Exploring the Performance Improvement of the Oxygen Evolution Reaction in a Stable Bimetal-Organic Framework System

被引：397

作者：

Wang, Xiao-Li ^{[1
]}

Dong, Long-Zhang ^{[1
]}

Qiao, Man ^{[1
]}

Tang, Yu-Jia ^{[1
]}

Liu, Jiang ^{[1
]}

Li, Yafei ^{[1
]}

Li, Shun-Li ^{[1
]}

Su, Jia-Xin ^{[1
]}

Lan, Ya-Qian ^{[1
]}

机构：

[1] Nanjing Normal Univ, Sch Chem & Mat Sci, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Jiangsu Key Lab New Power Batteries, 1 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2018年 / 57卷 / 31期

关键词：

bimetallic electrocatalysts; clusters; iron; metal-organic frameworks; oxygen evolution reaction; BIFUNCTIONAL ELECTROCATALYST; HYDROGEN GENERATION; WATER OXIDATION; EFFICIENT; REDUCTION; PHOSPHIDES; CATALYSIS; ARRAYS; NI;

D O I：

10.1002/anie.201803587

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Despite wide applications of bimetallic electrocatalysis in oxygen evolution reaction (OER) owing to their superior performance, the origin of the improved performance remains elusive. The underlying mechanism was explored by designing and synthesizing a series of stable metal-organic frameworks (MOFs: NNU-21-24) based on trinuclear metal carboxylate clusters and tridentate carboxylate ligands. Among the examined stable MOFs, NNU-23 exhibits the best OER performance; particularly, compared with monometallic MOFs, all the bimetallic MOFs display improved OER activity. DFT calculations and experimental results demonstrate that introduction of the second metal atom can improve the activity of the original atom. The proposed model of bimetallic electrocatalysts affecting their OER performance can facilitate design of efficient bimetallic catalysts for energy storage and conversion, and investigation of the related catalytic mechanisms.

引用

页码：9660 / 9664

页数：5

共 51 条

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