Issue 11, 2021

Hydrothermal magic for the synthesis of new bismuth oxides

Abstract

The hydrothermal method is an interesting synthesis process for obtaining new phases. Many bismuth oxides with trivalent (Bi3+), pentavalent (Bi5+), and mixed-valence bismuth (Bi3+ and Bi5+) have been synthesized by hydrothermal reactions using NaBiO3·nH2O as the starting material. This exciting starting compound has produced a variety of crystal structures via hydrothermal reactions. The hydrothermal products may adopt PbSb2O6-, ilmenite-, tritutile-, pyrochlore-, fluorite-, and perovskite-type structures, which are never achieved by high-temperature solid-state reactions. Some of them exhibit interesting properties such as photocatalytic activity, superconductivity, and magnetic frustration. It is not too much to say that the hydrothermal route employing NaBiO3·nH2O opens a new world of crystal chemistry of bismuth oxides.

Graphical abstract: Hydrothermal magic for the synthesis of new bismuth oxides

Article information

Article type
Review Article
Submitted
13 mar 2021
Accepted
29 apr 2021
First published
01 máj 2021

Inorg. Chem. Front., 2021,8, 2918-2938

Hydrothermal magic for the synthesis of new bismuth oxides

M. Saiduzzaman, T. Takei and N. Kumada, Inorg. Chem. Front., 2021, 8, 2918 DOI: 10.1039/D1QI00337B

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