Hydrogen-Bonded Organic Semiconductors as Stable Photoelectrocatalysts for Efficient Hydrogen Peroxide Photosynthesis

Jakesova M, Apaydin DH, Sytnyk M, Oppelt K, Heiß W, Sariciftci NS, Glowacki ED, Heiß W (2016)


Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2016

Journal

Book Volume: 26

Pages Range: 5248-5254

Journal Issue: 29

DOI: 10.1002/adfm.201601946

Abstract

Research on semiconductor photocatalysts for the conversion of solar energy into chemical fuels has been at the forefront of renewable energy technologies. Water splitting to produce H and CO reduction to hydrocarbons are the two prominent approaches. A lesser-known process, the conversion of solar energy into the versatile high-energy product HO via reduction of O has been proposed as an alternative concept. Semiconductor photoelectrodes for the direct photosynthesis of HO from O have not been applied up to now. Photoelectrocatalytic oxygen reduction to peroxides in aqueous electrolytes by hydrogen-bonded organic semiconductor is observed photoelectrodes. These materials have been found to be remarkably stable operating in a photoelectrochemical cell converting light into HO under constant illumination for at least several days, functioning in a pH range from 1 to 12. This is the first report of a semiconductor photoelectrode for HO production, with catalytic performance exceeding prior reports on photocatalysts by one to two orders of magnitude in terms of peroxide yield/catalyst amount/time. The combination of a strongly reducing conduction band energy level with stability in aqueous electrolytes opens new avenues for this widely available materials class in the field of photo(electro) catalysis.

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APA:

Jakesova, M., Apaydin, D.H., Sytnyk, M., Oppelt, K., Heiß, W., Sariciftci, N.S.,... Heiß, W. (2016). Hydrogen-Bonded Organic Semiconductors as Stable Photoelectrocatalysts for Efficient Hydrogen Peroxide Photosynthesis. Advanced Functional Materials, 26(29), 5248-5254. https://dx.doi.org/10.1002/adfm.201601946

MLA:

Jakesova, Marie, et al. "Hydrogen-Bonded Organic Semiconductors as Stable Photoelectrocatalysts for Efficient Hydrogen Peroxide Photosynthesis." Advanced Functional Materials 26.29 (2016): 5248-5254.

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