Preparation of Surfactant-Free Pt and PtRu Nanoparticles with High Activity for Methanol Oxidation

被引：6

作者：

Yao, Yao ^{[1
]}

Cai, Jun ^{[1
]}

Zheng, Yong-li ^{[1
]}

Chen, Yan-xia ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China

来源：

CHINESE JOURNAL OF CHEMICAL PHYSICS | 2014年 / 27卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Pt nano-electrocatalyst; PtRu nano-electrocatalyst; Green synthesis; Methanol oxidation reaction; Carbon monoxide; CARBON NANOTUBES; FUEL-CELLS; PLATINUM; ELECTROOXIDATION; POLYCRYSTALLINE; CATALYSTS; MONOXIDE; ACID;

D O I：

10.1063/1674-0068/27/03/332-336

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A simple and green approach to synthesize highly active electro-catalysts for methanol oxidation reaction (MOR) without using any organic agents is described. Pt nanoparticles are directly deposited on the pre-cleaned and pre-oxidized multiwall carbon nanotubes (MWC-NTs) from Pt salt by using CO as the reductant. MOR activity has been characterized by both cyclic voltammetry and chronoamperometry, the current density and mass specific current at the peak potential (ca. 0.9 V vs. RHE) reaches 11,6 mA/cm(2) and 860 mA/mg(Pt), respectively. After electro-deposition of Ru onto the Pt/MWCNTs surface, the catalysts show steady state mass specific current of 20 and 80 mA/mg(Pt) at 0.5 and 0.6 V, respectively.

引用

页码：332 / 336

页数：5

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