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Palladium catalysts supported on CeO 2, Ce 0.75 Zr 0.25 O 2 , ZrO 2, TiO 2 , Nb 2 O 5 , Al 2 O 3 were studied on the total oxidation of butyl carbitol. Several techniques were used to characterize the samples such as diffuse reflectance spectroscopy (DRS), temperature programmed reduction (TPR), cyclohexane dehydrogenation and CO temperature programmed desorption (TPD). DRS and TPR results revealed the presence of bulk PdO and PdO with strong interaction with the support. The catalytic tests showed the following order for decreasing activity: Pd/Ce 0.75 Zr 0.25 O 2 [ Pd/CeO 2 [ Pd/ TiO 2 [ Pd/Nb 2 O 5 [ Pd/Al 2 O 3 [ Pd/ZrO 2 . However, when the turnover frequency (TOF) was calculated, all the samples had similar values.

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