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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

References

[1] Sun Y, Xia Y. Increased sensitivity of surface plasmon resonance of gold nanoshells compared to that of gold solid colloids in response to environmental changes[J]. Analytical Chemistry, 2002, 74(20): 5297-5305.
[2] Rao G S(饶贵仕), Cheng M Q(程美琴), Zhong Y(钟艳), et al. Preparation of high catalytic platinum hollow nanospheres and their electrocatalytic performance for methanol oxidation[J]. Acta Physico-Chimica Sinica(物理化学学报), 2011, 27(10): 2373-2378.
[3] Mayers B, Jiang X C, Sunderland D, et al. Hollow nanostructures of platinum with controllable dimensions can be synthesized by templating against selenium nanowires and colloids[J]. Journal of the American Chemical Society, 2003, 125(44): 13364-13365.
[4] Mees D R, Pysto W, Tarcha P J. Formation of selenium colloids using sodium ascorbate as the reducing agent[J]. Journal of Colloid and Interface Science, 1995, 170: 254-260.
[5] Guo S J, Dong S J, Wang E K. Spheres with nanochannels: An advanced nanoelectrocatalyst for the oxygen reduction reaction[J]. Journal of Physical Chemistry C, 2009, 113(14): 5485-5492.
[6] Cao G Z, Liu D W. Template-based synthesis of nanorod, nanowire, and nanotube arrays[J]. Advances in Colloid and Interface Science, 2008, 136(1/2): 45-64.
[7] Liang H P, Zhang H M, Hu J S, et al. Pt hollow nanospheres: Facile synthesis and enhanced electrocatalysts[J]. Angewandte Chemie-International Edition, 2004, 43(12): 1540-1543.
[8] Wang X C, Tang S D, Liu J, et al. Uniform Fe3O4-PANi/PS composite spheres with conductive and magnetic properties and their hollow spheres[J]. Journal of Nanoparticle Research, 2009, 11(4): 923-929.
[9] Graf C, Blaaderen A. Metallodielectric colloidal core-shell particles for photonic applications[J]. Langmuir, 2002, 18(2): 524-534.
[10] Sun Y G, Xia Y N. Alloying and dealloying processes involved in the preparation of metal nanoshells through a galvanic replacement reaction[J]. Nano Letters, 2003, 3(11): 1569-1572.
[11] Liu L P, Peng Q, Li Y D. Preparation of monodisperse Se colloid spheres and Se nanowires using Na2SeSO3 as precursor[J]. Nano Research, 2008, 1(5): 403-411.

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