NiFe Hydroxide Lattice Tensile Strain: Enhancement of Adsorption of Oxygenated Intermediates for Efficient Water Oxidation Catalysis

被引：399

作者：

Zhou, Daojin ^{[1
,2
]}

Wang, Shiyuan ^{[1
,3
]}

Jia, Yin ^{[1
,3
]}

Xiong, Xuya ^{[1
]}

Yang, Hongbin ^{[2
,4
]}

Liu, Song ^{[5
]}

Tang, Jialun ^{[6
]}

Zhang, Junming ^{[2
]}

Liu, Dong ^{[2
]}

Zheng, Lirong ^{[7
]}

Kuang, Yun ^{[1
]}

Sun, Xiaoming ^{[1
,3
]}

Liu, Bin ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore

[3] Beijing Univ Chem Technol, Coll Energy, Beijing 100029, Peoples R China

[4] Suzhou Univ Sci & Technol, Inst Mat Sci & Devices, Suzhou 215009, Peoples R China

[5] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

[6] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Nanophoton & Ultrafine Optoelect, Beijing 100029, Peoples R China

[7] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 03期

基金：

中国国家自然科学基金;

关键词：

ball-milling; NiFe catalysts; oxygen evolution; tensile strain; EVOLUTION REACTION; OXIDE CATALYSTS; METAL-OXIDES; FE-SITES; REDUCTION; ELECTROCHEMISTRY; ELECTROCATALYSTS; IDENTIFICATION; NANOPARTICLES; REACTIVITY;

D O I：

10.1002/anie.201809689

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The binding strength of reactive intermediates with catalytically active sites plays a crucial role in governing catalytic performance of electrocatalysts. NiFe hydroxide offers efficient oxygen evolution reaction (OER) catalysis in alkaline electrolyte, however weak binding of oxygenated intermediates on NiFe hydroxide still badly limits its catalytic activity. Now, a facile ball-milling method was developed to enhance binding strength of NiFe hydroxide to oxygenated intermediates via generating tensile strain, which reduced the anti-bonding filling states in the d orbital and thus facilitated oxygenated intermediates adsorption. The NiFe hydroxide with tensile strain increasing after ball-milling exhibits an OER onset potential as low as 1.44 V (vs. reversible hydrogen electrode) and requires only a 270 mV overpotential to reach a water oxidation current density of 10 mA cm(-2).

引用

页码：736 / 740

页数：5

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