2. Academic Validation
  3. Electron-Conductive Metal-Organic Framework, Fe(dhbq)(dhbq = 2,5-Dihydroxy-1,4-benzoquinone): Coexistence of Microporosity and Solid-State Redox Activity

Electron-Conductive Metal-Organic Framework, Fe(dhbq)(dhbq = 2,5-Dihydroxy-1,4-benzoquinone): Coexistence of Microporosity and Solid-State Redox Activity

  • ACS Appl Mater Interfaces. 2021 Aug 18;13(32):38188-38193. doi: 10.1021/acsami.1c06571.
Kazuki Kon 1,  Kaiji Uchida 1,  Kentaro Fuku 1,  Shuntaro Yamanaka 1,  Bin Wu 1,  Daiki Yamazui 1,  Hiroaki Iguchi 1,  Hiroaki Kobayashi 2,  Yoshiyuki Gambe 2,  Itaru Honma 2,  Shinya Takaishi 1
Affiliations

Affiliations

  • 1 Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
  • 2 Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Miyagi 980-8577, Japan.
PMID: 34353024 DOI: 10.1021/acsami.1c06571
Abstract

Redox-active metal-organic frameworks (MOFs) have great potential for use as cathode Materials in lithium-ion batteries (LIBs) with large capacities because the organic ligands can undergo multiple-electron redox processes. However, most MOFs are electrical insulators, limiting their application as electrode Materials. Here, we report an electron-conductive MOF with a 2,5-dihydroxy-1,4-benzoquinone (dhbq) ligand, Fe(dhbq). This compound had an electrical conductivity of 5 × 10-6 S cm-1 at room temperature due to d-π interactions between the Fe ion and the ligand and the permanent microporosity. Fe(dhbq) had an initial discharge capacity of 264 mA h g-1, corresponding to the two-electron redox process of dhbq.

Keywords

cathode material; electrical conductivity; lithium-ion battery; metal−organic frameworks; redox-active.

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