Synthesis of Ultra-Incompressible and Recoverable Carbon Nitrides Featuring CN4 Tetrahedra

Synthesis of Ultra-Incompressible and Recoverable Carbon Nitrides Featuring CN4 Tetrahedra

© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 3 vom: 24. Jan., Seite e2308030
1. Verfasser: Laniel, Dominique (VerfasserIn)
Weitere Verfasser: Trybel, Florian, Aslandukov, Andrey, Khandarkhaeva, Saiana, Fedotenko, Timofey, Yin, Yuqing, Miyajima, Nobuyoshi, Tasnádi, Ferenc, Ponomareva, Alena V, Jena, Nityasagar, Akbar, Fariia Iasmin, Winkler, Bjoern, Néri, Adrien, Chariton, Stella, Prakapenka, Vitali, Milman, Victor, Schnick, Wolfgang, Rudenko, Alexander N, Katsnelson, Mikhail I, Abrikosov, Igor A, Dubrovinsky, Leonid, Dubrovinskaia, Natalia
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article 3D frameworks of CN4 tetrahedra ambient conditions recoverability carbon nitrides diamond anvil cell high pressure syntheses single-crystal X-ray diffraction superhardness ultra-incompressibility
Beschreibung
Zusammenfassung:© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
Carbon nitrides featuring three-dimensional frameworks of CN4 tetrahedra are one of the great aspirations of materials science, expected to have a hardness greater than or comparable to diamond. After more than three decades of efforts to synthesize them, no unambiguous evidence of their existence has been delivered. Here, the high-pressure high-temperature synthesis of three carbon-nitrogen compounds, tI14-C3 N4 , hP126-C3 N4 , and tI24-CN2 , in laser-heated diamond anvil cells, is reported. Their structures are solved and refined using synchrotron single-crystal X-ray diffraction. Physical properties investigations show that these strongly covalently bonded materials, ultra-incompressible and superhard, also possess high energy density, piezoelectric, and photoluminescence properties. The novel carbon nitrides are unique among high-pressure materials, as being produced above 100 GPa they are recoverable in air at ambient conditions
Beschreibung:Date Revised 18.10.2024
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202308030