2020年5月
Identification of Prime Factors to Maximize the Photocatalytic Hydrogen Evolution of Covalent Organic Frameworks
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
- 巻
- 142
- 号
- 21
- 開始ページ
- 9752
- 終了ページ
- 9762
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/jacs.0c02633
- 出版者・発行元
- AMER CHEMICAL SOC
Visible-light-driven hydrogen (H-2) 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 H-2 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 H-2 production of COFs to a much greater extent than the other factors.
- リンク情報
- ID情報
-
- DOI : 10.1021/jacs.0c02633
- ISSN : 0002-7863
- eISSN : 1520-5126
- Web of Science ID : WOS:000537734000021