Fabrication and application of mesoporous TiO2 film coated on Al wire by sol-gel method with EISA

Abstract Mesoporous TiO 2 film on Al wire was fabricated by sol-gel method with evaporation induced self assembly (EISA) process using F127 as templating agent in the mixed solution of ethanol and Tetra-n-butyl Titanate. The Ni/TiO 2 film catalyst supported on Al wire was prepared by impregnation and the catalytic performance on methanation was carried out in a titanium alloy micro-reactor tube. It was shown that anatase mesoporous TiO 2 film was prepared in this conditions (1 g F127,calcined at 400 °C and aged for 24 h), which has specific surface area of 127 m 2 g −1 and narrow pore size distribution of 5.3 nm. Low calcined temperature (300 °C) cannot transfer film to anatase and decompose F127 completely. Ni/TiO 2 film on Al wire catalyst was proved to be active in CO methanation reaction. And the CO conversion reaches 99% and CH 4 selectivity close is to 80% when the reaction temperature is higher 360 °C.