Co-loading Pd and CeO2 on Silicalite-1 as High-performance Catalyst for Methane Dry Reforming Reaction
Jing Xu, Rui Zhang, Ke Wang, Xiao Wang, Shuyan Song, Hongjie Zhang
Co-loading Pd and CeO2 on Silicalite-1 as High-performance Catalyst for Methane Dry Reforming Reaction
The methane dry reforming (DRM) reaction can convert CO2 and CH4, both of which contribute to climate change, into syngas, which holds great significance in mitigating specific environmental issues stemming from the greenhouse effect. Nonetheless, the challenges that persist include the substantial energy consumption and the catalyst’s susceptibility to deactivation, both of which necessitate solutions. Herein, we developed a catalyst, PdCe/S1, featuring small-sized Pd species and CeO2 stabilized on pure silicon zeolite (silicalite-1), which is employed in the DRM reaction. It can achieve 97% CH4 conversion and 98% CO2 conversion at 750 °C, surpassing binary Pd/CeO2 and Pd/S1 catalysts. The small size of CeO2 stabilized by silicalite-1 promotes oxygen defects formation and enhances the CO2 adsorption capacity. The introduction of silicalite-1 further enhances the interaction between Pd and CeO2, boosting DRM performance.
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