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

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 10–40 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.

Keywords

Materials scienceNanocompositeCarbon nanotubeHigh-resolution transmission electron microscopyAlloyNanoparticleTransmission electron microscopyChemical engineeringElectrocatalystScanning electron microscopeNanotubeNanotechnologyElectrodeElectrochemistryComposite materialChemistry

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Publication Info

Year: 2006
Type: article
Volume: 17
Issue: 9
Pages: 2334-2339
Citations: 193
Access: Closed

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APA Style

                            
                                
                                    Hui‐Fang Cui, 
                                
                                    Jianshan Ye, 
                                
                                    Xiao Liu
                                
                                et al.
                            
                            (2006). 
                            Pt–Pb alloy nanoparticle/carbon nanotube nanocomposite: a strong electrocatalyst for glucose oxidation. 
                            Nanotechnology
                            , 17
                            (9)
                            , 2334-2339.
                            https://doi.org/10.1088/0957-4484/17/9/043
                        

Identifiers

DOI: 10.1088/0957-4484/17/9/043