One-Pot Synthesis of Pt/Carbon Nanotubes by Self-Regulated Reduction for Electrocatalysis

被引：3

作者：

Lee, Chien-Liang ^{[1
]}

Wu, Shi-Chi ^{[1
]}

机构：

[1] Natl Kaohsiung Univ Appl Sci, Dept Chem & Mat Engn, Kaohsiung 807, Taiwan

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2010年 / 10卷 / 07期

关键词：

Pt Nanoparticles; Catalyst; Fuel Cell; Methanol Electrooxidation; MULTIWALLED CARBON NANOTUBES; PLATINUM NANOPARTICLES; SUPPORTED PLATINUM; METAL NANOPARTICLES; METHANOL OXIDATION; OXYGEN REDUCTION; HIGH DISPERSION; FUEL-CELLS; CATALYSTS; ACID;

D O I：

10.1166/jnn.2010.1680

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper describes a method for size-controlled synthesis of Pt nanoparticles and their attachment to the sidewalls of multiwall carbon nanotubes (CNTs) by self-regulated reduction of sodium n-dodecyl sulfate (SDS), without surface pretreatment. The size of the Pt nanoparticles is controlled by adjusting the concentration of SDS. When Pt/CNTs are heated to 500 degrees C in N(2) atmosphere, Pt nanochains are formed on the CNTs; some of these nanochains contain small islands. Electrochemical measurements confirm that the electroactivities of the Pt/CNT nanocatalysts increase with a decrease in the size of the Pt nanoparticles. Additionally, comparing with the heated Pt/CNT nanocatalysts containing smooth Pt nanochains, the heated Pt/CNT nanocatalysts containing Pt nanochains with small Pt islands show higher electrocatalysis activities and stability.

引用

页码：4650 / 4656

页数：7

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