Study on the co-catalytic effect of titanate nanotubes on Pt-based catalysts in direct alcohol fuel cells

被引：19
作者：
Xiao, Pu [1 ,2 ]
Song, Huanqiao [1 ]
Qiu, Xinping [1 ,2 ]
Zhu, Wentao [1 ]
Chen, Liquan [1 ,2 ]
Stimming, Ulrich [3 ]
Bele, Petra [3 ]
机构：
[1] Tsinghua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Grad Sch Shenzhen, Lab Adv Power Sources, Shenzhen 518055, Peoples R China
[3] Tech Univ Munich, Dept Phys E19, D-85748 Garching, Germany
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2010年 / 97卷 / 1-2期
基金：
北京市自然科学基金; 中国国家自然科学基金;
关键词：
TiO2; Titanate nanotube; Direct ethanol fuel cell; Anode catalyst; Co-catalytic effect; METHANOL OXIDATION; OXYGEN REDUCTION; TIO2; NANOTUBES; ETHANOL ELECTROOXIDATION; ELECTROCATALYSTS; PERFORMANCE; OXIDE; NANOPARTICLES; ELECTRODE; PHOTOCATALYST;
D O I：
10.1016/j.apcatb.2010.04.001
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：
In this paper, titanate nanotubes were synthesized and their co-catalytic effects in direct alcohol fuel cells (DAFC) were studied by physically mixing them with commercial Pt/C catalyst BET results showed the surface area increased significantly when a big amount of nanotubes were formed. Infrared (IR) spectra and thermal gravity analysis (TGA) showed that less water existed in nanoparticles and nanotubes when the raw materials were calculated at higher temperature Electrochemical measurements showed that titanate nanotubes which contained more structural water had a better catalytic performance Proton conductivity of titanate nanotubes was also considered to be an important factor for enhancing oxidation reactivity and was studied by impedance tests (C) 2010 Elsevier B.V. All rights reserved
引用
收藏
页码：204 / 212
页数：9
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