Abstract
Titania spheres were synthesized using binary ionic liquids to examine the electrocatalytic activity in acid solution. The morphology of particles was significantly different with the composition of ionic liquids. Among the binary ionic liquids, four set of mixtures led to the formation of sphere with various sizes. The morphology and structure of particles were characterized by XRD, physisoption and SEM analysis. All samples possessed an anatase phase after calcinations at . The structural properties of the samples were varied significantly with the morphology. In cyclic voltammograms, the morphology of spheres affected the electrocatalytic activity in water electrolysis. Among the samples, [Omim][]+[Hmim][] was the most effective ionic liquid to synthesize sphere with optimum morphology showing the highest electocatalytic performance.
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