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The Formation of Surface Lithium-Iron Ternary Hydride and its Function on Catalytic Ammonia Synthesis at Low Temperatures
Wang, Peikun1,2; Xie, Hua1,3; Guo, Jianping1,4; Zhao, Zhi1,3; Kong, Xiangtao1,2,3; Gao, Wenbo1,2; Chang, Fei1,2; He, Teng1; Wu, Guotao1; Chen, Mingshu5; Jiang, Ling1,3,4; Chen, Ping1,4
KeywordAmmonia Synthesis Clusters Iron Catalysts Li4feh6 Optical Spectroscopy
Source PublicationANGEWANDTE CHEMIE-INTERNATIONAL EDITION
2017-07-17
DOI10.1002/anie.201703695
Volume56Pages:8716-8720
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordNITROGEN-FIXATION ; TRANSITION-METAL ; ALKALI-METAL ; GAS ; ACTIVATION ; POTASSIUM ; OXIDATION ; CLUSTERS ; STEPS ; CYCLE
AbstractLithium 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.
Language英语
WOS IDWOS:000405308500018
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152078
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Collaborat Innovat Ctr Chem Energy Mat, Dalian 116023, Peoples R China
5.Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China
Recommended Citation
GB/T 7714
Wang, Peikun,Xie, Hua,Guo, Jianping,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 Wang, Peikun.,Xie, Hua.,Guo, Jianping.,Zhao, Zhi.,Kong, Xiangtao.,...&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 Wang, Peikun,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.
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