Evaporation-Induced Coating of Hydrous Ruthenium Oxide on Mesoporous Silica Nanoparticles to Develop High-Performance Supercapacitors

Authors

  • Hou-Sheng Huang,

    1. Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
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  • Kuo-Hsin Chang,

    1. Department of Chemical Engineering, National Tsing-Hua University, Hsin-Chu 30013, Taiwan
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  • Norihiro Suzuki,

    1. World Premier International (WPI) Research Center, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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  • Yusuke Yamauchi,

    Corresponding author
    1. World Premier International (WPI) Research Center, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
    2. Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
    • World Premier International (WPI) Research Center, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
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  • Chi-Chang Hu,

    Corresponding author
    1. Department of Chemical Engineering, National Tsing-Hua University, Hsin-Chu 30013, Taiwan
    • Department of Chemical Engineering, National Tsing-Hua University, Hsin-Chu 30013, Taiwan
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  • Kevin C.-W. Wu

    Corresponding author
    1. Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
    • Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
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Abstract

original image

An efficient evaporation-induced coating method combining microwave-assisted hydrothermal transformation and annealing is developed to fabricate an ideal electrode material from composites with a layer of hydrous RuO2 on mesoporous silica nanoparticles (MSNs), for a high-performance supercapacitor. Total and RuO2-based specific capacitances are as high as 1125 and 2000 F g−1, respectively.

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