@article{scholars7905, year = {2016}, journal = {Journal of Nano Research}, publisher = {Trans Tech Publications Ltd}, pages = {74--86}, note = {cited By 5}, volume = {41}, doi = {10.4028/www.scientific.net/JNanoR.41.74}, title = {Effect of annealing temperature on phase transition of nano-alumina synthesized by auto-combustion route}, author = {Adil, M. and Zaid, H. M. and Chuan, L. K. and Latiff, N. R. A.}, issn = {16625250}, abstract = {Nanocrystalline Al2O3 powder has been successfully synthesized by a simple and fast sol-gel auto-combustion method. The transformation of crystalline phases of as-synthesized nano powders was investigated through X-ray diffraction in terms of their crystallinity and crystallite size. Subsequently, a detailed transmission electron microscopy (TEM) investigation, including specific area electron diffraction (SAED) analysis revealed the crystallographic alterations and morphological information even at lattice scale which co-include the XRD analysis. The results obtained allow to explain the evolution of an amorphous state into different crystalline phases with increased calcining temperature; and their relation to particle size. The particle size is found to be closely related to phase transition of Al2O3 from {\^I}3 {\^a}?? {\^I}? {\^a}?? {\^I}? {\^a}?? {\^I}? {\^a}?? {\^I}{$\pm$}. The existence of distinctive bonds and band energy were studied by employing Fourier-transform infrared spectroscopy (FTIR) and UV-visible spectroscopy, respectively. On the other hand, thermo gravimetric analysis (TGA) had also been performed to confirm the phase purity of nano powder. {\^A}{\copyright} 2016 Trans Tech Publications, Switzerland.}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971012264&doi=10.4028\%2fwww.scientific.net\%2fJNanoR.41.74&partnerID=40&md5=ffbbcce953b9da6bb672ca4f8fa8cb35}, keywords = {Alumina; Aluminum; Combustion; Crystalline materials; Crystallite size; Gravimetric analysis; High resolution transmission electron microscopy; Morphology; Nanocrystals; Particle size; Phase transitions; Sol-gel process; Sol-gels; Thermogravimetric analysis; Transmission electron microscopy; Ultraviolet visible spectroscopy; X ray diffraction; X ray powder diffraction, Calcining temperature; Effect of annealing; Morphological information; Nano-alumina; Nanocrystalline Al; Sol-gel auto-combustion; Structural characterization; UV visible spectroscopy, Fourier transform infrared spectroscopy} }