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Title: Pt-Pb alloy nanoparticle/carbon nanotube nanocomposite: A strong electrocatalyst for glucose oxidation
Authors: Cui, H.-F. 
Ye, J.-S. 
Liu, X.
Zhang, W.-D.
Sheu, F.-S. 
Issue Date: 14-May-2006
Citation: Cui, H.-F., Ye, J.-S., Liu, X., Zhang, W.-D., Sheu, F.-S. (2006-05-14). Pt-Pb alloy nanoparticle/carbon nanotube nanocomposite: A strong electrocatalyst for glucose oxidation. Nanotechnology 17 (9) : 2334-2339. ScholarBank@NUS Repository.
Abstract: 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 10-40nm 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. © 2006 IOP Publishing Ltd.
Source Title: Nanotechnology
ISSN: 09574484
DOI: 10.1088/0957-4484/17/9/043
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