Ultrathin platinum film covered high-surface-area nanoporous gold for methanol electro-oxidation

被引：34

作者：

Du, Ying ^{[1
]}

Xu, Jing-Juan ^{[1
]}

Chen, Hong-Yuan ^{[1
]}

机构：

[1] Nanjing Univ, Key Lab Analyt Chem Life Sci, Minist Educ China, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 08期

关键词：

Pt-Au electrocatalyst; Nanoporous gold scaffold; Methanol electro-oxidation; FUEL-CELLS; ELECTROCATALYTIC ACTIVITY; OXIDATION; NANOPARTICLES; CATALYSTS;

D O I：

10.1016/j.elecom.2009.07.004

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An ultrathin platinum film is fabricated on a nanoporous gold (NPG) scaffold through a catalytic chemical deposition method. The morphology and active surface area of the deposited Pt film, which will greatly influence the electro-catalytic properties of the catalyst, can be controlled by adjusting the deposition condition. Compared with bare NPG and high Pt loaded NPG, the performances of methanol electro-oxidation on the low-Pt-content bimetallic film are greatly improved, both in its catalytic current enhancement and signal stability. The best condition for methanol oxidation can be achieved when the area ratio of deposited Pt and uncovered Au was 3:1. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1717 / 1720

页数：4

共 15 条

[1] Formation of carbon-supported PtM alloys for low temperature fuel cells: a review [J].