Synthesis and properties of SnO prepared from ammoniacal and carbonate suspensions of tin(II) hydroxy compound under microwave radiation

Abstract

SnO powder was prepared by microwave treatment of ammoniacal and carbonate Sn6O4(OH)4 suspensions. It was shown that the type of the precipitant (aqueous ammonia and sodium carbonate) for Sn(II) hydroxy compound affects the surface properties of the resulting oxide. It is found that SnO powders prepared by homogeneous precipitation of tin(II) hydroxy compound with sodium carbonate, followed by the microwave treatment, have the smaller specific surface area (~0.4 m2 g–1) and contain agglomerates of the larger size (~50 µm) joint together into a “flower.”