The Formation of Surface Lithium-Iron Ternary Hydride and its Function on Catalytic Ammonia Synthesis at Low Temperatures

doi:10.1002/anie.201703695

	The Formation of Surface Lithium-Iron Ternary Hydride and its Function on Catalytic Ammonia Synthesis at Low Temperatures
	Wu, Guotao 2; Wang, Peikun 2,3; Xie, Hua 2,4; Guo, Jianping 1,2; Zhao, Zhi 2,4; Kong, Xiangtao 2,3,4; Gao, Wenbo 2,3; Chang, Fei 2,3; He, Teng 2; Chen, Mingshu 5
刊名	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
	2017-07-17
卷号	56 页码:8716-8720
关键词	Ammonia Synthesis Clusters Iron Catalysts Li4feh6 Optical Spectroscopy
DOI	10.1002/anie.201703695
英文摘要	Lithium hydride (LiH) has a strong effect on iron leading to an approximately 3 orders of magnitude increase in catalytic ammonia synthesis. The existence of lithium-iron ternary hydride species at the surface/interface of the catalyst were identified and characterized for the first time by gas-phase optical spectroscopy coupled with mass spectrometry and quantum chemical calculations. The ternary hydride species may serve as centers that readily activate and hydrogenate dinitrogen, forming Fe-(NH2)-Li and LiNH2 moieties-possibly through a redox reaction of dinitrogen and hydridic hydrogen (LiH) that is mediated by iron-showing distinct differences from ammonia formation mediated by conventional iron or ruthenium-based catalysts. Hydrogen-associated activation and conversion of dinitrogen are discussed.
语种	英语
WOS记录号	WOS:000405308500018
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/152078]
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
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Collaborat Innovat Ctr Chem Energy Mat, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 5.Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China
推荐引用方式 GB/T 7714	Wu, Guotao,Wang, Peikun,Xie, Hua,et al. The Formation of Surface Lithium-Iron Ternary Hydride and its Function on Catalytic Ammonia Synthesis at Low Temperatures[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2017,56:8716-8720.
APA	Wu, Guotao.,Wang, Peikun.,Xie, Hua.,Guo, Jianping.,Zhao, Zhi.,...&Chen, Ping.(2017).The Formation of Surface Lithium-Iron Ternary Hydride and its Function on Catalytic Ammonia Synthesis at Low Temperatures.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,56,8716-8720.
MLA	Wu, Guotao,et al."The Formation of Surface Lithium-Iron Ternary Hydride and its Function on Catalytic Ammonia Synthesis at Low Temperatures".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 56(2017):8716-8720.