Synthesis of nanometric platelet-like Ni(OH)(2) particles is described. The role of several experimental parameters on the particle size is investigated. A colloidal dispersion of particles is produced by adsorbing ionizable organic ligands (trisodium citrate) on the particle surface. The stability of this colloidal dispersion and the particle charge density are determined for different citrate ions concentrations. (C) 2004 Elsevier Inc. All rights reserved.