Ultrarapid in Situ Synthesis of Cu2S Nanosheet Arrays on Copper Foam with Room-Temperature-Active Iodine Plasma for Efficient and Cost-Effective Oxygen Evolution

被引：144

作者：

He, Liangbo ^{[1
]}

Zhou, Dan ^{[1
]}

Lin, Yao ^{[1
]}

Ge, Ruixiang ^{[1
]}

Hou, Xiandeng ^{[2
]}

Sun, Xuping ^{[1
]}

Zheng, Chengbin ^{[1
]}

机构：

[1] Sichuan Univ, Coll Chem, Minist Educ, Key Lab Green Chem & Technol, Chengdu 610064, Sichuan, Peoples R China

[2] Sichuan Univ, Analyt & Test Ctr, Chengdu 610064, Sichuan, Peoples R China

来源：

ACS CATALYSIS | 2018年 / 8卷 / 05期

基金：

中国国家自然科学基金;

关键词：

active iodine plasma; Cu2S nanosheet arrays; electrocatalysts; oxygen evolution; DIELECTRIC-BARRIER DISCHARGE; WATER OXIDATION CATALYST; POROUS NANOWIRE ARRAYS; HYDROGEN EVOLUTION; OXIDE ELECTROCATALYST; ASSISTED SYNTHESIS; VAPOR GENERATION; HIGHLY EFFICIENT; COBALT-SULFIDE; ELECTRODEPOSITION;

D O I：

10.1021/acscatal.8b00032

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：

Developing simple and cost-effective methods for the rapid synthesis of oxygen evolution reaction (OER) electrocatalysts from earth-abundant elements is a highly desired yet challenging task. Herein we report a two-step strategy based on the use of a room-temperature- and atmospheric-pressure active iodine DBD plasma and an anion exchange reaction for the in situ generation of 3D Cu2S nanosheet arrays on Cu foam (Cu2S/CF). Owing to the advantages of this plasma-based approach, and the extremely rapid anion exchange reaction between the generated CuI and S2-, synthesis of the Cu2S/CF OER catalyst can be accomplished within 6 min. The porous 3D catalyst exhibited prominent electrocatalytic activity and persistent stability (>10 h) for OER with an overpotential of 336 mV to drive a geometrical current density of 20 mA cm(-2) in 1.0 M KOH, comparable to the performance of a noble-metal IrO2/CF electrode.

引用

页码：3859 / 3864

页数：11

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