SANS analysis of aqueous dispersions of Eu- and Gd-grafted nanodiamond particles

0518402 - ÚJF 2021 RIV US eng J - Článek v odborném periodiku
Tomchuk, O. V. - Ryukhtin, Vasil - Ivankov, O. - Vul, A. Y. - Aleksenskii, A. E. - Bulavin, L. A. - Aksenov, V. L. - Avdeev, M. V.
SANS analysis of aqueous dispersions of Eu- and Gd-grafted nanodiamond particles.
Fullerenes, Nanotubes, and Carbon Nanostructures. Roč. 28, č. 4 (2020), s. 272-276. ISSN 1536-383X. E-ISSN 1536-4046
Grant CEP: GA MŠMT LM2015056
Institucionální podpora: RVO:61389005
Klíčová slova: nanodiamond * surface grafting * small-angle neutron scattering
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 1.869, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1080/1536383X.2019.1697686

The structure of detonation nanodiamond aqueous dispersions grafted by europium or gadolinium atoms was investigated by small-angle neutron scattering over a wide size scale from 1 to 3000 nm. Similar to the previous studies of nanodiamond suspensions, a strong association of the particle into developed aggregates was revealed. While the characteristic aggregate size depends on the modification of the dispersions and varies in a wide interval of 35-1500 nm, the fractal character of clusters of nanodiamond particles (packed in a specialized branched form with a fractal dimension of 2.4) remains unchanged independent of the cluster size. The effect of the aggregate size increase upon grafting is considered as a basis for the stability reduction mechanism at the microstructural level.
Trvalý link: http://hdl.handle.net/11104/0308724