Ultrathin graphitic C3N4 nanosheet as a promising visible-light-activated support for boosting photoelectrocatalytic methanol oxidation

被引：256
作者：
Zhu, Mingshan [1 ,3 ]
Zhai, Chunyang [1 ]
Sun, Mingjuan [1 ]
Hu, Yufang [1 ]
Yan, Bo [2 ]
Du, Yukou [1 ,2 ]
机构：
[1] Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Peoples R China
[2] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China
[3] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2017年 / 203卷
关键词：
Carbon nitride; Photo-responsive electrode; Visible light; Photoelectrocatalysis; Methanol oxidation; REDUCED GRAPHENE OXIDE; PHOTOCATALYTIC HYDROGEN EVOLUTION; CARBON NITRIDE; ELECTROCATALYTIC OXIDATION; FORMIC-ACID; ELECTROOXIDATION; PERFORMANCE; CATALYST; FABRICATION; COMPOSITE;
D O I：
10.1016/j.apcatb.2016.10.012
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：
In this paper, ultrathin two dimensional (2D) g-C3N4 nanosheet worked as support for the deposition of ultrasmall Pt nanoclusters. The average size of Pt nanocluster is about 3.2 nm. Firstly, the as-prepared Pt/g-C3N4 modified electrode exhibited enhanced electrocatalytic ability in methanol oxidation reaction (MOR) compared to bare Pt nanoparticles. Moreover, when this electrode was upon visible light irradiation, higher performance of MOR was clearly observed compared to the traditional ambient electrocatalytic oxidation. This is owing to the synergistic effects of photocatalytic and electrocatalytic MOR together with the efficient interfacial charger transfer in Pt/g-C3N4. These results show that 2D ultrathin g-C3N4 nanosheets can be used as promising photoactived support in the fields of solar and chemical energy conversion and also provide more insights into developing novel visible light photo-responsive electrode in direct methanol fuel cell. (C) 2016 Elsevier B.V. All rights reserved.
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收藏
页码：108 / 115
页数：8
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