Biothiol-mediated synthesis of Pt nanoparticles on graphene nanoplates and their application in methanol electrooxidation

被引：13

作者：

Dai, Shengdong ^{[1
]}

Zhang, Jinli ^{[1
]}

Fu, Yan ^{[1
]}

Li, Wei ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300350, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2018年 / 53卷 / 01期

关键词：

ELECTROCATALYTIC ACTIVITY; GRAPHITE NANOPLATELETS; CATALYST; NANOCLUSTERS; NANOWIRES; OXIDE; SIZE;

D O I：

10.1007/s10853-017-1508-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We synthesized highly dispersive Pt nanoparticles on graphene nanoplates (GNPs) under the orientation of different biothiols templates. Through the characterizations of FT-IR, ITC, HRTEM, EELS, XPS, cyclic voltammetry and chronoamperometry, it is demonstrated that the catalytic performance of GNPs-supported Pt NPs is greatly associated with thiol-containing groups, particle sizes as well as morphologies. There is a synergetic effect between biothiols and GNPs to modulate the dispersity and the distribution of Pt NPs. The biothiol-templated non-spherical Pt NPs on GNPs show higher activity and better stability in methanol oxidation reaction, comparing with those spherical Pt NPs formed in the solution and commercial Pt/C. Particularly for adopting cysteine as the biotemplate, Pt NPs show the highest catalytic activities as well as the enhanced antipoisoning property, with the mean width of 3 nm and the length ranging in 3-13 nm. These results pave a new way to manufacture hybrid nanocatalysts on the basis of facile modulation by biothiols.

引用

页码：423 / 434

页数：12

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