The methylcyclohexane-toluene-hydrogen (MTH) system is considered as one of the potential solutions for the successful realization of hydrogen economy. As the dehydrogenation reaction of methylcyclohexane is highly endothermic and occurs at relatively high temperatures and low pressures, the success of the hydrogen economy based on the MTH system requires an active, highly selective, and stable catalyst which can lower the reaction temperature and increase the rate of the reaction at practical pressure applications. A suitable catalyst that is highly active, selective, and stable and that may be effectively applied in the dehydrogenation of methylcyclohexane is therefore the requirement. In the present study, combining the advantages of g-Al₂O₃ phase and mesoporous structure (high surface area), various mesoporous alumina supports using different preparation methods are synthesized and well characterized. The support materials are loaded with 1.0wt% Pt metal and the resulting dehydrogenation catalysts are tested to observe their effectiveness towards the dehydrogenation reaction.