Ultradispersed platinum nanoclusters on polydopamine-functionalized carbon nanotubes as an excellent catalyst for methanol oxidation reaction

被引：41

作者：

Huang, Haoliang ^{[1
]}

He, Zuyu ^{[1
]}

Lin, Xiaomin ^{[1
]}

Ruan, Weishuo ^{[1
]}

Liu, Yingju ^{[1
,2
]}

Yang, Zhuohong ^{[1
]}

机构：

[1] South China Agr Univ, Inst Biomat, Dept Appl Chem, Coll Sci, Guangzhou 510642, Guangdong, Peoples R China

[2] Hunan Univ, State Key Lab Chem Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2015年 / 490卷

基金：

美国国家科学基金会;

关键词：

Platinum nanoclusters; Carbon nanotube; Polydopamine; Methanol oxidation reaction; NITROGEN-DOPED GRAPHENE; OXYGEN-REDUCTION; SURFACE; OXIDE; SIZE; NANOPARTICLES; NANOCRYSTALS; ATOM; CHALLENGES; ELECTRODES;

D O I：

10.1016/j.apcata.2014.11.014

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：

The poor electrocatalytic activity towards methanol oxidation reaction (MOR) and the extremely rare reserves of platinum are considered as two of the most severe obstacles which hinder the commercialization of direct methanol fuel cells. In this work, Pt nanoclusters (similar to 1.81 nm), which are much smaller than Pt nanoparticles (similar to 3 nm) in commercial Pt/C, have been uniformly dispersed on polydopaminefunctionalized carbon nanotubes via a simple polyol method. These ultradispersed Pt nanoclusters feature large accessible active surface as well as high fraction of surface atoms with low coordination numbers, and therefore not only exhibit excellent mass activity and stability but also show improved specify activity and CO tolerance relative to Pt/C and Pt/CNT catalyst. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：65 / 70

页数：6

共 37 条

[1] Sp2 C-Dominant N-Doped Carbon Sub-micrometer Spheres with a Tunable Size: A Versatile Platform for Highly Efficient Oxygen-Reduction Catalysts [J].