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Pt-Pb alloy nanoparticle/carbon nanotube nanocomposite: a strong electrocatalyst for glucose oxidation

被引：184
作者：
Cui, Hui-Fang
Ye, Jian-Shan
Liu, Xiao
Zhang, Wei-De
Sheu, Fwu-Shan
机构：
[1] Natl Univ Singapore, Dept Biol Sci, Singapore 117543, Singapore
[2] S China Univ Technol, Coll Chem, Guangzhou 510640, Peoples R China
[3] Natl Univ Singapore, Univ Scholars Programme, Singapore 119260, Singapore
来源：
NANOTECHNOLOGY | 2006年 / 17卷 / 09期
关键词：
D O I：
10.1088/0957-4484/17/9/043
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A Pt-Pb alloy nanoparticle/multi-walled carbon nanotube (Pt-Pb/MWCNT) nanocomposite was prepared by electrodepositing Pt-Pb alloy onto MWCNTs that were vertically aligned on Ta plates. The 10-40 nm diameter Pt-Pb alloy nanoparticles were mainly deposited at the tips, and sparsely dispersed on the sidewalls of the bamboo-like MWCNTs, as demonstrated by scanning electron microscopy, transmission electron microscopy (TEM), and x-ray diffraction. The high resolution TEM (HRTEM) image showed a snowflake-like morphology for the Pt-Pb nanoparticles. This Pt-Pb/MWCNT nanocomposite exhibited much stronger electrocatalytic activity toward glucose oxidation than pristine MWCNTs, Pt-Pb on glassy carbon, and Pt/MWCNT and Au/MWCNT nanocomposites, in both neutral and alkaline solutions. This Pt-Pb/MWCNT nanocomposite electrode is hence promising for development as a nonenzymatic glucose sensor.
引用
收藏
页码：2334 / 2339
页数：6
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