In situ PEI and formic acid directed formation of Pt NPs/MWNTs hybrid material with excellent electrocatalytic activity

被引：15

作者：

Li, Jing ^{[1
,2
]}

Yang, Wen ^{[1
,2
]}

Zhu, Hui ^{[1
,2
]}

Wang, Xiaolei ^{[1
,2
]}

Yang, Fan ^{[1
]}

Zhang, Bailin ^{[1
]}

Yang, Xiurong ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

TALANTA | 2009年 / 79卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Pt/MWNTs hybrid material; PEI; Formic acid; Electrocatalysis; Oxygen reduction; Dopamine redox; METHANOL FUEL-CELLS; CARBON NANOTUBES; PLATINUM NANOPARTICLES; CATALYSTS; DOPAMINE; METAL; NANOCOMPOSITE; DECORATION; DEPOSITION; REDUCTION;

D O I：

10.1016/j.talanta.2009.05.029

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A hybrid material based on Pt nanoparticles (Pt NPs) and multi-walled carbon nanotubes (MWNTs) was fabricated with the assistance of PEI and formic acid. The cationic polyelectrolyte PEI not only favored the homogenous dispersion of carbon nanotubes (CNTs) in water, but also provided sites for the adsorption of anionic ions PtCl42- on the MWNTs' sidewalls. Deposition of Pt NPs on the MWNTs' sidewalls was realized by in situ chemical reduction of anionic ions PtCl42- with formic acid. The hybrid material was characterized with TEM, XRD and XPS. Its excellent electrocatalytic activity towards both oxygen reduction in acid media and dopamine redox was also discussed. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：935 / 939

页数：5

共 25 条

[1] A nonoxidative sensor based on a self-doped polyaniline/carbon nanotube composite for sensitive and selective detection of the neurotransmitter dopamine [J].