTION
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000393008900021
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169638]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Cao, Hujun
作者单位	1.Helmholtz Zentrum Geesthacht GmbH, Inst Mat Res, Mat Technol, Max Planck Str 1, D-21502 Geesthacht, Germany 2.Univ Stuttgart, Inst Inorgan Chem, Pfaffenwaldring 55, D-70569 Stuttgart, Germany 3.Univ Pavia, Dept Chem, Chem Phys Sect, Pavia Lab H2, VialeTaramelli 16, I-27100 Pavia, Italy 4.INSTM, Dept Chem & Pharm, Via Vienna 2, I-07100 Sassari, Italy 5.Helmholtz Assoc, Deutsch Elektronen Synchrotron Res Ctr, Notkestr 85, D-22607 Hamburg, Germany 6.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Bednarcik, Jozef,Chaudhary, Anna-Lisa,Gizer, Goekhan,et al. In Situ X-ray Diffraction Studies on the De/rehydrogenation Processes of the K-2[Zn(NH2)(4)]-8LiH System[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2017,121(3):1546-1551.
APA	Bednarcik, Jozef.,Chaudhary, Anna-Lisa.,Gizer, Goekhan.,Klassen, Thomas.,Liermann, Hanns-Peter.,...&Garroni, Sebastiano.(2017).In Situ X-ray Diffraction Studies on the De/rehydrogenation Processes of the K-2[Zn(NH2)(4)]-8LiH System.JOURNAL OF PHYSICAL CHEMISTRY C,121(3),1546-1551.
MLA	Bednarcik, Jozef,et al."In Situ X-ray Diffraction Studies on the De/rehydrogenation Processes of the K-2[Zn(NH2)(4)]-8LiH System".JOURNAL OF PHYSICAL CHEMISTRY C 121.3(2017):1546-1551.