Preparation and characterization of colloidal dispersions of layered niobium chalcogenides

Preparation and characterization of colloidal dispersions of layered niobium chalcogenides Full article

Journal

Colloids and Surfaces A: Physicochemical and Engineering Aspects
ISSN: 1873-4359 , E-ISSN: 0927-7757

Output data

Year: 2014, Volume: 461, Pages: 30-39 Pages count : 10 DOI: 10.1016/j.colsurfa.2014.07.021

Authors

Artemkina Sofya B. ^1,2 , Podlipskaya Tatyana Yu ¹ , Bulavchenko Alexander I. ¹ , Komonov Alexander I. ³ , Mironov Yuri V. ^1,2 , Fedorov Vladimir E. ^1,2

Affiliations

1	Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Akad. Lavrentiev Ave., 630090 Novosibirsk, Russian Federation
2	Novosibirsk State University, 2, Pirogova Str., 630090 Novosibirsk, Russian Federation
3	Rzhanov Institute of Semiconductors SB RAS, 2, Akad. Rzhanov Str., 630090 Novosibirsk, Russian Federation

Stable colloidal solutions of niobium chalcogenides NbQ2 and NbQ3 (Q = S, Se) in organic solvents – CH3CN, dmf, iPrOH, EtOH, EtOH/H2O (vol. 1/1), n-BuOH were prepared by the ultrasonic treatment. According to the DLS and AFM data the particle sizes distribution in dispersions is rather wide: particle sizes vary from 70 to 400 nm, and the mean sizes are in range 150 – 200 nm. DLS polymodal and monomodal analyses were carried out for the colloidal solutions of NbQ2 and NbQ3 (Q = S, Se) in acetonitrile. The particles diffusive Brownian motion in the acetonitrile colloidal solutions is better described by diffusion of disc-shaped particles with monomodal distributions for NbQ3 and bimodal distributions for NbQ2. A series of thin films prepared from the colloidal solutions shown that the particles retain their original crystal structures, at the same time strong texturizing of the films is appeared.

Artemkina S.B. , Podlipskaya T.Y. , Bulavchenko A.I. , Komonov A.I. , Mironov Y.V. , Fedorov V.E.
Preparation and characterization of colloidal dispersions of layered niobium chalcogenides
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2014. V.461. P.30-39. DOI: 10.1016/j.colsurfa.2014.07.021 WOS Scopus РИНЦ OpenAlex

Submitted:	Mar 19, 2014
Accepted:	Jul 21, 2014
Published online:	Jul 29, 2014

Web of science:	WOS:000343351400005
Scopus:	2-s2.0-84905701599
Elibrary:	23979522
OpenAlex:	W1987273707

DB	Citing
OpenAlex	26
Web of science	26
Scopus	27
Elibrary	28