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Corresponding Author

Qi-ling ZHONG(zhqiling@163.com)

Abstract

The selenium (Se) templates and hollow platinum (Pthollow) nanospheres with different sizes were controllably synthesized by adjusting the concentration of sodium dodecyl sulphonate (SDSN) (CSDSN, μmol·L-1) which was used as a surfactant. Accordingly, the Pthollow nanospheres modified glassy carbon (GC) electrode (Pthollow/GC) was prepared. The morphology and composition of Pthollow nanospheres were characterized by scanning electron microscopy (SEM), transmission electron microscope (TEM), energy dispersive X-ray spectroscopy (EDX), high resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED) and X-ray diffraction (XRD) techniques. The electrocatalytic activities of Pthollow/GC and electrodeposited Pt nanoparticles modified glassy carbon electrode (Ptnano/GC) toward methanol oxidation were studied. The results showed that the uniform diameter sizes with well distributions were obtained with the synthesized porous Pthollow nanospheres constructed by Pt atom clusters were . The best electrocatalytic activity toward methanol oxidation was achieved with the Pthollow/GC having a diameter of 130 nm synthesized with CSDSN = 4 μmol·L-1

Graphical Abstract

Keywords

Se template, Pt hollow nanosphere, cyclic voltammetry, current time curves

Publication Date

2014-12-28

Online Available Date

2014-04-15

Revised Date

2014-04-10

Received Date

2014-03-18

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