preprints.org > chemistry and materials science > nanotechnology > doi: 10.20944/preprints202309.1317.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 15 September 2023 / Approved: 19 September 2023 / Online: 20 September 2023 (04:46:35 CEST)
Version 2 : Received: 21 September 2023 / Approved: 22 September 2023 / Online: 25 September 2023 (04:55:57 CEST)

We report on a new form of nanoscale carbon nitride in the shape of single layer half dome structures grown on the step edges of boron nitride sheets. The half dome structure grown on the step edges of boron nitride sheets. The half dome structures are formed spontaneously at high temperature using Iron oxide nanoparticles capped with tetremethylammonium hydroxide supported on BN sheets. During the combustion process the support, firstly, acted as a reducing agent, secondly, as a source of nitrogen that permitted the transformation of the organic capping agent in sp1 CN chains linked with sp2 CN domains. During the Ostwald ripening process smaller nanoparticles migrates towards bigger nanoparticles, when the nanoparticles come across the step edges of few layer boron nitride sheets the half dome structure is formed. This new method of synthesis has demonstrated for the first time the formation of half dome structures containing cyanopolyynes sp1 chains and sp2 carbon nitride domains.

Ostwald, chains, cyanopolyynes, carbon nitride, half dome

Chemistry and Materials Science, Nanotechnology

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