Author/Authors :
LIU, Xiang University of Hong Kong - Department of Physics, China , SUN, Qian University of Hong Kong - Department of Physics, China , LIU, Fangzhou University of Hong Kong - Department of Physics, China , DJURISIC, Aleksandra B. University of Hong Kong - Department of Physics, China , NG, Alan Man Ching South University of Science and Technology of China - Department of Physics, China , XIE, Maohai University of Hong Kong - Department of Physics, China , WOOD, Tom City University of Hong Kong - Department of Physics and Materials Science, China , ZAPIEN, Juan Antonio City University of Hong Kong - Department of Physics and Materials Science, China , LIAO, Changzhong University of Hong Kong - Department of Civil Engineering, China , SHIH, Kaimin University of Hong Kong - Department of Civil Engineering, China
Abstract :
We investigated the properties of 7 different titanium dioxide nanostructures with different crystal structures (3 anatase, 2 rutile, and 2 mixed anatase{rutile phase). Nanoparticle samples and mesoporous sphere samples were investigated. Even for the same crystal structure, significant variations in performance were observed for anatase titania samples, while 2 rutile samples exhibited similar performance inferior to anatase-based anodes. Mixed-phase samples also exhibited lower specific capacity compared to the best performing anatase samples, and in this case a significant difference in performance was observed between nanoparticles and mesoporous spheres.
