TY - JOUR
T1 - Electron-Conductive Metal-Organic Framework, Fe(dhbq)(dhbq = 2,5-Dihydroxy-1,4-benzoquinone)
T2 - Coexistence of Microporosity and Solid-State Redox Activity
AU - Kon, Kazuki
AU - Uchida, Kaiji
AU - Fuku, Kentaro
AU - Yamanaka, Shuntaro
AU - Wu, Bin
AU - Yamazui, Daiki
AU - Iguchi, Hiroaki
AU - Kobayashi, Hiroaki
AU - Gambe, Yoshiyuki
AU - Honma, Itaru
AU - Takaishi, Shinya
N1 - Funding Information:
This work was partially supported by a JSPS KAKENHI Grant (B) 19H02729, Grant (A) 21H04696, and Tohoku university molecule & material synthesis platform in the nanotechnology platform project sponsored by the ministry of education, culture, sports, science, and technology (MEXT), Japan. The X-ray absorption fine structure was investigated at the BL-12C beamline in the Photon Factory of High Energy Accelerator Research Organization (KEK, proposal no. 2021G129). We thank Prof. Brian K. Breedlove for his help in revising the manuscript.
Publisher Copyright:
© 2021 American Chemical Society.
PY - 2021/8/18
Y1 - 2021/8/18
N2 - 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-πinteractions 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.
AB - 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-πinteractions 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.
KW - cathode material
KW - electrical conductivity
KW - lithium-ion battery
KW - metal-organic frameworks
KW - redox-active
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U2 - 10.1021/acsami.1c06571
DO - 10.1021/acsami.1c06571
M3 - Article
C2 - 34353024
AN - SCOPUS:85113821470
VL - 13
SP - 38188
EP - 38193
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 32
ER -
