Hierarchical CuCo2S4 nanoarrays for high-efficient and durable water oxidation electrocatalysis

被引：88
作者：
Yang, Lin [1 ]
Xie, Lisi [1 ]
Ren, Xiang [1 ]
Wang, Ziqiang [1 ]
Liu, Zhiang [2 ]
Du, Gu [3 ]
Asiri, Abdullah M. [4 ]
Yao, Yadong [5 ]
Sun, Xuping [1 ]
机构：
[1] Sichuan Univ, Coll Chem, Chengdu 610064, Sichuan, Peoples R China
[2] Qufu Normal Univ, Coll Chem & Chem Engn, Qufu 273165, Shandong, Peoples R China
[3] Chengdu Inst Geol & Mineral Resources, Chengdu 610081, Sichuan, Peoples R China
[4] King Abdulaziz Univ, Dept Chem, Fac Sci, Jeddah 21589, Saudi Arabia
[5] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Sichuan, Peoples R China
来源：
CHEMICAL COMMUNICATIONS | 2018年 / 54卷 / 01期
基金：
中国国家自然科学基金;
关键词：
OXYGEN EVOLUTION REACTION; BIFUNCTIONAL ELECTROCATALYST; SURFACE-AMORPHIZATION; ELECTRODE MATERIAL; NANOTUBE ARRAY; NANOWIRE ARRAY; CARBON CLOTH; PERFORMANCE; NANOSHEETS; CATALYST;
D O I：
10.1039/c7cc07259g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
It is highly attractive to design and develop earth-abundant electrocatalysts toward high-efficiency water oxidation electrocatalysis in alkaline media. In this communication, we report the in situ hydrothermal sulfidization preparation of a hierarchical CuCo2S4 nanoarray on copper foam (CuCo2S4/CF) from its CuCo2-hydroxide nanowire array precursor. When used as a 3D catalyst electrode for water oxidation, the as-prepared CuCo2S4/CF is superior in catalytic activity, demanding overpotentials of only 259 and 295 mV to achieve 60 and 100 mA cm(-2) in 1.0 M KOH, respectively. Moreover, it also shows strong electrochemical durability with high turnover frequency values of 0.069 and 0.390 mol O-2 s(-1) at overpotentials of 300 and 400 mV, respectively.
引用
收藏
页码：78 / 81
页数：4
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