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Title: Sol-gel synthesis and characterization of SrFeCo0.5O3.25-δ powder
Authors: Jin, W.
Abothu, I.R.
Wang, R.
Chung, T.-S. 
Issue Date: 30-Oct-2002
Source: Jin, W.,Abothu, I.R.,Wang, R.,Chung, T.-S. (2002-10-30). Sol-gel synthesis and characterization of SrFeCo0.5O3.25-δ powder. Industrial and Engineering Chemistry Research 41 (22) : 5432-5435. ScholarBank@NUS Repository.
Abstract: SrFeCo0.5O3.25-δ powder was synthesized by a sol-gel processing from metal alkoxides. The powder synthesized was characterized by X-ray diffraction, scanning electron microscopy (SEM), BET surface area measurements, particle size analysis, and thermogravimetric analysis (TGA). The synthesized oxide consisted of three phases: a main perovskite phase with an amount of a perovskite-related layered phase and a trace spinel phase. The powder calcined at 850°C in air for 4 h exhibited a uniform rod-shaped morphology with a particle size of about 300 nm and a surface area of 2.1 m2/g. The average agglomerate size was about 3 μm. TGA data showed that the powder was of larger oxygen nonstoichiometry at high temperature in air. Experimental results demonstrate that sol-gel processing is a very effective technique for synthesizing submicron SrFeCo0.5O3.25-δ powders.
Source Title: Industrial and Engineering Chemistry Research
ISSN: 08885885
Appears in Collections:Staff Publications

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