The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.
Graphitic carbon nitride materials: variation of structure and morphology and their use as metal-free catalysts
Abstract
Graphitic carbon nitride, g-C3N4, can be made by polymerization of cyanamide, dicyandiamide or melamine. Depending on reaction conditions, different materials with different degrees of condensation, properties and reactivities are obtained. The firstly formed polymeric C3N4 structure, melon, with pendant amino groups, is a highly ordered polymer. Further reaction leads to more condensed and less defective C3N4 species, based on tri-s-triazine (C6N7) units as elementary building blocks. High resolution transmission electron microscopy proves the extended two-dimensional character of the condensation motif. Due to the polymerization-type synthesis from a liquid precursor, a variety of material nanostructures such as nanoparticles or mesoporous powders can be accessed. Those nanostructures also allow fine tuning of properties, the ability for intercalation, as well as the possibility to give surface-rich materials for heterogeneous reactions. Due to the special semiconductor properties of carbon nitrides, they show unexpected catalytic activity for a variety of reactions, such as for the activation of benzene, trimerization reactions, and also the activation of carbon dioxide. Model calculations are presented to explain this unusual case of heterogeneous, metal-free catalysis. Carbon nitride can also act as a heterogeneous reactant, and a new family of metal nitride nanostructures can be accessed from the corresponding oxides.
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Cites
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Cited by
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Metadata
- Authors
- Thomas, A., Fischer, A., Goettmann, F., Antonietti, M., Müller, J.-O., Schlögl, R., & Carlsson, J. M.
- Venue
- Journal of Materials Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2008
- Volume
- 18
- Issue
- 41
- Pages
- 4893
- ISSN
- 0959-9428 (ISSN-L)
- 1364-5501
- OpenAlex
- W2167821865
- Cited by
- 3,419
- References
- 42
- FWCI
- 19.43
- Type
- journal article
- Language
- en
- Open access
- closed
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