On-Surface Carbon Nitride Growth from Polymerization of 2,5,8-Triazido- s -heptazine.

Autor:	Krinninger M; TUM School of Natural Sciences, Department of Chemistry, Chair of Physical Chemistry, Technical University of Munich, Lichtenbergstr. 4, Garching D-85748, Germany.; Catalysis Research Center, Technical University of Munich, Ernst-Otto-Fischer-Str. 1, Garching D-85748, Germany.; TUM School of Natural Sciences, Department of Chemistry, Functional Nanomaterials Group, Technical University of Munich, Lichtenbergstr. 4, Garching D-85748, Germany., Bock N; TUM School of Natural Sciences, Department of Chemistry, Chair of Physical Chemistry, Technical University of Munich, Lichtenbergstr. 4, Garching D-85748, Germany.; Catalysis Research Center, Technical University of Munich, Ernst-Otto-Fischer-Str. 1, Garching D-85748, Germany., Kaiser S; TUM School of Natural Sciences, Department of Chemistry, Chair of Physical Chemistry, Technical University of Munich, Lichtenbergstr. 4, Garching D-85748, Germany.; Catalysis Research Center, Technical University of Munich, Ernst-Otto-Fischer-Str. 1, Garching D-85748, Germany., Reich J; TUM School of Natural Sciences, Department of Chemistry, Functional Nanomaterials Group, Technical University of Munich, Lichtenbergstr. 4, Garching D-85748, Germany.; Catalysis Research Center, Technical University of Munich, Ernst-Otto-Fischer-Str. 1, Garching D-85748, Germany., Bruhm T; TUM School of Natural Sciences, Department of Chemistry, Professorship of Inorganic Chemistry, Technical University of Munich, Lichtenbergstr. 4, Garching D-85748, Germany.; Catalysis Research Center, Technical University of Munich, Ernst-Otto-Fischer-Str. 1, Garching D-85748, Germany., Haag F; TUM School of Natural Sciences, Department of Physics, Chair of Experimental Physics (E20), Technical University of Munich, James-Franck Str. 1, Garching D-85748, Germany., Allegretti F; TUM School of Natural Sciences, Department of Physics, Chair of Experimental Physics (E20), Technical University of Munich, James-Franck Str. 1, Garching D-85748, Germany., Heiz U; TUM School of Natural Sciences, Department of Chemistry, Chair of Physical Chemistry, Technical University of Munich, Lichtenbergstr. 4, Garching D-85748, Germany.; Catalysis Research Center, Technical University of Munich, Ernst-Otto-Fischer-Str. 1, Garching D-85748, Germany., Köhler K; TUM School of Natural Sciences, Department of Chemistry, Professorship of Inorganic Chemistry, Technical University of Munich, Lichtenbergstr. 4, Garching D-85748, Germany.; Catalysis Research Center, Technical University of Munich, Ernst-Otto-Fischer-Str. 1, Garching D-85748, Germany., Lechner BAJ; TUM School of Natural Sciences, Department of Chemistry, Functional Nanomaterials Group, Technical University of Munich, Lichtenbergstr. 4, Garching D-85748, Germany.; Catalysis Research Center, Technical University of Munich, Ernst-Otto-Fischer-Str. 1, Garching D-85748, Germany.; Institute for Advanced Study, Technical University of Munich, Lichtenbergstr. 2a, Garching D-85748, Germany., Esch F; TUM School of Natural Sciences, Department of Chemistry, Chair of Physical Chemistry, Technical University of Munich, Lichtenbergstr. 4, Garching D-85748, Germany.; Catalysis Research Center, Technical University of Munich, Ernst-Otto-Fischer-Str. 1, Garching D-85748, Germany.
Jazyk:	angličtina
Zdroj:	Chemistry of materials : a publication of the American Chemical Society [Chem Mater] 2023 Aug 23; Vol. 35 (17), pp. 6762-6770. Date of Electronic Publication: 2023 Aug 23 (Print Publication: 2023).
DOI:	10.1021/acs.chemmater.3c01030
Abstrakt:	Carbon nitrides have recently come into focus for photo- and thermal catalysis, both as support materials for metal nanoparticles as well as photocatalysts themselves. While many approaches for the synthesis of three-dimensional carbon nitride materials are available, only top-down approaches by exfoliation of powders lead to thin-film flakes of this inherently two-dimensional material. Here, we describe an in situ on-surface synthesis of monolayer 2D carbon nitride films as a first step toward precise combination with other 2D materials. Starting with a single monomer precursor, we show that 2,5,8-triazido- s -heptazine can be evaporated intact, deposited on a single crystalline Au(111) or graphite support, and activated via azide decomposition and subsequent coupling to form a covalent polyheptazine network. We demonstrate that the activation can occur in three pathways, via electrons (X-ray illumination), via photons (UV illumination), and thermally. Our work paves the way to coat materials with extended carbon nitride networks that are, as we show, stable under ambient conditions. Competing Interests: The authors declare no competing financial interest. (© 2023 The Authors. Published by American Chemical Society.)
Databáze:	MEDLINE
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