Title : Nickel loaded on fibrous silica-modified ZnO (NSZF) as efficient dry reforming of methane catalyst for syngas production
Abstract:
Catalysts with high activity and stability are essential for efficient syngas production via the dry reforming of methane (DRM). This study presents a ZnO-modified silica fibrous framework (SZF) as a novel co-support for nickel catalysts. The catalysts, synthesized via microemulsion and impregnation methods, featured a core-fibrous shell structure characterized by XRD, TEM, BET, and other techniques. The incorporation of ZnO improved hydrogen selectivity and catalytic properties. The NSZF-10 catalyst (10 wt.% Ni) achieved CH4 and CO2 conversions of 82% and 74%, respectively, at 750 °C over 40 hours, demonstrating strong metal-support interactions and excellent resistance to carbon deposition. The fibrous silica shell prevented Ni nanoparticle migration, ensuring long-term stability. These findings highlight the potential of ZnO-modified SZF catalysts for durable and efficient DRM applications, with promise for industrial-scale syngas production.
