An efficient photo-assisted BiOBr nanoplates support for electrocatalyst for methanol oxidation

被引：28
作者：
Hu, Sujuan [1 ]
Jiang, Lei [1 ]
Tu, Yujiao [1 ]
Cui, Yan [1 ,2 ]
Wang, Baoling [1 ,2 ]
Ma, Yinhai [1 ]
Zhang, Yu [1 ]
机构：
[1] Kunming Univ, Dept Chem, Kunming 650214, Yunnan, Peoples R China
[2] Kunming Univ, Yunnan Engn Technol Res Ctr Plast Films, Kunming 650214, Yunnan, Peoples R China
来源：
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS | 2018年 / 86卷
关键词：
Photo-assisted; Methanol oxidation; Photoelectrochemistry; BiOBr nanoplates; FORMIC-ACID; PHOTOELECTROCATALYTIC ACTIVITY; NANOSHEETS; ELECTROOXIDATION; HETEROJUNCTION; PHOTOCATALYSTS; PERFORMANCE; CATALYSTS; BR; CL;
D O I：
10.1016/j.jtice.2018.02.024
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Herein, visible-light driven BiOBr nanoplates with fully exposed (001) facet are for the first time adopted as Pt nanoparticles support for electrocatalytic methanol oxidation. We found that, as Pt nanoparticles support, high specific surface area of BiOBr (001) nanoplates not only can be driven by visible-light to produce photogenerated electrons and holes, but also benefit to the dispersion of Pt nanoparticles. When Pt-BiOBr (001) nanocomposites electrode exposed into the simulated solar light irradiation and visible light irradiation, it exhibits 5.2 and 2.4 times higher electrocatalytic activities for methanol oxidation than dark condition, respectively. Synergistic effects between electrocatalytic and photocatalytic methanol oxidation as well as the efficient interfacial charger separation in Pt-BiOBr (001) electrode contribute to the enhanced electrocatalytic methanol oxidation activities. The present results suggest that BiOBr (001) nanoplates can be used as photo-assisted Pt nanoparticles support in direct methanol fuel cell. (C) 2018 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：113 / 119
页数：7
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