A new strategy to exploit maximum rate performance for aqueous batteries through a judicious selection of MOF-type electrodes

IR (HANDLE) Open Access
  • Nakamoto, Kosuke
    Institute for Materials Chemistry and Engineering, Kyushu University
  • Bai, Junwen
    Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • Zhao, Minyan
    Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • Sakamoto, Ryo
    Institute for Materials Chemistry and Engineering, Kyushu University
  • Zhao, Liwei
    Institute for Materials Chemistry and Engineering, Kyushu University
  • Ito, Masato
    Institute for Materials Chemistry and Engineering, Kyushu University
  • Okada, Shigeto
    Institute for Materials Chemistry and Engineering, Kyushu University
  • Yamamoto, Eiji
    Department of Chemistry, Graduate School of Science, Kyushu University
  • Murayama, Haruno
    Department of Chemistry, Graduate School of Science, Kyushu University
  • Tokunaga, Makoto
    Department of Chemistry, Graduate School of Science, Kyushu University

Description

A metal–organic framework (MOF) having a redox active 1,4,5,8-naphthalenetetracarboxdiimide (NDI) derivative in its organic linker shows excellent rate performance as an electrode material for aqueous batteries thanks to its large pores. Among aqueous electrolytes examined, K+-based ones exhibit the highest rate performance, which is caused by the highest mobility of the smallest hydrated K+ ion not only in the aqueous electrolyte but also in the electrode. Since the use of a counter electrode with insufficiently small pores for the full-cell configuration offsets this merit, our study may lead to a conclusion that the maximum rate performance for aqueous batteries will be accomplished only through further elaboration of both electrode materials with sufficiently large pores, in which hydrated ions can travel equally fast as those in the electrolyte.

Journal

  • RSC Advances

    RSC Advances 13 (32), 22070-22078, 2023

    Royal Society of Chemistry (RSC)

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Details 詳細情報について

  • CRID
    1050018971027089792
  • ISSN
    20462069
  • HANDLE
    2324/7178880
  • Text Lang
    en
  • Article Type
    journal article
  • Data Source
    • IRDB

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