TiO2 , surface preparation

Figure 5 SEM images of the surface of a mesoporous film prepared from the hydrothermal TiO2 colloid.

Methanol decomposition has also been studied on sputtered, Oil -, and 114 -faceted crystal faces of TiO2(001). Chemisorbed methanol formed surface methoxide species about half of the methoxides formed recombined with surface hydroxyl species to form methanol at 365 K. The remainder of the methoxide species decomposed at higher temperatures to form some combination of methanol, methane, dimethyl ether, formaldehyde, and CO depending on the preparation of the crystal surface [74]. 

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