Structural and crystal growth kinetics studies for SnO2 nanoparticles prepared via hydrothermal route. (2nd December 2017)

• Record Type: Journal Article
• Authors: Abdel-latief, A. Y.; Abdel-Rahim, M. A.; Shaalan, N. M.; Hamad, D.
• Is Part Of: Phase transitions. Volume 90:Number 12(2017)
• Page Start: 1214
• Page End: 1228
• Publication Date: 2017-12-02
• Subjects: Hydrothermal method -- SnO2 nanoparticles -- XRD -- SEM -- TGA/DTA -- crystal growth kinetics -- iso-conversional methods; Phase transformations (Statistical physics) -- Periodicals; 530.47405
• DOI: 10.1080/01411594.2017.1337903
• Languages: English
• ISSNs: 0141-1594

Abstract

ABSTRACT: Tin oxide nanoparticles with crystallite size (1.9–3 nm) were synthesized via hydrothermal route. The role of autoclave temperature ( TA ) on the structural parameters and surface morphology of the as-synthesized SnO2 nanoparticles (NPs) was followed using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The thermal behavior of the as-synthesized SnO2 NPs was carried out using thermogravimetric and differential thermal analysis (TGA/DTA) techniques under non-isothermal conditions. The effect of TA on the activation energy of crystal growth ( E c ) and the Avrami exponent ( n ) of SnO2 NPs were determined by different methods. The reaction mechanism controlling the growth process was discussed in terms of the results obtained using different iso-conversional methods to determine the local E c (α) and n (α).