Ambient pressure synthesis of corundum-type IN2O3.
This communication reports the formation of the high-pressure modification of indium (III) oxide (so-called corundum-type or hexagonal In2O3) under ambient pressure. Corundum-type In2O3 was obtained by precipitation from the solution of indium nitrate in methanol by adding concentrated ammonia solution and subsequent calcination of the obtained precipitate at 250-500 degrees C. The role of the impurities and the additives in the stabilization of corundum-type In2O3 is discussed.
Epifani
Mauro
M
Istituto per la Microelettronica e i Microsistemi, IMM-CNR, Sezione di Lecce, Via Arnesano, 73100 Lecce, Italy.
Siciliano
Pietro
P
Gurlo
Alexander
A
Barsan
Nicolae
N
Weimar
Udo
U