Produced by templated sol-gel method mesoporous nanosized titania powders modified with 3d-metal ions have been characterized by XPS and TPR methods. Metal species formed on the titania surface were investigated. The TPR analysis showed that reduction behaviors of the M n+ /TiO 2 were strongly affected by the synthesis method, preparation conditions and interactions between the dopant metal and TiO 2 matrix. It was found that Ti-O-M-bonds formation during sol-gel synthesis with applying

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... triblock copolymer Pluronic P123 as organic template and calcination at 550 °C promoted high-dispersion states of doped 5 % metals. The XPS and TPR showing dopants exist as divalent and trivalent ions for M n+ /TiO 2 , where M=Co, Ni, Mn, and as monovalent and divalent ions in the case of Cu/TiO 2 .