Regulating the Electronic Structure of Metal-Organic Frameworks by Introducing Mn for Enhanced Oxygen Evolution Activity

被引：4

作者：

Zhang, Hao ^{[1
]}

Sun, Na ^{[1
,3
]}

Si, Xiuwen ^{[1
]}

Zhang, Yuehong ^{[1
]}

Ding, Fu ^{[1
]}

Kong, Xiangru ^{[2
]}

Sun, Yaguang ^{[1
]}

机构：

[1] Shenyang Univ Chem Technol, Key Lab Inorgan Mol Based Chem Liaoning Prov, Shenyang 110142, Peoples R China

[2] Northeastern Univ, Coll Sci, Shenyang 110819, Peoples R China

[3] Nankai Univ, Natl Inst Adv Mat TKL Met & Mol Based Mat Chem, Sch Mat Sci & Engn, Tianjin 300350, Peoples R China

来源：

INORGANIC CHEMISTRY | 2024年 / 63卷 / 06期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

WATER; EFFICIENT; ELECTROCATALYSTS; NANOSHEETS; CATALYSTS; NI;

D O I：

10.1021/acs.inorgchem.3c03769

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The construction of low-cost and highly efficient oxygen evolution electrocatalysts is paramount for clean and sustainable hydrogen energy. In recent years, metal-organic framework (MOF) OER electrocatalysts have attracted tremendous research attention. Herein, we report a simple and facile strategy to construct bimetallic MOFs (named CoMn0.01) for enhancing OER catalytic performance. Significantly, CoMn0.01 exhibited remarkable OER activity (255 mV at 10 mA cm(-2)) and a low Tafel slope of 66 mV dec(-1), superior to those of commercial benchmark electrocatalysts (RuO2, 352 mV, 178 mV dec(-1)). Besides, the catalyst demonstrated outstanding longevity for 144 h at a current density of 100 mA cm (-2). Mn doping can regulate the electronic structure of Co MOFs, which optimizes charge transfer capability and improves conductivity.

引用

页码：2997 / 3004

页数：8

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