Gallium(III) oxide

Gallium(III) oxide is a chemical compound made from gallium and oxygen. It has the chemical formula Ga2O3. It has several polymorphs, or different structures of the same solid compound. The β polymorph is of interest as a high band gap semiconductor for power electronics.[1]

Reactions

Gallium(III) oxide is an amphoteric oxide. It can react with both acids and bases. With acids, it makes salts of the Ga3+ cation, and with bases, it makes salts of the GaO−2 anion.

It is a weak oxidizing agent, and can be reduced to gallium(I) oxide by moderately strong reducing agents like hydrogen.[2]

Sources

  1. ↑ Green, Andrew J.; et al. (2022). "β-Gallium oxide power electronics". Apl Materials. 10 (2): 029201. Bibcode:2022APLM...10b9201G. doi:10.1063/5.0060327.
  2. ↑ Carli, R.; Bianchi, C.L.; Giannantonio, R.; Ragaini, V. (1993). "Low temperature reduction of gallium in a Ga2O3/HZSM-5 catalyst". Journal of Molecular Catalysis. 83 (3): 379–389. doi:10.1016/0304-5102(93)87046-B.
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