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In situ Seamless Magnetic Measurements for Solid-State Electrochemical Processes in Prussian Blue Analogues

Authors

  • Dr. Tetsuya Yamada,

    1. Department of Chemistry and Research Centre for Materials Science, Nagoya University, Furo-cho, Chikusa, 464-8602 Nagoya (Japan)
    2. CREST, JST, Furo-cho, Chikusa, 464-8602 Nagoya (Japan)
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  • Kantaro Morita,

    1. Department of Chemistry and Research Centre for Materials Science, Nagoya University, Furo-cho, Chikusa, 464-8602 Nagoya (Japan)
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  • Dr. Heng Wang,

    1. Department of Chemistry and Research Centre for Materials Science, Nagoya University, Furo-cho, Chikusa, 464-8602 Nagoya (Japan)
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  • Keita Kume,

    1. Department of Chemistry and Research Centre for Materials Science, Nagoya University, Furo-cho, Chikusa, 464-8602 Nagoya (Japan)
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  • Dr. Hirofumi Yoshikawa,

    Corresponding author
    1. Department of Chemistry and Research Centre for Materials Science, Nagoya University, Furo-cho, Chikusa, 464-8602 Nagoya (Japan)
    • Department of Chemistry and Research Centre for Materials Science, Nagoya University, Furo-cho, Chikusa, 464-8602 Nagoya (Japan)

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  • Prof. Kunio Awaga

    Corresponding author
    1. Department of Chemistry and Research Centre for Materials Science, Nagoya University, Furo-cho, Chikusa, 464-8602 Nagoya (Japan)
    2. CREST, JST, Furo-cho, Chikusa, 464-8602 Nagoya (Japan)
    • Department of Chemistry and Research Centre for Materials Science, Nagoya University, Furo-cho, Chikusa, 464-8602 Nagoya (Japan)

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  • This work was performed with the approval of PF PAC (Proposal Nos. 2008G586, 2009G528, 2010G557, and 2012G027). We are grateful to the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan for a Grant-in-Aid for Scientific Research. We would like to thank Prof. Michel Verdaguer, from Université Pierre-et-Marie-Curie, for his helpful discussions.

Abstract

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Seamless observation: Magnetic measurements in a solid-state electrochemical environment have been developed and applied to a mixed-valent chromium Prussian blue analogue (PBA) ferrimagnet. Battery cells containing PBA as a cathode active material were inserted into a SQUID and the PBA reduction during battery discharge was controlled. Magnetic changes were revealed that can be understood by the redox-induced spin changes of the Cr ions.

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