Enhancing Oxygen Evolution Reaction through Modulating Electronic Structure of Trimetallic Electrocatalysts Derived from Metal-Organic Frameworks

被引：194

作者：

Li, Yuwen ^{[1
]}

Zhao, Tao ^{[1
]}

Lu, Mengting ^{[1
]}

Wu, Yuhang ^{[1
]}

Xie, Yuanbo ^{[1
]}

Xu, Hui ^{[2
]}

Gao, Junkuo ^{[1
]}

Yao, Juming ^{[1
]}

Qian, Guodong ^{[3
]}

Zhang, Qichun ^{[4
]}

机构：

[1] Zhejiang Sci Tech Univ, Key Lab Adv Text Mat & Mfg Technol, Sch Mat Sci & Engn, Inst Fiber Based New Energy Mat,Minist Educ, Hangzhou 310018, Zhejiang, Peoples R China

[2] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China

[3] Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Cyrus Tang Ctr Sensor Mat & Applicat, Hangzhou 310027, Zhejiang, Peoples R China

[4] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

SMALL | 2019年 / 15卷 / 43期

基金：

中国国家自然科学基金;

关键词：

electrocatalysis; electronic structure; metal-organic frameworks; multimetal doping; oxygen evolution reaction; EFFICIENT; CATALYST;

D O I：

10.1002/smll.201901940

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The construction of efficient, durable, and non-noble metal electrocatalysts for oxygen evolution reaction (OER) is of great value but challenging. Herein, a facile method is developed to synthesize a series of trimetallic (W/Co/Fe) metal-organic frameworks (MOFs)-derived carbon nanoflakes (CNF) with various Fe content, and an Fe-dependent volcano-type plot can be drawn out for WCoFex-CNF. The optimized WCoFe0.3-CNF (when the feed ratio of Fe/Co is 0.3) demonstrates superior electrocatalytic performance with a low overpotential of only 254 mV@10 mA cm(-2) and excellent durability of 100 h. Further researches show that appropriate amount of iron doping can regulate the electronic structure, resulting in a favorable synergistic environment. This method may stimulate the exploration of electrocatalysts by utilizing MOFs as precursors while realizing electronic modulation by multimetal doping.

引用

页数：6

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