We synthesized a hydrogen-bonded organic framework (HOF) built from a CO2-derived 4,4′,4″,4‴-(1,4-phenylenebis(methanetriyl))tetrakis(piperazine-1-carbaldehyde). Single-crystal X-ray analysis revealed a two-dimensional network with a sql topology, and the HOF exhibited permanent porosity with a BET surface area of 315 m2 g–1 and high solution processability. The spin-coating process enabled the fabrication of a homogeneous film with a controllable thickness depending on the concentration of the precursor solutions. The film showed an in-plane proton conductivity of 6.2 × 10–3 S·cm–1 and an activation energy of 0.13 eV under 30 °C, 95% relative humidity.
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Siquan Zhang
Yong‐Sheng Wei
Ellan K. Berdichevsky
ACS Materials Letters
Kyoto University
Materials Science & Engineering
Vidyasirimedhi Institute of Science and Technology
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Zhang et al. (Sun,) studied this question.
www.synapsesocial.com/papers/69ba427c4e9516ffd37a2d08 — DOI: https://doi.org/10.1021/acsmaterialslett.5c01664