S- and N-Co-Doped Carbon-Nanoplate-Encased Ni Nanoparticles Derived from Dual-Ligand-Assembled Ni-MOFs as Efficient Electrocatalysts for the Oxygen Evolution Reaction

被引：0

作者：

Han, Huijuan ^{[1
]}

Zhang, Yalei ^{[1
]}

Zhou, Chunrui ^{[1
]}

Yun, Haixin ^{[1
]}

Kang, Yiwen ^{[1
]}

Du, Kexin ^{[1
]}

Wang, Jianying ^{[2
]}

Chao, Shujun ^{[3
]}

Wang, Jichao ^{[1
]}

机构：

[1] Henan Inst Sci & Technol, Sch Chem & Chem Engn, Xinxiang 453003, Peoples R China

[2] Henan Prov Ecol Environm Monitoring & Safety Ctr, Dept Ecol & Environm Henan Prov, Zhengzhou 450046, Peoples R China

[3] Xinxiang Med Univ, Xinxiang Engn Technol Res Ctr Funct Med Nanomat, Sch Basic Med Sci, Xinxiang 453003, Peoples R China

来源：

MOLECULES | 2025年 / 30卷 / 04期

基金：

中国国家自然科学基金;

关键词：

metal-organic frameworks; heteroatom-doped electrocatalysts; oxygen evolution reactions; SUPERIOR BIFUNCTIONAL ELECTROCATALYSTS; NANOPOROUS CARBON; REDUCTION; NITROGEN; HYBRIDS; SHELL;

D O I：

10.3390/molecules30040820

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：

To achieve the "double carbon" goal, it is urgent to reform the energy system. The oxygen evolution reaction (OER) is a vital semi-reaction for many new energy-storage and conversion devices. Metal nanoparticles embedded in heteroatom-doped carbon materials prepared by the pyrolyzing of metal-organic frameworks (MOFs) have been a key route to obtain high-performance electrochemical catalysts. Herein, a nanocatalyst embedding Ni nanoparticles into S- and N-co-doped carbon nanoplate (Ni NPs@SN-CNP) has been synthesized by pyrolysis of a Ni-MOF precursor. The prepared Ni NPs@SN-CNP exhibits superior oxygen evolution performance with an overpotential of 256 mV to attain 10 mA cm-2 and a low Tafel slope value of 95 mV dec-1. Moreover, a self-assembled overall-water-splitting cell with Ni NPs@SN-CNP/NF||Pt-C/NF achieves a low potential of 1.56 V at 10 mA cm-2 and a high cycling stability for at least 10 h. The improvement in this performance is benefit from its large surface area, unique morphology, and the nanostructure of the electrocatalyst. This study presents a novel and simple approach to designing high-performance OER catalysts.

引用

页数：12

共 53 条

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