Performance of Pd supported on mesoporous molecular sieves on methane combustion

Abstract

The performance of Pd-based catalysts supported on mesoporous molecular sieves with different pore arrangement (MCM-41 and MCM-48) was investigated for methane combustion. All molecular sieves showed to be thermally stable, evidencing the suitability of these materials as support for high temperature processes and motivated the efforts to exploit their use. Reaction data showed that silicate-based samples rendered more active catalysts than those prepared on aluminosilicate; activity was affected by monodimensional or three-dimensional pore arrangement. The use of molecular sieves in proton form led to an increase in the reaction rate in relation to the sodium form.