The study conducted by researchers from Morocco and Italy focused on utilizing vermiculite as a support material for nickel catalysts in syngas production processes. By subjecting vermiculite to acid or base treatment, the researchers prepared Ni catalysts through impregnation. Various characterization techniques such as X-ray diffraction, SEM–EDS, FTIR, and temperature-programmed reduction were employed, along with TG-TD analyses to evaluate carbon deposits on catalysts. The acid-treated vermiculite-supported nickel catalysts exhibited superior performance in the dry reforming of methane, displaying high methane conversion and hydrogen yield due to improved reduction of nickel species and reduced carbon deposition. Furthermore, these catalysts were tested in ethanol steam reforming, with the acid-treated ones demonstrating the best performance under different conditions. The research emphasizes the significance of catalyst support material treatment in enhancing hydrogen production efficiency and underscores the role of thorough characterization in optimizing catalyst performance.