Seminar

Engineering Research Seminar Series 45, 2011: (ii) Catalytic Surface Reaction Mechanism of Methanol Reforming

Dr Estee Yong, Monash University Sunway Campus


Date: 2011-12-15
Time: 11:00 to 12:00
Venue: Classroom 9-3-03


Abstract

Cu0.5Zn0.5MnO4spinel-lattice catalyst has been studied for methanol decomposition by in situ infrared (IR) spectroscopy analysis and micro reactor study. Methoxy species is formed by dissociative adsorption of methanol which subsequently converts into formate species via step-wise dehydrogenation process. The activities of surface intermediates on reduced CuO, ZnO and Mn2O3catalysts are strongly affected by the ease of hydrogen desorption from the site, the strength of C-H bonding and the availability of oxygen. A synergism between Cu and MnO whereby the Cu serves as a sink for reverse hydrogen atoms spillover from MnO has been proposed. Similar synergism between Cu and ZnO has also been proposed. The micro reactor analysis correlates well with the IR results.

About the Speaker

Dr Estee completed BEng in the University of Sheffield and PhD in National University of Singapore. Her research interests are catalysis, fuel reforming, fuel cell and membrane reactor.