Effect of Synthesis Method of Ni/MgAlOx Catalyst in Dry Reforming of Methane: Initial Investigation

Tuong Huy Nguyen1, Thanh Hung Nguyen1, Dinh Hung Tran1, Minh Thang Le1,
1 Hanoi University of Science and Technology, Ha Noi, Vietnam

Main Article Content

Abstract

The dry reforming of methane (DRM) is a promising route for converting greenhouse gases (CH₄ and CO₂) into valuable syngas (H₂ and CO), offering both environmental and economic benefits. Among the DRM catalysts in literature, nickel-based on hydrotalcite-derived material Ni/MgAlOx was chosen due to its catalytic activity and resistance to carbon residue and metal site agglomeration. The study presents an initial investigation into the effect of different synthesis methods on the physicochemical properties and catalytic performance of Ni/MgAlOx catalysts in DRM. The catalysts, with fixed Ni/Mg/Al ratio of 1.0/2.0/1.5, were synthesized using two different methods: a) co-precipitation with hydrothermal crystallization and b) sol-gel, to study how the differences in synthesis route can affect the catalytic properties and performance of each catalyst. Characterization techniques, including X-ray diffraction (XRD), temperature-programmed reduction (TPR), and scanning electron microscopy (SEM) were employed to analyze the catalysts. The results reveal that the synthesis method significantly impacts the Ni dispersion, metal-support interaction, and stability of the catalysts. Catalysts prepared via co-precipitation exhibited superior activity and stability, attributed to their enhanced Ni dispersion and stronger metal-support interaction. This work provides foundational insights into optimizing Ni/MgAlOx catalysts for DRM, highlighting the critical role of synthesis methods in tailoring catalytic performance.

Article Details

References

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