A Cobalt-Based Film for Highly Efficient Electrocatalytic Water Oxidation in Neutral Aqueous Solution

被引：13

作者：

Chen, Hu ^{[1
]}

Gao, Yan ^{[1
]}

Sun, Licheng ^{[1
,2
]}

机构：

[1] Dalian Univ Technol DUT, State Key Lab Fine Chem, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, Dalian 116024, Peoples R China

[2] KTH Royal Inst Technol, Dept Chem, Sch Chem Sci & Engn, S-10044 Stockholm, Sweden

来源：

CHEMCATCHEM | 2016年 / 8卷 / 17期

基金：

中国国家自然科学基金;

关键词：

catalyst films; cobalt; electrodeposition; oxidation; water splitting; OXYGEN-EVOLVING CATALYST; EVOLUTION; COMPLEX; OXIDE; IRON; PHOSPHATE; NICKEL; LIGAND;

D O I：

10.1002/cctc.201600617

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：

A cobalt-based film (Co-Hi) for water oxidation was prepared in 2-[4-(2-hydroxyethyl) piperazin-1-yl]ethanesulfonic acid buffer at pH 7.0 through a unique cyclic voltammetry electrodeposition method by applying a wide scan range from 1.40 to -1.00 V versus normal hydrogen electrode (NHE). This catalyst film displayed highly efficient activity during oxygen evolution in neutral aqueous solution. An impressive current density of more than 1.5 mAcm(-2) that was stable over a prolonged time period was obtained with a remarkably low onset overpotential of 230 mV in 0.1 M phosphate buffer (pH 7.0).

引用

收藏

页码：2757 / 2760

页数：4

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