Fabrication of 3D Pt catalysts via support of Na2Ti3O7 nanowires for methanol and ethanol electrooxidation

被引:20
作者
He, Xiaoshan [1 ]
Hu, Chenguo [1 ]
Liu, Hong [2 ]
机构
[1] Chongqing Univ, Dept Appl Phys, Chongqing 400044, Peoples R China
[2] Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
关键词
Na2Ti3O7; nanowire; Pt nanoparticle; Methanol oxidation; Ethanol oxidation; CARBON NANOTUBES; ELECTROCATALYSTS; NANOPARTICLES; MICROSPHERES; PLATINUM; NI;
D O I
10.1016/j.catcom.2010.08.020
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
A novel support of Na2Ti3O7 nanowires for Pt catalysts has been prepared and used for methanol and ethanol electrooxidation The Na2Ti3O7 nanowires with typical length up to several tens of micrometers and the average diameter of about 200 nm are used as the 3D support for loading Pt nanoparticles FESEM and TEM show that the Pt nanoparticles of about 8 to 10 nm in diameter are evenly distributed on the surface of Na2Ti3O7 nanowires The electrochemical studies reveal that the catalytic activity of Pt/Na2Ti3O7 electrocatalyst is almost threefold higher than that of Pt/C electrocatalyst at the same loading of Pt (C) 2010 Elsevier B V All rights reserved
引用
收藏
页码:100 / 104
页数:5
相关论文
共 26 条
[21]   Increasing the three-phase boundary by a novel three-dimensional electrode [J].
Xie, FY ;
Tian, ZQ ;
Meng, H ;
Shen, PK .
JOURNAL OF POWER SOURCES, 2005, 141 (02) :211-215
[22]   Pt-M (M = Fe, Co, Ni and Cu) electrocatalysts synthesized by an aqueous route for proton exchange membrane fuel cells [J].
Xiong, L ;
Kannan, AM ;
Manthiram, A .
ELECTROCHEMISTRY COMMUNICATIONS, 2002, 4 (11) :898-903
[23]   Methanol and ethanol electrooxidation on Pt and Pd supported on carbon microspheres in alkaline media [J].
Xu, Changwei ;
Cheng, Liqiang ;
Shen, Peikang ;
Liu, Yingliang .
ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (05) :997-1001
[24]   Novel Pt/CeO2/C catalysts for electrooxidation of alcohols in alkaline media [J].
Xu, CW ;
Shen, PK .
CHEMICAL COMMUNICATIONS, 2004, (19) :2238-2239
[25]   Electrode position of Pt nanoparticles on carbon nanotubes-modified polyimide materials for electrocatalytic applications [J].
Zhang, Xin ;
Shi, Xuezhao ;
Wang, Chunming .
CATALYSIS COMMUNICATIONS, 2009, 10 (05) :610-613
[26]   Direct electrodeposition of Pt nanotube arrays and their enhanced electrocatalytic activities [J].
Zhang, Xinyi ;
Dong, Dehua ;
Li, Dan ;
Williams, Tim ;
Wang, Huanting ;
Webley, Paul A. .
ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (01) :190-193