Synthesis of High-Surface-Area Platinum Nanotubes Using a Viral Template

被引：101

作者：

Gorzny, Marcin L. ^{[1
]}

Walton, Alex S. ^{[1
]}

Evans, Stephen D. ^{[1
]}

机构：

[1] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England

来源：

ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 08期

关键词：

TOBACCO-MOSAIC-VIRUS; ELECTROCATALYSTS; NANOWIRES; METHANOL; RESOLUTION; CATALYSTS; DISK;

D O I：

10.1002/adfm.200902196

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel method for the synthesis of high-active-surface-area, platinum tobacco mosaic virus (Pt-TMV) nanotubes is presented. A platinum salt is reduced to its metallic form on the external surface of a rod-shaped TMV by methanol, which serves as a solvent and reductant simultaneously. it was found that for the same Pt loading the Pt-TMV nanotubes had an electrochemically active surface area between 4 to 8 times larger than similarly sized Pt nanoparticles. A Pt-TMV catalyst displays greater stability in acidic conditions than those based on nanoparticles. When used as a catalyst for methanol oxidation, these Pt nanotubes display a 65% increase in catalytic mass activity compared to that based on Pt nanoparticles.

引用

页码：1295 / 1300

页数：6

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