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Preparation of a monolith-supported Au/TiO 2 catalyst active for CO oxidation

Preparation of a monolith-supported Au/TiO 2 catalyst active for CO oxidation,10.1007/BF03215602,Gold Bulletin,François Moreau,Geoffrey C Bond,Ronald

Preparation of a monolith-supported Au/TiO 2 catalyst active for CO oxidation  
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The development of a method for making an adherent coating of Au/TiO2 on a cordierite monolith is described. The optimum method entails first forming a wash-coat of TiO2 by combining a colloidal dispersion of TiO2 with Degussa P-25 TiO2 that has been washed, dried and crushed. Subsequent deposition of gold from HAuCl4 solution at pH 9 resulted in a catalyst that was less active for the oxidation of carbon monoxide than a similar preparation using only P-25, but reproducible values of T50 of about 250 K were obtained.
Journal: Gold Bulletin - GOLD BULL , vol. 40, no. 4, pp. 291-294, 2007
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