Cobalt (oxy)hydroxide nanosheet arrays with exceptional porosity and rich defects as a highly efficient oxygen evolution electrocatalyst under neutral conditions

被引：20
作者：
Chen, Minqi [1 ]
Xie, Yanyu [1 ]
Wu, Jun-Xi [1 ]
Huang, Huanfeng [1 ]
Teng, Jun [1 ]
Wang, Dawei [1 ]
Fan, Yanan [1 ]
Jiang, Ji-Jun [1 ]
Wang, Hai-Ping [1 ]
Su, Cheng-Yong [1 ]
机构：
[1] Sun Yat Sen Univ, MOE Lab Bioinorgan & Synthet Chem, Lehn Inst Funct Mat, Sch Chem, Guangzhou 510275, Guangdong, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2019年 / 7卷 / 17期
关键词：
WATER OXIDATION; PERFORMANCE; TRANSITION; CO(OH)(2); STABILITY; VACANCIES; HYDROGEN; DESIGN; NI; CO;
D O I：
10.1039/c9ta00380k
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
An oxidation-mediated defect and porosity enrichment strategy is developed for the synthesis of a new electrocatalyst consisting of cobalt (oxy) hydroxide nanosheet arrays (denoted as CoOxHy NSAs) grown on carbon cloth (CC), which feature a 3D hierarchical nanostructure with exceptional porosity and rich defects. The CoOxHy/CC shows exceptional activity and stability for the oxygen evolution reaction under neutral conditions, as indicated by its high current density of 38 mA cm (2) at 1.8 V, small Tafel slope of 121 mV dec (1), low overpotential of 430 mV, and 24 h durability at 10 mA cm (2) in 0.1 M phosphate buffer solution (PBS).
引用
收藏
页码：10217 / 10224
页数：8
相关论文
共 55 条
[1]   Reversible amorphization and the catalytically active state of crystalline Co3O4 during oxygen evolution [J].
Bergmann, Arno ;
Martinez-Moreno, Elias ;
Teschner, Detre ;
Chernev, Petko ;
Gliech, Manuel ;
de Araujo, Jorge Ferreira ;
Reier, Tobias ;
Dau, Holger ;
Strasser, Peter .
NATURE COMMUNICATIONS, 2015, 6
[2]   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
[3]   Oxygen-Containing Amorphous Cobalt Sulfide Porous Nanocubes as High-Activity Electrocatalysts for the Oxygen Evolution Reaction in an Alkaline/Neutral Medium [J].
Cai, Pingwei ;
Huang, Junheng ;
Chen, Junxiang ;
Wen, Zhenhai .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2017, 56 (17) :4858-4861
[4]   Hydrothermal-synthesized Co(OH)2 nanocone arrays for supercapacitor application [J].
Cao, F. ;
Pan, G. X. ;
Tang, P. S. ;
Chen, H. F. .
JOURNAL OF POWER SOURCES, 2012, 216 :395-399
[5]   Hydrothermal synthesis of β-Co(OH)2 nanoplatelets: A novel catalyst for CO oxidation [J].
Deng, Dongyang ;
Xing, Xinxin ;
Chen, Nan ;
Li, Yuxiu ;
Wang, Yude .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2017, 100 :107-114
[6]   In situ synthesis of a MoS2/CoOOH hybrid by a facile wet chemical method and the catalytic oxidation of CO in epoxy resin during decomposition [J].
Feng, Xiaming ;
Xing, Weiyi ;
Song, Lei ;
Hu, Yuan .
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (33) :13299-13308
[7]   Pine needle β-Co(OH)2 grown on Ni foam substrate for high specific capacitance and good cycling stability as advanced electrochemical pseudocapacitor materials [J].
Fu, Weidong ;
Long, Lu ;
Wang, Meng ;
Yao, Yadong ;
Wei, Niandong ;
Yan, Minglei ;
Yin, Guangfu ;
Liao, Xiaoming ;
Huang, Zhongbing ;
Chen, Xianchun .
JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 631 :82-85
[8]   Transition-Metal (Co, Ni, and Fe)-Based Electrocatalysts for the Water Oxidation Reaction [J].
Han, Lei ;
Dong, Shaojun ;
Wang, Erkang .
ADVANCED MATERIALS, 2016, 28 (42) :9266-9291
[9]   Three-dimensional printed cellular stainless steel as a high-activity catalytic electrode for oxygen evolution [J].
Huang, Xiaolei ;
Chang, Shuai ;
Siang, Wee ;
Lee, Vincent ;
Ding, Jun ;
Xue, Jun Min .
JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (34) :18176-18182
[10]   Earth-Abundant Heterogeneous Water Oxidation Catalysts [J].
Hunter, Bryan M. ;
Gray, Harry B. ;
Muller, Astrid M. .
CHEMICAL REVIEWS, 2016, 116 (22) :14120-14136
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