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Article Dans Une Revue International Journal of Hydrogen Energy Année : 2023

New performing hydroxyapatite-based catalysts in dry-reforming of methane

Résumé

Dry reforming of methane (DRM) is a promising process for the production of synthetic gas from carbon dioxide and methane. However, the design of a performing catalyst for this reaction is still challenging since catalyst deactivation usually takes place, principally by thermal sintering at high temperatures (700–950 °C) and by carbon deposition. In this work, calcium hydroxyapatite (HAP) and HAP-doped magnesium (Mg_HAP) supported nickel catalysts were synthesized by wet precipitation method, characterized by various physico-chemical and thermal techniques, and evaluated in DRM reaction. Outstanding catalytic performance in DRM could be obtained with Ni/ HAP and Ni/Mg_HAP catalysts, thanks to a tunable acidity-basicity of these supports, a strong metal-support interaction, and a good thermal stability of nickel nanoparticles. H2 and CO were the main products, with stable selectivity up to 85 ∓ 3%, while H2O and solid carbon were byproducts with 5–10% of selectivity.
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Dates et versions

hal-04094935 , version 1 (11-05-2023)

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Thanh Son Phan, Doan Pham Minh. New performing hydroxyapatite-based catalysts in dry-reforming of methane. International Journal of Hydrogen Energy, 2023, 48 (79), pp.30770-30790. ⟨10.1016/j.ijhydene.2023.04.273⟩. ⟨hal-04094935⟩
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