Operando XRD and XAS studies to elucidate the effect of support composition on the activity and stability of Ni-Pt based catalysts for CH4 S

This study aims to understand the effect of the support composition (Mg: Al ratio) on the activity and stability of the next generation of bimetallic Ni-Pt catalysts for steam reforming of methane. For this purpose, systematic operando XAS and XRD experiments under model reaction conditions will be conducted during temperature ramps and at steady-state conditions. The structural evolution of the active species will be monitored by XAS measurements at the Ni K and Pt L3 edges while the overall phase changes due to the interplay between active species and support will be identified by X-ray diffraction measurements at selected stages of the experiments.