Title: Synthesis and perspectives of Ag/In₂O₃ inverse opal

Authors: Alisa V. Lyutova; Shodruz T. Umedov; Mikhail O. Astafurov; Rustam I. Arabov; Maqsudjon M. Ibrohimov; Tatyana V. Fillipova; Mikhail R. Chekin; Anastasia V. Grigorieva

Addresses: Lomonosov Moscow State University, Leninskiye gory 1/3, 119991, Moscow, Russia ' Lomonosov Moscow State University, Leninskiye gory 1/3, 119991, Moscow, Russia ' Lomonosov Moscow State University, Leninskiye gory 1/3, 119991, Moscow, Russia ' Lomonosov Moscow State University, Leninskiye gory 1/3, 119991, Moscow, Russia ' Lomonosov Moscow State University, Leninskiye gory 1/3, 119991, Moscow, Russia ' Lomonosov Moscow State University, Leninskiye gory 1/3, 119991, Moscow, Russia ' Lomonosov Moscow State University, Leninskiye gory 1/3, 119991, Moscow, Russia ' Lomonosov Moscow State University, Leninskiye gory 1/3, 119991, Moscow, Russia

Abstract: Indium(III) hydroxide nanopowder has been successfully obtained by hydrolysis of indium chloride in alkaline alcohol solutions. Its suspension has been used to form thick films of In₂O₃ using a drop-coating method with a following thermal decomposition of indium hydroxide upon the glass substrate. Concentrations of precursors have been varied to influence well a particle size in colloids. The same synthesis has been applied to form In₂O₃ inverse opals by impregnation of polystyrene opals with an ethanol suspension of In(OH)₃ nanopowder of the finest particles. Phase composition, temperature of decomposition and micromorphology of the samples have been investigated by X-ray phase analysis, dynamic light scattering, thermal analysis, transmission and scanning electron microscopies.

Keywords: indium oxide; nanopowder; inverse opal; impregnation synthesis; indium hydroxide In(OH)₃; hydrolysis; thermal decomposition.

DOI: 10.1504/IJNT.2024.136514

International Journal of Nanotechnology, 2024 Vol.21 No.1/2, pp.99 - 111

Published online: 05 Feb 2024 *

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