Nature-Inspired Photocatalytic Hydrogen Production with a Flavin Photosensitizer
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Date
2024-01-26
Authors
Ivanová, Lucia
Truksa, Jan
Whang, Dong Ryeol
Sariciftci, Niyazi Serdar
Yumusak, Cigdem
Krajčovič, Jozef
0000-0001-5630-4431Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
AMER CHEMICAL SOC
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Abstract
Green hydrogen, by definition, must be produced with renewable energy sources without using fossil fuels. To transform the energy system, we need a fully sustainable production of green and renewable energy as well as the introduction of such "solar fuels" to tackle the chemical storage aspect of renewable energies. Conventional electrolysis of water splitting into oxygen and hydrogen gases is a clean and nonfossil method, but the use of massive noble-metal electrodes makes it expensive. Direct photocatalytic hydrogen evolution in water is an ideal approach, but an industrial scale is not available yet. In this paper, we intend to introduce flavins as metal-free organic photosensitizers for photoinduced reduction processes. Specifically, a flavin photosensitizer was employed for the photocatalytic evolution of hydrogen gas in aqueous media. The ratio of photosensitizer to cocatalyst concentration has been found to affect the efficiency of the hydrogen evolution reaction. Since flavins are nature-inspired molecules (like vitamin B2) with easily tunable properties through structure modification, this family of compounds opens the door for new possibilities in sustainable green hydrogen production.
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Citation
ACS OMEGA. 2024, vol. 9, issue 5, p. 5534-5540.
https://pubs.acs.org/doi/epdf/10.1021/acsomega.3c07458
https://pubs.acs.org/doi/epdf/10.1021/acsomega.3c07458
Document type
Peer-reviewed
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Published version
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Language of document
en