Physical and electrochemical evaluation of commercial carbon black as electrocatalysts supports for DMFC applications

被引：102
|
作者：
Carmo, Marcelo
Dos Santos, Antonio R.
Poco, Joao G. R.
Linardi, Marcelo
机构：
[1] IPEN CNEN, BR-05508000 Sao Paulo, Brazil
[2] Inst Pesquisas Tecnol Estado Sao Paulo SA, BR-05508901 Sao Paulo, Brazil
来源：
JOURNAL OF POWER SOURCES | 2007年 / 173卷 / 02期
基金：
巴西圣保罗研究基金会;
关键词：
fuel cell; vulcan XC72; PtRu; black pearl; methanol; cyclic voltammogramm;
D O I：
10.1016/j.jpowsour.2007.08.032
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：
This work presents results with noble metal catalysts, Pt and PtRu supported on Black Pearl with a higher surface area in comparison with carbon black Vulcan XC-72R and Vulcan XC72. The nanoparticles were synthesized following the alcohol reduction method. Brunauer-Emmet-Teller (BET) surface area analysis, X-ray diffraction (XRD), energy dispersive analysis by X-rays (EDAX), and high resolution transmission electronic microscopy (TEM) experiments were carried out to characterize the materials obtained. Cyclic voltammograms (CV) of catalysts using the porous thin layer electrode technique were obtained for the catalysts surface evaluation and for methanol oxidation to check the electrocatalytic behavior of these nanocatalyst systems. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：860 / 866
页数：7
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