at Google ScholarTitle data
Lau, Vincent Wing-hei ; Mesch, Maria B. ; Duppel, Viola ; Blum, Volker ; Senker, Jürgen ; Lotsch, Bettina V.:
Low-Molecular-Weight Carbon Nitrides for Solar Hydrogen Evolution.
In: Journal of the American Chemical Society.
Vol. 137
(2015)
Issue 3
.
- pp. 1064-1072.
ISSN 1520-5126
DOI: https://doi.org/10.1021/ja511802c
Abstract in another language
This work focuses on the control of the polymerization process for melon (graphitic carbon nitride), with the aim of improving its photocatalytic activity intrinsically. We demonstrate here that reduction of the synthesis temperature leads to a mixture of the monomer melem and its higher condensates. We show that this mixture can be separated and provide evidence that the higher condensates are isolated oligomers of melem. On evaluating their photocatalytic activity for hydrogen evolution, the oligomers were found to be the most active species, having up to twice the activity of the monomer/oligomer mixture of the as-synthesized material, which in turn has 3 times the activity of the polymer melon, the literature benchmark. These results highlight the role of defects, i.e., chain terminations, in increasing the catalytic activity of carbon nitrides and at the same time point to the ample potential of intrinsically improving the photocatalytic activity of carbon nitride, especially through the selective synthesis of the active phase.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | ISI:000348690100015 |
| Institutions of the University: | 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 Inorganic Chemistry III Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry III > Chair Inorganic Chemistry III - Univ.-Prof. Dr. Jürgen Senker Faculties |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science 500 Science > 540 Chemistry |
| Date Deposited: | 18 Mar 2021 08:13 |
| Last Modified: | 26 Jul 2022 08:41 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/64074 |