Decomposition of methanol on Pt-loaded ceria

Methanol was decomposed to carbon monoxide and hydrogen on supported precio us metals. Among the precious metals examined the performance of Pt was fou nd to be the best, and ceria was the best support. Pt/CeO2 decomposed metha nol completely at 230 degrees C with 99.2% and 94.6% of selectivities to H- 2 and CO, respectively TEM, ESCA, and XAFS analyses showed that Pt interact ed very strongly with ceria, indicating the possibility of the formation of Pt-O-Ce bond and the penetration of Pt into the bulk ceria. The reaction m echanism was discussed on the basis of the kinetic analysis. (C) 1999 Elsev ier Science B.V. All rights reserved.