Fig. 2From: Sol-gel Synthesis, Photo- and Electrocatalytic Properties of Mesoporous TiO2 Modified with Transition Metal IonsXRD patterns of Cu/TiO2 (1), Mn/TiO2 (2), Ni/TiO2 (3), and Co/TiO2 (4) powders doped with 5% of metal ions calcined at 450 (a) and 650 °C (b) Back to article page