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Layered Fe-Substituted LiNiO2 Electrocatalysts for High-Efficiency Oxygen Evolution Reaction
Zhu, Kaiyue1,2; Wu, Tao3; Zhu, Yue1,2; Li, Xuning2,4,5; Li, Mingrun1; Lu, Ruifeng3; Wang, Junhu4,5; Zhu, Xuefeng1; Yang, Weishen1
Source PublicationACS ENERGY LETTERS
2017-07-01
DOI10.1021/acsenergylett.7b00434
Volume2Issue:7Pages:1654-1660
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
WOS KeywordRAY-ABSORPTION SPECTROSCOPY ; ELECTROCHEMICAL-BEHAVIOR ; WATER OXIDATION ; ELECTRONIC-STRUCTURE ; LITHIUM NICKELATE ; CATHODE MATERIAL ; AIR BATTERIES ; IRON ; OXIDE ; HYDROXIDE
AbstractLiNi1-xFexO2 (0 <= x <= 0.3) and LiyNi0.8Fe0.2O2 (0.8 <= y <= 1.2) catalysts for the oxygen evolution reaction (OER) were systematically investigated to discover the influence of the composition and layered structure on electrochemical activity. LiNi0.8Fe0.2O2 exhibits OER activity that is better than that of LiNiO2 and other Fe substituted LiNiO2 catalysts, while Li1.2Ni0.8Fe0.2O2 shows OER activity that is much higher than that of LiNi0.8Fe0.2O2 and Li0.8Ni0.8Fe0.2O2 . The best OER activity is achieved on Li1.2Ni0.8Fe0.2O2 with a Tafel slope of 59 mV dec(-1) and a current density of 10 mA cm(-2) at an overpotential of 302 mV, better than that for the benchmark IrO2 catalyst. Combined with the density functional theory calculations, the enhanced OER activity is mainly attributed to the unique electronic structure derived from the interaction of Li, Ni, and Fe in the materials and the layered structure which plays an important role in stabilizing the high valence states of Ni and Fe during the OER.
Language英语
WOS IDWOS:000405979900024
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152045
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Jiangsu, Peoples R China
4.Chinese Acad Sci, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China
5.Chinese Acad Sci, Lab Catalysts & New Mat Aerosp, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Kaiyue,Wu, Tao,Zhu, Yue,et al. Layered Fe-Substituted LiNiO2 Electrocatalysts for High-Efficiency Oxygen Evolution Reaction[J]. ACS ENERGY LETTERS,2017,2(7):1654-1660.
APA Zhu, Kaiyue.,Wu, Tao.,Zhu, Yue.,Li, Xuning.,Li, Mingrun.,...&Yang, Weishen.(2017).Layered Fe-Substituted LiNiO2 Electrocatalysts for High-Efficiency Oxygen Evolution Reaction.ACS ENERGY LETTERS,2(7),1654-1660.
MLA Zhu, Kaiyue,et al."Layered Fe-Substituted LiNiO2 Electrocatalysts for High-Efficiency Oxygen Evolution Reaction".ACS ENERGY LETTERS 2.7(2017):1654-1660.
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