Mechanism of Methanol Adsorption-Reaction over Gallium Oxides Through Molecular Spectroscopy and In Situ Analysis

SEBASTIAN COLLINS ; MIGUEL A. BALTANÁS; ADRIÁN BONIVARDI; LAURA E. BRIAND; GRACIELA M. VALLE, SILVANA R. MATKOVIC, LUIS A. GAMBARO, LAURA E. BRIAND

Toledo

Congreso; Second International Congress on Operando Spectroscopy; 2006

Consejo Superior de Investigaciones Científicas de España y la Universidad de Educación a Distancia.

The chemisorption of probe molecules is a well known method to characterize the surface of catalytic materials. Recently, the chemisorption of methanol was proved as a reliable method to determine the nature and number  of the surface active sites of oxide catalysts.In this context,  TPSR-MS and TPSR-IR experiments were performed  in order to investigate the surface intermediates of the chemisorption and surface reaction of methanol over over bulk gallium oxides (alpha, beta and gamma polymorphs).