CO <sub>2</sub> -Derived Synthesis of Hydrogen-Bonded Organic Framework Films
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.
Authors
- Satoshi Horike (ORCID: https://orcid.org/0000-0001-8530-6364)
- Zhichong Yu (ORCID: https://orcid.org/0000-0002-8479-1780)
- Loris Lombardo (ORCID: https://orcid.org/0000-0003-2968-6686)
- Ellan K. Berdichevsky (ORCID: https://orcid.org/0000-0002-8028-5776)
- Yong‐Sheng Wei (ORCID: https://orcid.org/0000-0001-8501-3748)
- Cheng Luo (ORCID: https://orcid.org/0009-0004-0957-8674)
- Siquan Zhang
- Yongqi Ren
Institutions
- Kyoto University (JP)
- Division of Materials Science and Engineering (AU)
- Vidyasirimedhi Institute of Science and Technology (TH)
Publication Details
- Journal
- ACS Materials Letters
- Published
- 2026-03-15
- DOI
- https://doi.org/10.1021/acsmaterialslett.5c01664
- Primary Topic
- Covalent Organic Framework Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00