Photoelectrochemical water splitting by triazine based covalent organic framework

Pradhan, A. and Addicoat, M.A. ORCID: 0000-0002-5406-7927, 2022. Photoelectrochemical water splitting by triazine based covalent organic framework. Sustainable Energy and Fuels. ISSN 2398-4902

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Abstract

Photo electrochemical (PEC) water splitting under visible light irradiation is a very promising path for green and sustainable hydrogen production. PEC process has gained attracted enormous research interest due to the potential of direct conversion of solar power into chemical fuel. Herein, we present a covalent organic framework (COF) which shows promise as an ideal photoabsorber due to the combination of efficient light harvesting sites with a suitable band gap and catalytic sites for HER. Under solvothermal condition a Schiff base type condensation between 1,3,5-tris (4-formylbiphenyl) benzene (TFBB), 2, 4, 6-Tris(4-aminophenyl)-1, 3, 5-triazine (TAT) and 2, 4, 6-Tris(4-aminophenyl)-benzene (TAB) yields a crystalline, 2-D covalent organic frameworks TFBB-TAT and TFBB-TAB COF respectively. The as prepared triazine containing TFBB-TAT COF shows better photo electrochemical (PEC) water splitting compared to non-triazine based TFBB-TAB COF. This work enriches the structural variety of COFs and plays an important role in PEC water splitting, also illustrating the intriguing electrochemical behaviour of this class of materials.

Item Type: Journal article
Publication Title: Sustainable Energy and Fuels
Creators: Pradhan, A. and Addicoat, M.A.
Publisher: Royal Society of Chemistry (RSC)
Date: 1 August 2022
ISSN: 2398-4902
Identifiers:
NumberType
10.1039/d2se00827kDOI
1578845Other
Divisions: Schools > School of Science and Technology
Record created by: Linda Sullivan
Date Added: 03 Aug 2022 13:00
Last Modified: 03 Aug 2022 13:00
URI: http://irep.ntu.ac.uk/id/eprint/46819

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