A Dual-Function Fe-Doped Co3O4 Nanosheet Array for Efficient OER and HER in an Alkaline Medium

被引：0
作者：
Su, Yibo [1 ]
Liu, Bo [1 ]
Shi, Zijun [2 ]
Yan, Mei [1 ]
Ma, Tengfei [1 ]
机构：
[1] Inner Mongolia Univ Sci & Technol, Sch Chem & Chem Engn, Baotou 014010, Peoples R China
[2] Bur Sci & Technol Talent, Ordos High Tech Ind Dev Zone, Ordos 017000, Peoples R China
来源：
MOLECULES | 2025年 / 30卷 / 05期
关键词：
electrocatalysis; oxygen evolution reaction (OER); Ni foam; hydrogen evolution reactions (HER); d-band center shift; NICKEL FOAM;
D O I：
10.3390/molecules30051046
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The electrocatalysts of heteroatom-doped non-precious metal oxide materials are of great significance for efficient and low-cost electrochemical water-splitting systems. Herein, an innovative Fe-doped Co3O4 nanoflake (Fe-Co3O4/NF) on nickel foam has been developed, which exhibits excellent electrocatalytic activity for both hydrogen evolution reactions (HERs) and oxygen evolution reactions (OERs). Benefiting from the synergy of the charge redistribution and d-band center shift caused by doping engineering, the as-obtained Fe-Co3O4/NF shows both excellent HER (eta 10 = 196 mV) and OER (eta 10 = 290 mV) activities with low Tafel slopes (109 mV dec-1 for HER and 49 mV dec-1 for OER, respectively) and excellent stability. This work provides an effective method for designing and synthesizing bifunctional electrocatalysts with high activity and stability of metal oxide hybrids for the HER/OER.
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页数：11
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