Front Chem 2020-8-584060.pdf (2.01 MB)
A time-resolved spectroscopic investigation of a novel BODIPY copolymer and its potential use as a photosensitiser for hydrogen evolution
journal contributionposted on 2022-11-29, 12:15 authored by Aoibhín A Cullen, Katharina Heintz, Laura O'Reilly, Conor Long, Andreas HeiseAndreas Heise, Robert MurphyRobert Murphy, Joshua Karlsson, Elizabeth Gibson, Gregory M Greetham, Michael Towrie, Mary T Pryce
A novel 4,4-difuoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) copolymer with diethynylbenzene has been synthesised, and its ability to act as a photosensitiser for the photocatalytic generation of hydrogen was investigated by time-resolved spectroscopic techniques spanning the ps- to ns-timescales. Both transient absorption and time-resolved infrared spectroscopy were used to probe the excited state dynamics of this photosensitising unit in a variety of solvents. These studies indicated how environmental factors can influence the photophysics of the BODIPY polymer. A homogeneous photocatalytic hydrogen evolution system has been developed using the BODIPY copolymer and cobaloxime which provides hydrogen evolution rates of 319 μmol h−1 g−1 after 24 h of visible irradiation.
Irish Research Council Enterprise Scheme (EPSPG/2016/158)
IRC Horizons Funding (REPRO/2016/84)
EU Access Grant (2019 No. 19230040)
CommentsThe original article is available at https://www.frontiersin.org/
Published CitationCullen AA. et al. A time-resolved spectroscopic investigation of a novel BODIPY copolymer and its potential use as a photosensitiser for hydrogen evolution. Front Chem. 2020;8:584060.
Publication Date19 Oct 2020
- Chemistry and Pharmaceutical Sciences
- Biomaterials and Regenerative Medicine
PublisherFrontiers Media SA
- Published Version (Version of Record)