Fabrication of excellent bifunctional electrocatalyst FeNi-LDH@L-NiCoP using ZIF as a sacrifice template for alkaline electrolysis of water

IF 3.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Molecular Catalysis Pub Date : 2025-03-22 DOI:10.1016/j.mcat.2025.115052

Boxuan Zhang , Jinxing Cui , Zhifang Li , Changlong Yang , Weiwei Dong , Ke Li

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Abstract

The key to generating hydrogen by electrolysis of water is to design the low-cost and high-catalytic activity catalyst. In this paper, FeNi-Layered Double Hydroxide@L-NCP/nickel foam (FeNi-LDH@L-NCP/NF) is prepared using leaf-like zeolitic imidazolate framework (L-Co-ZIF) as the precursor, phosphating to produce NiCoP (denoted as L-NCP) and then growing FeNi layered double hydroxide (FeNi-LDH) through a hydrothermal crystallization method. FeNi-LDH@L-NCP/NF is an exceptional catalyst for hydrogen evolution reaction (HER) as well as oxygen evolution reaction (OER). It shows the low overpotential of FeNi-LDH@L-NCP/NF and the values are 106 and 220 mV at 10 mA·cm^-2 in 1 M KOH for HER and OER, respectively. This is because the more ordered L-NCP is formed due to the role of the ZIF templates, which favors rapid charge transfer between the electrolyte and the electrode, thereby promoting its catalytic performance. The synergistic effect of FeNi-LDH and L-NCP also contributes to activity.

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来源期刊

Molecular Catalysis Chemical Engineering-Process Chemistry and Technology

CiteScore

6.90

自引率

10.90%

发文量

700

审稿时长

40 days

期刊介绍： Molecular Catalysis publishes full papers that are original, rigorous, and scholarly contributions examining the molecular and atomic aspects of catalytic activation and reaction mechanisms. The fields covered are: Heterogeneous catalysis including immobilized molecular catalysts Homogeneous catalysis including organocatalysis, organometallic catalysis and biocatalysis Photo- and electrochemistry Theoretical aspects of catalysis analyzed by computational methods