Dual‐ion intercalation and high volumetric capacitance in a two‐dimensional non‐porous coordination polymer
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1867191.pdf
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Accepted version
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2.46 MB
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Author(s)
Banda, Harish
Dou, Jin-Hu
Chen, Tianyang
Zhang, Yugang
Dincă, Mircea
Date Issued
2021
Journal
Angewandte Chemie - International Edition
Publisher
Wiley
Citation
Banda, Harish, Dou, Jin-Hu, Chen, Tianyang, Zhang, Yugang and Dincă, Mircea. 2021. "Dual‐ion intercalation and high volumetric capacitance in a two‐dimensional non‐porous coordination polymer." Angewandte Chemie - International Edition, 60 (52).
Version
Author's final manuscript
Abstract
Intercalation is a promising ion-sorption mechanism for enhancing the energy density of electrochemical capacitors (ECs) because it offers enhanced access to the electrochemical surface area. It requires a rapid transport of ions in and out of a host material, and it must occur without phase transformations. Materials that fulfil these requirements are rare; those that do intercalate almost exclusively cations. Herein, we show that Ni3 (benzenehexathiol) (Ni3 BHT), a non-porous two-dimensional (2D) layered coordination polymer (CP), intercalates both cations and anions with a variety of charges. Whereas cation intercalation is pseudocapacitive, anions intercalate in a purely capacitive fashion. The excellent EC performance of Ni3 BHT provides a general basis for investigating similar dual-ion intercalation mechanisms in the large family of non-porous 2D CPs.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1002/ANIE.202112811
