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Aleksovska, A, Lönnecke, P, Addicoat, MA 
ORCID: https://orcid.org/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
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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: | Number Type 10.1002/open.202000036 DOI 1313405 Other |
| Divisions: | Schools > School of Science and Technology |
| Record created by: | Jonathan Gallacher |
| Date Added: | 24 Apr 2020 15:31 |
| Last Modified: | 24 Apr 2020 15:31 |
| URI: | https://irep.ntu.ac.uk/id/eprint/39732 |
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