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Title: Study of phase transformation and microstructure of alcohol washed titania nanoparticles for thermal stability

Nanostructured titania have been successfully synthesized by hydrolysis of alkoxide at calcination temperatures 500 °C, 600 °C and 700 °C. As the calcination temperature increases, alcohol washed samples show lesser rutile content as compared to water washed samples. Morphology and Particle sizes was determined by field emission scanning electron microscopy (FESEM), while thermogravimetric-differential scanning calorimetry (TG-DSC) was used to determine thermal stability. Alcohol washed samples undergo 30% weight loss whereas 16% in water washed samples was observed. The mean particle sizes were found to be increase from 37 nm to 100.9 nm and 35.3 nm to 55.2 nm for water and alcohol washed samples respectively. Hydrolysis of alkoxide was shown to be an effective means to prepare thermally stable titania by using alcohol washed samples as a precursor.
Authors:
; ; ;  [1]
  1. School of Physics and Materials Science, Thapar University, Patiala-147 004, Punjab (India)
Publication Date:
OSTI Identifier:
22488853
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALCOHOLS; CALCINATION; CALORIMETRY; COMPARATIVE EVALUATIONS; FIELD EMISSION; HYDROLYSIS; MICROSTRUCTURE; MORPHOLOGY; NANOPARTICLES; NANOSTRUCTURES; PARTICLE SIZE; PHASE STABILITY; PHASE TRANSFORMATIONS; RUTILE; SCANNING ELECTRON MICROSCOPY; THERMAL GRAVIMETRIC ANALYSIS; TITANIUM OXIDES; WATER