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Donor–Acceptor-Type Heptazine-Based Polymer Networks for Photocatalytic Hydrogen Evolution

Title data

Kailasam, Kamalakannan ; Mesch, Maria B. ; Möhlmann, Lennart ; Baar, Moritz ; Blechert, Siegfried ; Schwarze, Michael ; Schröder, Marc ; Schomäcker, Reinhard ; Senker, Jürgen ; Thomas, Arne:
Donor–Acceptor-Type Heptazine-Based Polymer Networks for Photocatalytic Hydrogen Evolution.
In: Energy Technology. Vol. 4 (1 June 2016) Issue 6 . - pp. 744-750.
ISSN 2194-4296
DOI: https://doi.org/10.1002/ente.201500478

Official URL: Volltext

Abstract in another language

A heptazine-based polymer network (HMP-3) with a donor–acceptor (D–A) structure was prepared and tested as catalyst for photocatalytic hydrogen evolution from water. Compared to other heptazine-based materials, which are typically prepared at high temperatures and have recently received much interest as metal-free photocatalysts, the low-temperature protocol applied here allows the defined introduction of organic functional groups within the polymer backbone. The structure of HMP-3 contains alternating heptazine and benzothiadiazole moieties as electron acceptors connected by aminobenzene bridges as electron donors. The resulting material leads to enhanced hydrogen evolution compared to graphitic carbon nitride materials prepared at high temperatures (>500 °C) most probably because of the stabilization of photogenerated charge carriers in the D–A structure.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: donor–acceptor systems; hydrogen; photochemistry; polymers; water splitting
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry III > Chair Anorganic Chemistry III - Univ.-Prof. Dr. Jürgen Senker
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry III
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 12 Sep 2016 07:30
Last Modified: 21 Nov 2017 10:33
URI: https://eref.uni-bayreuth.de/id/eprint/34694