3D crumpled RGO-Co3O4 photocatalysts for UV-induced hydrogen evolution reaction

被引：34
作者：
Chandrasekaran, Sundaram [1 ]
Choi, Won Mook [1 ]
Chung, Jin Suk [1 ]
Hur, Seung Hyun [1 ]
Kim, Eui Jung [1 ]
机构：
[1] Univ Ulsan, Sch Chem Engn, Ulsan 680749, South Korea
来源：
MATERIALS LETTERS | 2014年 / 136卷
基金：
新加坡国家研究基金会;
关键词：
Hydrogen evolution; Tafel plot; Exchange current density; Reduced graphene oxide; Cobalt oxide; OXYGEN REDUCTION; HIGH-PERFORMANCE; GRAPHENE; ELECTROCATALYSTS; NANOPARTICLES; CATALYST; SURFACES;
D O I：
10.1016/j.matlet.2014.07.179
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Three dimensional (3D) crumpled reduced graphene oxide (RGO)-Co3O4 nanohybrids were synthesized via a novel and facile solution method for use in UV-induced hydrogen evolution reaction (HER). The synthesized RGO-Co3O4 was calcined at a temperature from 300 degrees C to 500 degrees C to examine the effect of calcination on its HER activity. The 500 degrees C-calcined 3D-crumpled RGO-Co3O4 exhibited the highest photocurrent density under UV illumination due to the improved interfacial hole transfer and suppressed electron recombination. In addition, it also showed excellent durability even after 1000 cycles in acidic solution. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：118 / 121
页数：4
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