A comprehensive study of the mechanism of formation of polyol-made hausmannite nanoparticles

From molecular species to solid precipitation

Tarik Rhadfi, Lorette Sicard, Fabienne Testard, Olivier Taché, Ahmed Atlamsani, Elodie Anxolabéhère-Mallart, Yann Le Du, Laurent Binet, Jean Yves Piquemal

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This study aims at achieving a better understanding of the mechanisms of formation of Mn 3O 4 nanoparticles prepared by the polyol process. The role of each reactant is studied, and a possible scheme of reaction is proposed, involving the activation of dioxygen by Mn(II) species. The growth of the particles (evolution of the size and concentration of particles) has been followed in solution by SAXS, and the results have been compared to those obtained by other techniques on dried powders. The results indicate a decrease of the number of particles in solution with time together with their enlargement. A stabilization of the size and number of particles is reached after a few hours. The shape of the particles then evolves into a truncated ditetragonal-dipyramidal polyhedron.

Original languageEnglish
Pages (from-to)5516-5523
Number of pages8
JournalJournal of Physical Chemistry C
Volume116
Issue number9
DOIs
Publication statusPublished - 8 Mar 2012
Externally publishedYes

Fingerprint

Polyols
Nanoparticles
nanoparticles
Powders
Stabilization
Chemical activation
Oxygen
polyhedrons
stabilization
polyol
manganese oxide
activation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

A comprehensive study of the mechanism of formation of polyol-made hausmannite nanoparticles : From molecular species to solid precipitation. / Rhadfi, Tarik; Sicard, Lorette; Testard, Fabienne; Taché, Olivier; Atlamsani, Ahmed; Anxolabéhère-Mallart, Elodie; Le Du, Yann; Binet, Laurent; Piquemal, Jean Yves.

In: Journal of Physical Chemistry C, Vol. 116, No. 9, 08.03.2012, p. 5516-5523.

Research output: Contribution to journalArticle

Rhadfi, T, Sicard, L, Testard, F, Taché, O, Atlamsani, A, Anxolabéhère-Mallart, E, Le Du, Y, Binet, L & Piquemal, JY 2012, 'A comprehensive study of the mechanism of formation of polyol-made hausmannite nanoparticles: From molecular species to solid precipitation', Journal of Physical Chemistry C, vol. 116, no. 9, pp. 5516-5523. https://doi.org/10.1021/jp212454m
Rhadfi, Tarik ; Sicard, Lorette ; Testard, Fabienne ; Taché, Olivier ; Atlamsani, Ahmed ; Anxolabéhère-Mallart, Elodie ; Le Du, Yann ; Binet, Laurent ; Piquemal, Jean Yves. / A comprehensive study of the mechanism of formation of polyol-made hausmannite nanoparticles : From molecular species to solid precipitation. In: Journal of Physical Chemistry C. 2012 ; Vol. 116, No. 9. pp. 5516-5523.
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