Single-Step Synthesis of Nanocrystalline Doped-Lanthanum Hydroxide Materials from Heterometallic Alkoxides

S. Daniele (1) , L.G. Hubert-Pfalzgraf (1)

1 IRC - Institut de recherches sur la catalyse

The reactions between La3(OBut)9(HOBut)2 and various trimethylsilylamide species M[N(SiMe3)2] x(THF)y (M = K, Ba, Pb) have been investigated as a means to acceed to heterometallic La-M species. The La-K deriv. was used as synthon in metathesis reaction toward CuCl2 in order to get an heterometallic La-Cu deriv. All compds. were characterized by elemental anal., FT-IR, EPR and multinuclear NMR spectroscopies. Their hydrolyzes at room temp. in THF led to nanocryst. doped-lanthanum hydroxides. The as-prepd. materials were characterized by elemental anal., XRD and TEM. Their thermal behavior was studied by XRD and compared with that of yttrium derivs.

Domaines: Catalyse

S. Daniele, L.G. Hubert-Pfalzgraf. Single-Step Synthesis of Nanocrystalline Doped-Lanthanum Hydroxide Materials from Heterometallic Alkoxides. Journal of Sol-Gel Science and Technology, 2005, 35 (1), pp.57-64. ⟨hal-00012473⟩