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.
引用
收藏
页码：8214 / 8217
页数：4
相关论文
共 38 条
[11]   The effect of boron on the catalyst reducibility and activity of Co/TiO2 Fischer-Tropsch catalysts [J].
Li, JL ;
Coville, NJ .
APPLIED CATALYSIS A-GENERAL, 1999, 181 (01) :201-208
[12]   Coadsorption of horseradish peroxidase with thionine on TiO2:: Nanotubes for biosensing [J].
Liu, SQ ;
Chen, AC .
LANGMUIR, 2005, 21 (18) :8409-8413
[13]  
MATARE HF, 1971, DEFECT ELECT SEMICON
[14]   Electrochemically induced sol-gel preparation of single-crystalline TiO2 nanowires [J].
Miao, Z ;
Xu, DS ;
Ouyang, JH ;
Guo, GL ;
Zhao, XS ;
Tang, YQ .
NANO LETTERS, 2002, 2 (07) :717-720
[15]   Use of highly-ordered TiO2 nanotube arrays in dye-sensitized solar cells [J].
Mor, GK ;
Shankar, K ;
Paulose, M ;
Varghese, OK ;
Grimes, CA .
NANO LETTERS, 2006, 6 (02) :215-218
[16]   Photoelectrochemical properties of titania nanotubes [J].
Mor, GK ;
Shankar, K ;
Varghese, OK ;
Grimes, CA .
JOURNAL OF MATERIALS RESEARCH, 2004, 19 (10) :2989-2996
[17]   A self-cleaning, room-temperature titania-nanotube hydrogen gas sensor [J].
Mor, GK ;
Varghese, OK ;
Paulose, M ;
Grimes, CA .
SENSOR LETTERS, 2003, 1 (01) :42-46
[18]   Fabrication of tapered, conical-shaped titania nanotubes [J].
Mor, GK ;
Varghese, OK ;
Paulose, M ;
Mukherjee, N ;
Grimes, CA .
JOURNAL OF MATERIALS RESEARCH, 2003, 18 (11) :2588-2593
[19]   Unprecedented ultra-high hydrogen gas sensitivity in undoped titania nanotubes [J].
Paulose, M ;
Varghese, OK ;
Mor, GK ;
Grimes, CA ;
Ong, KG .
NANOTECHNOLOGY, 2006, 17 (02) :398-402
[20]   Anodic growth of highly ordered TiO2 nanotube arrays to 134 μm in length [J].
Paulose, Maggie ;
Shankar, Karthik ;
Yoriya, Sorachon ;
Prakasam, Haripriya E. ;
Varghese, Oomman K. ;
Mor, Gopal K. ;
Latempa, Thomas A. ;
Fitzgerald, Adriana ;
Grimes, Craig A. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (33) :16179-16184
1234