Oriented, Crystalline Anatase TiO2 Nanorods on Transparent Conducting Electrodes Dong-Dong Qin,† Ying-Pu Bi,‡ Xin-Jian Feng, Wei Wang, Greg D. Barber, Ting Wang,† Yu-Min Song,† Xiao-Quan Lu,† and Thomas E. Mallouk* †Key Lab of Bioelectrochemistry and Environmental Analysis of Gansu, College of Chemistry and Chemical Engineering, The Northwest Normal University, Lanzhou, Gansu 730070, People’s Republic of China Department of Chemistry and Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania 16802, United States ‡National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Acadamy of Sciences, Lanzhou, Gansu 730000, People’s Republic of China Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Acadamy of Sciences, Suzhou, Jiangsu 215123, People’s Republic of China