Microwave-Assisted Hydrothermal Synthesis of Ni-Mg Layered Silicate Clays

Title:Microwave-Assisted Hydrothermal Synthesis of Ni-Mg Layered Silicate Clays

Volume: 3 Issue: 1

Author(s): Fabien Baron, Suraj S.C. Pushparaj, Claude Fontaine, Matte V. Sivaiah, Alain Decarreau and Sabine Petit

Affiliation:

Keywords: Catalysis, kerolite, layered silicate, lizardite, microwave, nickel, silicate clay, synthesis.

Abstract: The synthesis of Ni-containing layered silicate clays from the lizardite-nepouite series (1:1) and kerolite-pimelite series (2:1) with random distribution of octahedral cations was feasible with the microwave-assisted hydrothermal synthesis method. These series were obtained from co-precipitate gels with Si₂Mg₃-xNixO₇.nH₂O and Si₄Mg₃-xNixO₁₁.nH₂O (x = 0, 0.5, 1, 1.5, 2, 2.5, and 3) compositions. Syntheses were performed at 220°C during 48 hours under equilibrium water pressure using microwave furnace. X-ray diffraction revealed pure 1:1 and 2:1 synthesized phyllosilicates for the lizardite and the kerolite series, respectively. Fourier transform infrared spectroscopy in both near and mid infrared regions revealed a random distribution of Ni cations in the octahedral sheet of 1:1 and 2:1 silicate clays, that is a good requirement for material applications, especially for the synthesis of metallic catalysts.

Cite this article as:

Baron Fabien, S.C. Pushparaj Suraj, Fontaine Claude, V. Sivaiah Matte, Decarreau Alain and Petit Sabine, Microwave-Assisted Hydrothermal Synthesis of Ni-Mg Layered Silicate Clays, Current Microwave Chemistry 2016; 3 (1) . https://dx.doi.org/10.2174/2213335602666150317233416