Catalytic activity towards hydrogen evolution dependent of the degree of conjugation and absorption of six organic chromophores

Aleksovska, A., Lönnecke, P., Addicoat, M.A. ORCID: 0000-0002-5406-7927, Gläser, R. and Hey‐Hawkins, E., 2020. Catalytic activity towards hydrogen evolution dependent of the degree of conjugation and absorption of six organic chromophores. ChemistryOpen, 9 (4), pp. 405-408. ISSN 2191-1363

[img]
Preview
Text
1313405_Addicoat.pdf - Post-print

Download (1MB) | Preview
[img]
Preview
Text
1313405_supp_Addicoat.pdf - Supplemental Material

Download (374kB) | Preview

Abstract

Conjugated materials can, in many cases, absorb visible light because of their delocalized π electron system. Such materials have been widely used as a photoactive layers in organic photovoltaic devices and as photosensitizers in dye‐sensitized solar cells. Additionally, these materials have been reported for applications in solar fuel production, working as photocatalysts for the hydrogen evolution reaction (HER). The synthesis of three flexible vinyl groups‐containing chromophores is reported. The catalytic activity towards hydrogen evolution of these chromophores has been investigated and compared to their non‐vinyl‐containing analogues. The catalytic effect was confirmed using two different approaches: electrochemical, using the chromophores to modify a working electrode, and photocatalytic, using the chromophores combined with platinum nanoparticles. A relationship between the degree of conjugation and the catalytic activity of the chromophores has been observed with the electrochemical method, while a relationship between the UV absorption in the solid state and the photocatalytic effect with platinum nanoparticles was observed.

Item Type: Journal article
Publication Title: ChemistryOpen
Creators: Aleksovska, A., Lönnecke, P., Addicoat, M.A., Gläser, R. and Hey‐Hawkins, E.
Publisher: Wiley
Date: 1 April 2020
Volume: 9
Number: 4
ISSN: 2191-1363
Identifiers:
NumberType
10.1002/open.202000036DOI
1313405Other
Divisions: Schools > School of Science and Technology
Depositing User: Jonathan Gallacher
Date Added: 24 Apr 2020 15:31
Last Modified: 24 Apr 2020 15:31
URI: http://irep.ntu.ac.uk/id/eprint/39732

Actions (login required)

Edit View Edit View

Views

Views per month over past year

Downloads

Downloads per month over past year