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Title: Integrated Soft Porosity and Electrical Properties of Conductive-on-Insulating Metal-Organic Framework Nanocrystals
Authors: Yao, Ming-Shui
Otake, Ken-ichi
Zheng, Jiajia
Tsujimoto, Masahiko
Gu, Yi-Fan
Zheng, Lu
Wang, Ping
Mohana, Shivanna
Bonneau, Mickaele
Koganezawa, Tomoyuki
Honma, Tetsuo
Ashitani, Hirotaka
Kawaguchi, Shogo
Kubota, Yoshiki
Kitagawa, Susumu
Author's alias: 大竹, 研一
辻本, 将彦
北川, 進
Keywords: Conductivity
Metal-Organic Frameworks
Shape Memory
Soft Porosity
Issue Date: 28-Aug-2023
Publisher: Wiley
Journal title: Angewandte Chemie International Edition
Volume: 62
Issue: 35
Thesis number: e202303903
Abstract: A one-stone, two-bird method to integrate the soft porosity and electrical properties of distinct metal–organic frameworks (MOFs) into a single material involves the design of conductive-on-insulating MOF (cMOF-on-iMOF) heterostructures that allow for direct electrical control. Herein, we report the synthesis of cMOF-on-iMOF heterostructures using a seeded layer-by-layer method, in which the sorptive iMOF core is combined with chemiresistive cMOF shells. The resulting cMOF-on-iMOF heterostructures exhibit enhanced selective sorption of CO₂ compared to the pristine iMOF (298 K, 1 bar, S[CO₂/H₂] from 15.4 of ZIF-7 to 43.2–152.8). This enhancement is attributed to the porous interface formed by the hybridization of both frameworks at the molecular level. Furthermore, owing to the flexible structure of the iMOF core, the cMOF-on-iMOF heterostructures with semiconductive soft porous interfaces demonstrated high flexibility in sensing and electrical “shape memory” toward acetone and CO₂. This behavior was observed through the guest-induced structural changes of the iMOF core, as revealed by the operando synchrotron grazing incidence wide-angle X-ray scattering measurements.
Rights: This is the peer reviewed version of the following article: [Yao, M.-S., Otake, K.-i., Zheng, J., Tsujimoto, M., Gu, Y.-F., Zheng, L., Wang, P., Mohana, S., Bonneau, M., Koganezawa, T., Honma, T., Ashitani, H., Kawaguchi, S., Kubota, Y., Kitagawa, S., Angew. Chem. Int. Ed. 2023, 62, e202303903.], which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
The full-text file will be made open to the public on 12 June 2024 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
DOI(Published Version): 10.1002/anie.202303903
PubMed ID: 37211927
Appears in Collections:Journal Articles

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