Ultra-thin wrinkled NiOOH-NiCr2O4 nanosheets on Ni foam: an advanced catalytic electrode for oxygen evolution reaction

被引：84

作者：

Zhao, Jinxiu ^{[1
]}

Ren, Xiang ^{[1
]}

Han, Qingzhi ^{[1
]}

Fan, Dawei ^{[1
]}

Sun, Xu ^{[1
]}

Kuang, Xuan ^{[1
]}

Wei, Qin ^{[1
]}

Wu, Dan ^{[1
]}

机构：

[1] Univ Jinan, Sch Chem & Chem Engn, Key Lab Interfacial React & Sensing Anal Univ Sha, Jinan 250022, Shandong, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2018年 / 54卷 / 39期

基金：

中国国家自然科学基金;

关键词：

NANOWIRE ARRAY; WATER OXIDATION; EFFICIENT; ELECTROCATALYST; PERFORMANCE; NANOARRAY; NICR2O4; DESIGN; CR2O3;

D O I：

10.1039/c8cc01002a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Here, we report the in situ electrochemical conversion of NiCr2O4 on Ni foam prepared using a hydrothermal strategy to give ultra-thin wrinkled NiOOH-NiCr2O4 amorphous-crystalline nanosheets on Ni foam (NiOOH-NiCr2O4/NF) via anode oxidation in 1.0 M KOH. Owing to the coordination of NiCr2O4 and NiOOH, NiOOH-NiCr2O4 /NF shows superior catalytic activity toward the oxygen evolution reaction (OER) with the demand of overpotential as low as 271 mV to drive a geometrical current density of 20 mA cm(-2) under alkaline conditions. Notably, it also displays strong long-term electrochemical durability for at least 30 h.

引用

页码：4987 / 4990

页数：4

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