Identification of Prime Factors to Maximize the Photocatalytic Hydrogen Evolution of Covalent Organic Frameworks

Ghosh S, Nakada A, Springer MA, Kawaguchi T, Suzuki K, Kaji H, Baburin I, Kuc A, Heine T, Suzuki H, Abe R, Seki S (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Journal of the American Chemical Society American Chemical Society

Book Volume: 142

Pages Range: 9752-9762

Journal Issue: 21

DOI: 10.1021/jacs.0c02633

Abstract

Visible-light-driven hydrogen (H2) production from water is a promising strategy to convert and store solar energy as chemical energy. Covalent organic frameworks (COFs) are front runners among different classes of organic photocatalysts. The photocatalytic activity of COFs depends on numerous factors such as the electronic band gap, crystallinity, surface area, exciton migration, stability of transient species, charge separation and transport, etc. However, it is challenging to fine tune all of these factors simultaneously to enhance the photocatalytic activity. Hence, in this report, an effort has been made to understand the interplay of these factors and identify the key factors for efficient photocatalytic H2 production through a structure-property-activity relationship. Careful molecular engineering allowed us to optimize all of the above plausible factors impacting the overall catalytic activities of a series of isoreticular COFs. The present study determines three prime factors: light absorption, charge carrier generation, and its transport, which influence the photocatalytic H2 production of COFs to a much greater extent than the other factors.

Involved external institutions

Kyoto University / 京都大学 Kyōto daigaku JP Japan (JP) Technische Universität Dresden DE Germany (DE) Helmholtz-Zentrum Dresden-Rossendorf (HZDR) DE Germany (DE)

How to cite

APA:

Ghosh, S., Nakada, A., Springer, M.A., Kawaguchi, T., Suzuki, K., Kaji, H.,... Seki, S. (2020). Identification of Prime Factors to Maximize the Photocatalytic Hydrogen Evolution of Covalent Organic Frameworks. Journal of the American Chemical Society, 142(21), 9752-9762. https://doi.org/10.1021/jacs.0c02633

MLA:

Ghosh, Samrat, et al. "Identification of Prime Factors to Maximize the Photocatalytic Hydrogen Evolution of Covalent Organic Frameworks." Journal of the American Chemical Society 142.21 (2020): 9752-9762.

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