Electrochemical Synthesis of Large Area Two-Dimensional Metal-Organic Framework Films on Copper Anodes

Youxing Liu; Yanan Wei; Minghui Liu; Yichao Bai; Xinyu Wang; Shengcong Shang; Jianyi Chen; Yunqi Liu

doi:10.1002/anie.202012971

Electrochemical Synthesis of Large Area Two-Dimensional Metal-Organic Framework Films on Copper Anodes

Angew Chem Int Ed Engl. 2021 Feb 8;60(6):2887-2891. doi: 10.1002/anie.202012971. Epub 2020 Dec 10.

Authors

Youxing Liu^{1

2}, Yanan Wei^{2

3}, Minghui Liu^{1

2}, Yichao Bai^{1

2}, Xinyu Wang^{1

2}, Shengcong Shang^{1

2}, Jianyi Chen^{1

2}, Yunqi Liu^{1

2}

Affiliations

¹ Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
² University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
³ College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.

PMID: 33300656
DOI: 10.1002/anie.202012971

Abstract

Owing to their excellent physical and electrical properties, metal-organic framework (MOF) materials with well-defined supramolecular structures have received extensive research attention. However, the fabrication of large-area two-dimensional (2D) MOF films is still a significant challenge. Herein, we propose a novel electrochemical (EC) synthesis method for the preparation of large-area Cu₃ (HHTP)₂ MOF film on single-crystal Cu (100) anode. The surface reaction was achieved via charge-induced molecular assembly. The synthesized MOF film exhibited a high crystalline quality with an electrical conductivity of approximately 0.087 S cm^-1 , which was around 1000 times larger than the previously reported values for the same material prepared by the interface method. In addition, Cu₂ (MTCP), Cu₃ (BTPA)₂ , and Cu₃ (TPTC)₂ MOF films were synthesized on Cu foil with the same strategy, which confirmed the universality of the proposed method. This controllable EC method can be effectively applied to the industrial-scale production of 2D MOF films on Cu foil.

Keywords: charge-induced molecular assembly; electrochemical synthesis; metal-organic frameworks; two-dimensional film.

Abstract

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