Ligand and Strain Synergistic Effect in NiFeP 0.32 LDH for Triggering Efficient Oxygen Evolution Reaction.

Autor: Chen H; 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., Ma Y; 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., Han Y; Queensland Micro- and Nanotechnology Centre, School of Engineering and Built Environment, Griffith University, Nathan Campus, Brisbane, QLD, 4111, Australia., Mao X; School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology, Gardens Point Campus, Brisbane, 4001, Australia., Hu Y; School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China., Zhao X; School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China., Dong Q; School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China., Wen B; School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, 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., Wang X; Moganshan Institute ZJUT, Kangqian District, Deqing, 313200, P. R. China.; College of Chemical Engineering, Zhejiang University of Technology (ZJUT), Hangzhou, 310014, P. R. China., Lyu X; School of Materials Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China., Jia Y; 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.
Jazyk: angličtina
Zdroj: Small (Weinheim an der Bergstrasse, Germany) [Small] 2024 Jun; Vol. 20 (26), pp. e2309689. Date of Electronic Publication: 2024 Jan 23.
DOI: 10.1002/smll.202309689
Abstrakt: 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 (NiFeP x LDH) with mild compressive strain is synthesized as an efficient OER electrocatalyst. Remarkably, NiFeP x LDH with the phosphorus mass ratio of 0.32 wt.% and compressive strain ratio of 2.53% (denoted as NiFeP 0.32 LDH) exhibits extraordinary OER activity with an overpotential as low as 210 mV, which is superior to that of commercial IrO 2 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 NiFeP 0.32 LDH for OER. This work provides novel insights into the distinctive coordinated configuration of P in NiFeP x LDH, which can result in superior catalytic performance for OER.
(© 2024 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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