Fabrication and catalytic properties of Co-Ag-Pt nanoparticle-decorated titania nanotube arrays

被引：93
作者：
Yang, Lixia
He, Dongmei
Cai, Qingyun [1 ]
Grimes, Craig A.
机构：
[1] Hunan Univ, Dept Chem, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Peoples R China
[2] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA
[3] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2007年 / 111卷 / 23期
关键词：
D O I：
10.1021/jp067207k
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：
Highly ordered titania nanotube arrays are fabricated by anodic oxidation of titanium in a fluoride-ion-containing electrolyte. In this work Co-Ag-Pt nanoparticles, approximately 20 nm in diameter, are electrochemically deposited inside the nanotubes and the catalytic properties of the resultant architecture examined using Mn2+/Mn3+ as the probe. The effect of Co, Ag, and Pt loading content on the catalytic activity is investigated. In comparison to a Pt electrode, the oxidation potential of the Co-Ag-Pt/titania nanotube array electrode is negatively shifted by 93 mV and the peak current increased by a factor of 9.
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页码：8214 / 8217
页数：4
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