Monitoring oxygen-vacancy ratio in NiFe-based electrocatalysts during oxygen evolution reaction in alkaline electrolyte

被引：19

作者：

Kim, Hyunki ^{[1
]}

Kim, Junhyeong ^{[1
]}

Ahn, Sang Hyun ^{[1
]}

机构：

[1] Chung Ang Univ, Sch Chem Engn & Mat Sci, 84 Heukseokno, Seoul 06974, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2019年 / 72卷

基金：

新加坡国家研究基金会;

关键词：

Electrodeposition; NiFe-based electrocatalysts; Oxygen evolution reaction; Oxygen-vacancy ratio; Long-term stability; EVOLVING REACTION; NANOSHEETS; STABILITY; ARRAYS; OXIDES; ELECTRODEPOSITION; NANOPARTICLES; TEMPERATURE; NANOWIRES; CATALYST;

D O I：

10.1016/j.jiec.2018.12.028

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

High oxygen-vacancy ratio has been recognized as an important criterion for oxygen evolving electrocatalysts to achieve high catalytic performance. Herein, we report changes in the oxygen-vacancy ratio during long-term stability tests. NiFe-based electrocatalysts containing various anions were prepared by a simple electrodeposition. After the fabrication procedure was optimized, the S-doped NiFe oxide electrocatalyst exhibited higher intrinsic activity than others in an alkaline electrolyte because it had the highest oxygen-vacancy ratio. During oxygen evolution at a constant positive potential, the intrinsic activity of the S-doped NiFe oxide electrocatalyst showed a significant correlation with the oxygen-vacancy ratio and surface morphology as a function of time. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：273 / 280

页数：8

共 62 条

[1] Comparative assessment of hydrogen production methods from renewable and non-renewable sources [J].

Acar, Canan ;

Dincer, Ibrahim .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2014, 39 (01) :1-12

[2] Effect of morphology of electrodeposited Ni catalysts on the behavior of bubbles generated during the oxygen evolution reaction in alkaline water electrolysis [J].

Ahn, Sang Hyun ;

Choi, Insoo ;

Park, Hee-Young ;

Hwang, Seung Jun ;

Yoo, Sung Jong ;

Cho, EunAe ;

Kim, Hyoung-Juhn ;

Henkensmeier, Dirk ;

Nam, Suk Woo ;

Kim, Soo-Kil ;

Jang, Jong Hyun .

CHEMICAL COMMUNICATIONS, 2013, 49 (81) :9323-9325

[3] Nickel iron boride nanosheets on rGO for active electrochemical water oxidation [J].

An, Lihua ;

Sun, Yanfang ;

Zong, Yingxia ;

Liu, Qingyun ;

Guo, Jinxue ;

Zhang, Xiao .

JOURNAL OF SOLID STATE CHEMISTRY, 2018, 265 :135-139

[4]

[Anonymous], 2015, ANGEW CHEM-GER EDIT

[5]

[Anonymous], 2016, ANGEW CHEM

[6] Promoting Oxygen Evolution Reactions through Introduction of Oxygen Vacancies to Benchmark NiFe-OOH Catalysts [J].

Asnavandi, Majid ;

Yin, Yichun ;

Li, Yibing ;

Sun, Chenghua ;

Zhao, Chuan .

ACS ENERGY LETTERS, 2018, 3 (07) :1515-1520

[7] Seamlessly Conductive 3D Nanoarchitecture of Core-Shell Ni-Co Nanowire Network for Highly Efficient Oxygen Evolution [J].

Bae, Seok-Hu ;

Kim, Ji-Eun ;

Randriamahazaka, Hyacinthe ;

Moon, Song-Yi ;

Park, Jeong-Young ;

Oh, Il-Kwon .

ADVANCED ENERGY MATERIALS, 2017, 7 (01)

[8] Cobalt-Iron (Oxy)hydroxide Oxygen Evolution Electrocatalysts: The Role of Structure and Composition on Activity, Stability, and Mechanism [J].

Burke, Michaela S. ;

Kast, Matthew G. ;

Trotochaud, Lena ;

Smith, Adam M. ;

Boettcher, Shannon W. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (10) :3638-3648

[9] Facile Electrodeposition of Ni-Cu-P Dendrite Nanotube Films with Enhanced Hydrogen Evolution Reaction Activity and Durability [J].

Cao, Meng ;

Xue, Zhe ;

Niu, Jingjing ;

Qin, Jiaqian ;

Sawangphruk, Montree ;

Zhang, Xinyu ;

Liu, Riping .

ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (41) :35224-35233

[10] One-step etectrodeposition of a hierarchically structured S-doped NiCo film as a highly-efficient electrocatalyst for the hydrogen evolution reaction [J].

Che, Qijun ;

Bai, Ningning ;

Li, Qing ;

Chen, Xinhong ;

Tan, Ya ;

Xu, Xi .

NANOSCALE, 2018, 10 (32) :15238-15248

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