Electrochemical Properties of Yolk-Shell, Hollow, and Dense WO3 Particles Prepared by using Spray Pyrolysis

Authors

  • Chul Min Sim,

    1. Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701 (Korea), Fax: (+82) 2-4583504
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  • Young Jun Hong,

    1. Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701 (Korea), Fax: (+82) 2-4583504
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  • Prof. Yun Chan Kang

    Corresponding author
    1. Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701 (Korea), Fax: (+82) 2-4583504
    • Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701 (Korea), Fax: (+82) 2-4583504

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Abstract

original image

Treading on eggshells: WO3 powders are prepared by using a one-step spray pyrolysis process. Different spray solutions are used (with or without sucrose), and particles with various morphologies (yolk-shell, hollow, and dense-structured) are achieved. The yolk-shell composite demonstrates electrochemical properties that are superior to the particles with dense and hollow structures at a high current density.

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