Synthesis of colloidal dispersions of NiAl, ZnAl, NiCr, ZnCr, NiFe, and MgFe hydrotalcite-like nanoparticles

► Colloidal dispersions of hydrotalcite-like compounds were prepared by microemulsions. ► Nanoparticle sizes were between 10 and 30 nm, except for ZnAl (150-200 nm). ► Colloidal stability was investigated by dynamic light scattering and zeta potential. ► High tendency to form homogeneous stacking of plate-like crystals was evidenced.