Research Article

Comparison of Urea and Citric Acid Complexing Agents and Annealing Temperature Effect on the Structural Properties of - and -Alumina Nanoparticles Synthesized by Sol-Gel Method

Figure 2

XRD patterns of Al2O3 nanopowder prepared with complexing agent. (A) Citric acid and (B) urea calcined at temperatures of (a) 750°C, (b) 1000°C, and (c) 1250°C.
791641.fig.002a
(a)   750°C
791641.fig.002b
(b) 1000°C
791641.fig.002c
(c) 1250°C