Are Keggin's POMs charged nano-colloids or multicharged anions?

POM−POM structure factor considering a pair potential of spherical charged particles using the Hayter mean spherical approximation (MSA).

Equipe L2IA

Owing to their multiple charges and their nanometric size, polyoxometalates (POMs) are at the frontier between ions and charged colloids.
We investigated here the effect of POM−POM electrostatics repulsions on their self-diffusion in water by varying POM and supporting salt concentrations. 

Lire l'article DOI : 10.1021/acs.langmuir.7b03640
A. Malinenko, A. Jonchère, L. Girard, S. Parrès-Maynadié, O. Diat and P. Bauduin. Langmuir 34 (5), 2026 (2018)