Synthesis of Prussian Blue Nanoparticles with a Hollow Interior by Controlled Chemical Etching

Authors

  • Dr. Ming Hu,

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

    1. Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo, Kyoto 606-8501 (Japan)
    2. ERATO Kitagawa Integrated Pores Project (Japan) Science and Technology Agency (JST), Kyoto Research Park, Bldg #3, Shimogyo, Kyoto 600-8815 (Japan)
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  • Ryo Ohtani,

    1. Graduate School of Engineering, Kyoto University, Katsura, Nishikyo, Kyoto 615-8510 (Japan)
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  • Dr. Hiroaki Sukegawa,

    1. Spintronics Group, Magnetic Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
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  • Dr. Yoshihiro Nemoto,

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

    1. Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo, Kyoto 606-8501 (Japan)
    2. ERATO Kitagawa Integrated Pores Project (Japan) Science and Technology Agency (JST), Kyoto Research Park, Bldg #3, Shimogyo, Kyoto 600-8815 (Japan)
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  • Prof. Dr. Susumu Kitagawa,

    1. Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo, Kyoto 606-8501 (Japan)
    2. ERATO Kitagawa Integrated Pores Project (Japan) Science and Technology Agency (JST), Kyoto Research Park, Bldg #3, Shimogyo, Kyoto 600-8815 (Japan)
    3. Graduate School of Engineering, Kyoto University, Katsura, Nishikyo, Kyoto 615-8510 (Japan)
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  • Prof. Dr. Yusuke Yamauchi

    Corresponding author
    1. World Premier International (WPI) Research 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 Ohkubo, Shinjuku, Tokyo 169-8555 (Japan)
    3. Precursory Research for Embryonic Science and Technology (PRESTO) (Japan) Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 (Japan)
    • World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)
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Abstract

original image

A facile route has been found to prepare Prussian blue (PB) hollow particles with a cubic shape (see picture). With PB mesocrystals used as a starting material, hollow interiors were created through controlled chemical etching in the presence of poly(vinylpyrrolidone). The hollow cavities and particle sizes could be tuned by changing the synthetic conditions, and the original PB crystallinity was preserved even after formation of interior hollows.

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