A linear molecule functionalized multi-walled carbon nanotubes with well dispersed PtRu nanoparticles for ethanol electro-oxidation

被引：41

作者：

Yang, Xiulin ^{[1
,2
]}

Zheng, Junpeng ^{[1
,2
]}

Zhen, Mingming ^{[1
,2
]}

Meng, Xiangyue ^{[1
,2
]}

Jiang, Feng ^{[1
,2
]}

Wang, Taishan ^{[1
]}

Shu, Chunying ^{[1
]}

Jiang, Li ^{[1
]}

Wang, Chunru ^{[1
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China

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

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2012年 / 121卷

基金：

中国国家自然科学基金;

关键词：

Multi-walled carbon nanotubes; Polyoxyethylene bis(amine); Self-assembly; Electrocatalyst; Direct alcohol fuel cells; METHANOL FUEL-CELL; SUPPORTED PTRU; ELECTROCATALYTIC PERFORMANCE; CATALYTIC PERFORMANCE; GOLD NANOPARTICLES; RU NANOPARTICLES; OXIDATION; POLYMER; ANODE; NANOCOMPOSITES;

D O I：

10.1016/j.apcatb.2012.03.027

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The performance-enhanced PtRu electrocatalysts derived from polyoxyethylene bis(amine) functionalized multi-walled carbon nanotubes (POB-MWCNTs) were fabricated by electrostatic self-assembly technology, in which Pt and Ru precursors were first uniformly distributed on the POB-functionalized MWCNT surface via the electrostatic interaction and then reduced in situ to PtRu nanoparticles in ethylene glycol-water solution. In this process, POB as the wrapping molecule not only preserves the integrity and well dispersion of MWCNTs, but also facilitates the even distribution of PtRu nanoparticles on the surface of MWCNTs. The structure and catalytic properties of the PtRu catalysts were characterized by various spectroscopic techniques such as FT-IR. Raman, TGA, XPS, TEM and XRD spectrometry, and the electrocatalytic properties for ethanol oxidation were investigated by cyclic voltammetry and chronoamperometry. It was revealed that the as-prepared PtRu catalysts possess a high electrocatalytic activity and stability for the electro-oxidation of ethanol, and it provides a facile and eco-friend approach to large-scale production of high performance fuel cell eletrocatalysts. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：57 / 64

页数：8

共 59 条

[1] Formation of carbon supported PtRu alloys: an XRD analysis [J].