Design of 2D-nanocrystals in water: preparation, structure and functionalization.

Autor:	Aslanov, Leonid, Zakharov, Valery, Paseshnichenko, Ksenia, Yatsenko, Aleksandr, Orekhov, Andrey, Tafeenko, Viktor, Chernyshev, Vladimir
Předmět:	NANOCRYSTAL synthesis CRYSTAL structure PHENOXIDES LEAD sulfide WATER chemistry TRANSMISSION electron microscopy
Zdroj:	Pure & Applied Chemistry; May2018, Vol. 90 Issue 5, p833-844, 12p, 1 Color Photograph, 2 Diagrams, 5 Graphs
Abstrakt:	A new method for synthesis of 2D nanocrystals in water was proposed. The use of perfluorothiophenolate ions as surfactant allowed us to produce 2D single-crystal nanosheets of CaS at pH=9 and flat nanocrystals of PbS at pH=9 at room temperature. Mesocrystalline nanobelts of CdS and mesocrystals of PbS were obtained at pH=3–5 and pH=10–12, respectively. Morphology, structure and chemical composition of nanoparticles were characterized by high-resolution transmission electron microscopy, electron diffraction and energy dispersive X-ray spectroscopy. A mechanism of nanoparticles formation was discussed. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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