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	Production of ammonia via a chemical looping process based on metal imides as nitrogen carriers
	Gaol, Wenbo1,2; Guo, Jianping1,3; Wang, Peikun1,2; Wang, Qianru1,2; Chang, Fei1,2; Pei, Qijun1,2; Zhang, Weijin1,2; Liu, Lin1; Chen, Ping1,3
刊名	Nature energy
	2018-12-01
卷号	3期号:12页码:1067-1075
ISSN号	2058-7546
DOI	10.1038/s41560-018-0268-z
通讯作者	Guo, jianping(guojianping@dicp.ac.cn) ; Chen, ping(pchen@dicp.ac.cn)
英文摘要	Ammonia is a promising carbon-free energy carrier, but is currently synthesized industrially under harsh conditions. synthesizing ammonia using lower temperatures and pressures could therefore improve its prospects as a chemical means to store and transport energy. here we report that alkali and alkaline earth metal imides function as nitrogen carriers that mediate ammonia production via a two-step chemical looping process operating under mild conditions. nitrogen is first fixed through the reduction of n-2 by alkali or alkaline earth metal hydrides to form imides and, subsequently, the imides are hydrogenated to produce nh3 and regenerate the metal hydrides. the oxidation state of hydrogen therefore switches between -1 (hydride), o(h-2) and +1 (imide and nh3). late 3d metals accelerate the reaction rates of both steps. the chemical loop mediated by banh and catalysed by ni produces nh3 at 100 degrees c and atmospheric pressure.
WOS关键词	NITRIDE CATALYSTS ; HYDROGEN STORAGE ; COBALT ; WATER ; TEMPERATURE ; COMBUSTION ; MECHANISM ; PRESSURE ; FIXATION ; HYDRIDES
WOS研究方向	Energy & Fuels ; Materials Science
WOS类目	Energy & Fuels ; Materials Science, Multidisciplinary
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000452650200015
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2372955
专题	大连化学物理研究所
通讯作者	Guo, Jianping; Chen, Ping
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Collaborat Innovat Ctr Chem Energy Mat, Dalian, Peoples R China
推荐引用方式 GB/T 7714	Gaol, Wenbo,Guo, Jianping,Wang, Peikun,et al. Production of ammonia via a chemical looping process based on metal imides as nitrogen carriers[J]. Nature energy,2018,3(12):1067-1075.
APA	Gaol, Wenbo.,Guo, Jianping.,Wang, Peikun.,Wang, Qianru.,Chang, Fei.,...&Chen, Ping.(2018).Production of ammonia via a chemical looping process based on metal imides as nitrogen carriers.Nature energy,3(12),1067-1075.
MLA	Gaol, Wenbo,et al."Production of ammonia via a chemical looping process based on metal imides as nitrogen carriers".Nature energy 3.12(2018):1067-1075.

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