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Chen H, Ma Y, Han Y, Mao X, Hu Y, Zhao X, Dong Q, Wen B, Du A, Wang X, Lyu X, Jia Y. Ligand and Strain Synergistic Effect in NiFeP 0.32 LDH for Triggering Efficient Oxygen Evolution Reaction. Small 2024:e2309689. [PMID: 38258384 DOI: 10.1002/smll.202309689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/02/2024] [Indexed: 01/24/2024]
Abstract
Developing efficient water-splitting electrocatalysts to accelerate the slow oxygen evolution reaction (OER) kinetics is urgently desired for hydrogen production. Herein, ultralow phosphorus (P)-doped NiFe LDH (NiFePx LDH) with mild compressive strain is synthesized as an efficient OER electrocatalyst. Remarkably, NiFePx LDH with the phosphorus mass ratio of 0.32 wt.% and compressive strain ratio of 2.53% (denoted as NiFeP0.32 LDH) exhibits extraordinary OER activity with an overpotential as low as 210 mV, which is superior to that of commercial IrO2 and other reported P-based OER electrocatalysts. Both experimental performance and density function theory (DFT) calculation demonstrate that the doping of P atoms can generate covalent Fe─P coordination bonds and lattice distortion, thus resulting in the consequent depletion of electrons around the Fe active center and the downward shift of the d-band center, which can lead to a weaker adsorption ability of * O intermediate to improve the catalytic performance of NiFeP0.32 LDH for OER. This work provides novel insights into the distinctive coordinated configuration of P in NiFePx LDH, which can result in superior catalytic performance for OER.
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Affiliation(s)
- Hao Chen
- School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China
- Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering & Zhejiang Carbon Neutral Innovation Institute, Zhejiang University of Technology (ZJUT), Hangzhou, 310014, P. R. China
- Moganshan Institute ZJUT, Kangqian District, Deqing, 313200, P. R. China
| | - Yongbing Ma
- Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering & Zhejiang Carbon Neutral Innovation Institute, Zhejiang University of Technology (ZJUT), Hangzhou, 310014, P. R. China
- Moganshan Institute ZJUT, Kangqian District, Deqing, 313200, P. R. China
| | - Yun Han
- Queensland Micro- and Nanotechnology Centre, School of Engineering and Built Environment, Griffith University, Nathan Campus, Brisbane, QLD, 4111, Australia
| | - Xin Mao
- School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology, Gardens Point Campus, Brisbane, 4001, Australia
| | - Yongbin Hu
- School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China
| | - Xin Zhao
- School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China
| | - Qinglong Dong
- School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China
| | - Bo Wen
- School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China
| | - Aijun Du
- School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology, Gardens Point Campus, Brisbane, 4001, Australia
| | - Xin Wang
- Moganshan Institute ZJUT, Kangqian District, Deqing, 313200, P. R. China
- College of Chemical Engineering, Zhejiang University of Technology (ZJUT), Hangzhou, 310014, P. R. China
| | - Xiao Lyu
- School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China
| | - Yi Jia
- Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering & Zhejiang Carbon Neutral Innovation Institute, Zhejiang University of Technology (ZJUT), Hangzhou, 310014, P. R. China
- Moganshan Institute ZJUT, Kangqian District, Deqing, 313200, P. R. China
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