In-situ fabrication and characterisation of nanostructured Mn3O4 powders for electronic and electrochemical applications

Authors

Konstantin Konstantinov, University of WollongongFollow
Y Tournayre, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow

RIS ID

21887

Publication Details

Konstantinov, KK, Tournayre, Y & Liu, HK (2007), In-situ fabrication and characterisation of nanostructured Mn3O4 powders for electronic and electrochemical applications, Materials Letters, 61(14-15), pp. 3189-3192.

Abstract

A spray pyrolysis approach has been used to obtain in-situ single-phase nanocrystalline Mn₃O₄powders with spherically shaped particles. Ethanol or water-based solutions were sprayed at temperatures in the range of 450 to 750^°C. Ethanol-based solutions led to carbon-contaminated powders at low temperatures and to particles with low porosity. Water-based solutions, however, are suitable for obtaining single-phase nanomaterials with a high specific surface area, up to 45 m²/g. The crystal size is less than 10 nm for spraying temperatures below 550^°C.