Abstract
Titanium dioxide nanoparticles were obtained by using poly-acrylic acid gel in a two-step synthesis method at room temperature using titanium (IV) chloride as titanium source. The formed nanoparticles were studied by different characterization techniques, showing that different proportion of anatase/rutile phase can be obtained by adjusting the amount of acrylic acid in the initial gel. Aluminum storage performance of the synthesized materials was also investigated, obtaining higher capacity density results at higher rutile ratio (75.1 mAh g–1).