Bai, Yang, Li, Chao, Liu, Lunjie, Yamaguchi, Yuichi, Bahri, Mounib 
ORCID: 0000-0002-8336-9158, Yang, Haofan, Gardner, Adrian ORCID: 0000-0002-2423-8799, Zwijnenburg, Martijn A, Browning, Nigel D ORCID: 0000-0003-0491-251X, Cowan, Alexander J ORCID: 0000-0001-9032-3548 et al (show 3 more authors)
(2022)
Photocatalytic Overall Water Splitting Under Visible Light Enabled by a Particulate Conjugated Polymer Loaded with Palladium and Iridium.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 61 (26).
e202201299-.
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Abstract
Polymer photocatalysts have received growing attention in recent years for photocatalytic hydrogen production from water. Most studies report hydrogen production with sacrificial electron donors, which is unsuitable for large-scale hydrogen energy production. Here we show that the palladium/iridium oxide-loaded homopolymer of dibenzo[b,d]thiophene sulfone (P10) facilitates overall water splitting to produce stoichiometric amounts of H<sub>2</sub> and O<sub>2</sub> for an extended period (>60 hours) after the system stabilized. These results demonstrate that conjugated polymers can act as single component photocatalytic systems for overall water splitting when loaded with suitable co-catalysts, albeit currently with low activities. Transient spectroscopy shows that the IrO<sub>2</sub> co-catalyst plays an important role in the generation of the charge separated state required for water splitting, with evidence for fast hole transfer to the co-catalyst.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Co-Catalysts, Organic Photocatalysts, Overall Water Splitting |
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 12 Apr 2022 13:38 |
| Last Modified: | 18 Jan 2023 21:05 |
| DOI: | 10.1002/anie.202201299 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3152776 |
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