Excellent Durability of Substoichiometric Titanium Oxide As a Catalyst Support for Pd in Alkaline Direct Ethanol Fuel Cells

被引：34
|
作者：
Son Truong Nguyen [1 ]
Lee, Jong-Min [1 ]
Yang, Yanhui [1 ]
Wang, Xin [1 ]
机构：
[1] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2012年 / 51卷 / 30期
基金：
新加坡国家研究基金会;
关键词：
ELECTRONIC INTERACTIVE NATURE; OXYGEN-REDUCTION; CARBON NANOTUBE; CERAMIC ELECTRODES; MAGNELI PHASES; ELECTROCATALYSTS; ELECTROOXIDATION; HYDROGEN; METHANOL; STABILITY;
D O I：
10.1021/ie202696z
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this study, substoichiometric titanium oxide, TinO2n-1, was compared with carbon black and TiO2 in the role of catalyst supports for Pd in alkaline direct ethanol fuel cell. 10%Pd/C, 10% Pd/commercial TiO2 and 10%Pd/TinO2n-1, catalysts were successfully prepared by a polyol method. The supports and electrocatalysts were characterized by X-ray diffraction (XRD), nitrogen adsorption, electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), linear sweep voltammetry (LSV), and chronoamperometry (CA) techniques. Excellent durability was found for TinO2n-1 with holding potential and multiscan tests in N-2-purged 1 M KOH solution. Among the three catalysts, Pd/TinO2n-1, showed the best activity and stability for ethanol electrooxidation in alkaline media.
引用
收藏
页码：9966 / 9972
页数：7
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