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

Oleksandr V. Tomchuk, Vasyl Ryukhtin, Oleksandr Ivankov, Aleksandr Ya. Vul’, Aleksandr E. Aleksenskii, Leonid A. Bulavin, Victor L. Aksenov, Mikhail V. Avdeev

Research output: Article

Abstract

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.

Original languageEnglish
Pages (from-to)272-276
Number of pages5
JournalFullerenes Nanotubes and Carbon Nanostructures
Volume28
Issue number4
DOIs
Publication statusPublished - ápr. 2 2020

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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    Tomchuk, O. V., Ryukhtin, V., Ivankov, O., Ya. Vul’, A., Aleksenskii, A. E., Bulavin, L. A., Aksenov, V. L., & Avdeev, M. V. (2020). SANS analysis of aqueous dispersions of Eu- and Gd-grafted nanodiamond particles. Fullerenes Nanotubes and Carbon Nanostructures, 28(4), 272-276. https://doi.org/10.1080/1536383X.2019.1697686