Green Cobalt Oxide (CoOx) Film with Nanoribbon Structures Electrodeposited from the BF2-Annulated Cobaloxime Precursor for Efficient Water Oxidation

被引：45

作者：

Han, Ali ^{[1
]}

Wu, Haotian ^{[1
]}

Sun, Zijun ^{[1
]}

Jia, Hongxing ^{[1
]}

Yan, Zhiping ^{[1
]}

Ma, Hao ^{[1
]}

Liu, Xiang ^{[1
]}

Du, Pingwu ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2014年 / 6卷 / 14期

基金：

中国国家自然科学基金;

关键词：

water splitting; cobalt oxide; oxygen production; electrodeposition; OXYGEN-EVOLVING CATALYST; ARTIFICIAL PHOTOSYNTHESIS; HYDROGEN-PRODUCTION; EVOLUTION; SYSTEM; PLANET;

D O I：

10.1021/am500830z

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, we report for the first time on the use of a water-soluble BF2-annulated cobaloxime, Co-(dmgBF(2))(2)(OH2)(2) (Co-DMB, dmgBF(2) = difluoroboryl-dimethylglyoxime), as a catalyst precursor for electrocatalytic water oxidation. Oxygen gas bubbles were clearly produced on the FTO electrode at a low overpotential under neutral pH conditions containing Co-DMB. Interestingly, stable green films were produced under these conditions. The current densities can reach to >5 mA/cm(2) at 1.1 V and >10 mA/cm(2) at 1.5 V (vs Ag/AgCl). The morphologies of the films showed nanoribbon structures, which were characterized by scanning electron microscope (SEM), energy-dispersive X-ray analysis (EDX), and X-ray photoelectron spectroscopy (XPS).

引用

页码：10929 / 10934

页数：6

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