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Electron Accumulation Induced by Electron Injection-Incomplete Discharge on NiFe LDH for Enhanced Oxygen Evolution Reaction.
Zhang, Rongrong; Han, Yun; Wu, Qilong; Lu, Min; Liu, Guangsheng; Guo, Zhangtao; Zhang, Yaowen; Zeng, Jianrong; Wu, Xiaofeng; Zhang, Dongdong; Wu, Liyun; Song, Nan; Yuan, Pei; Du, Aijun; Huang, Keke; Chen, Jun; Yao, Xiangdong.
Affiliation
  • Zhang R; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
  • Han Y; Queensland Micro- and Nanotechnology Centre, School of Engineering and Built Environment, Griffith University, Nathan Campus, Nathan, QLD, 4111, Australia.
  • Wu Q; IPRI, AIIM Facility, Innovation Campus, University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia.
  • Lu M; State Key Laboratory of Applied Organic Chemistry, Frontiers Science Center for Rare Isotopes, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
  • Liu G; Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, PA, 15282, USA.
  • Guo Z; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
  • Zhang Y; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
  • Zeng J; Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, P. R. China.
  • Wu X; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
  • Zhang D; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
  • Wu L; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
  • Song N; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
  • Yuan P; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350002, P. R. China.
  • Du A; School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology Gardens Point Campus, Brisbane, 4001, Australia.
  • Huang K; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
  • Chen J; IPRI, AIIM Facility, Innovation Campus, University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia.
  • Yao X; State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
Small ; 20(34): e2402397, 2024 Aug.
Article in En | MEDLINE | ID: mdl-38634268
ABSTRACT
Optimizing the local electronic structure of electrocatalysts can effectively lower the energy barrier of electrochemical reactions, thus enhancing the electrocatalytic activity. However, the intrinsic contribution of the electronic effect is still experimentally unclear. In this work, the electron injection-incomplete discharge approach to achieve the electron accumulation (EA) degree on the nickel-iron layered double hydroxide (NiFe LDH) is proposed, to reveal the intrinsic contribution of EA toward oxygen evolution reaction (OER). Such NiFe LDH with EA effect results in only 262 mV overpotential to reach 50 mA cm-2, which is 51 mV-lower compared with pristine NiFe LDH (313 mV), and reduced Tafel slope of 54.8 mV dec-1 than NiFe LDH (107.5 mV dec-1). Spectroscopy characterizations combined with theoretical calculations confirm that the EA near concomitant Vo can induce a narrower energy gap and lower thermodynamic barrier to enhance OER performance. This study clarifies the mechanism of the EA effect on OER activity, providing a direct electronic structure modulation guideline for effective electrocatalyst design.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Small / Small (Weinh., Internet) / Small (Weinheim. Internet) Journal subject: ENGENHARIA BIOMEDICA Year: 2024 Document type: Article Country of publication:
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Small / Small (Weinh., Internet) / Small (Weinheim. Internet) Journal subject: ENGENHARIA BIOMEDICA Year: 2024 Document type: Article Country of publication: