Megía, Pedro J.Morales, AnabelVizcaíno, Arturo J.Calles, José A.Carrero, Alicia2023-10-132023-10-132023Pedro J. Megía, Anabel Morales, Arturo J. Vizcaíno, José A. Calles, Alicia Carrero, Oxidative steam reforming of acetic acid on Ni catalysts: Influence of the La promotion on mesostructured supports, International Journal of Hydrogen Energy, 2023, , ISSN 0360-3199, https://doi.org/10.1016/j.ijhydene.2023.06.2830360-3199https://hdl.handle.net/10115/24864The authors gratefully acknowledge the financial support from the Community of Madrid (project S2018/EMT-4344), and the Spanish Ministry for Science and Innovation (project PID2020-117273RB-I00).In this work, the support effect and the La2O3 promotion of Ni-based catalysts on the oxidative steam reforming of acetic acid as bio-oil model compound has been studied. Ni/ SBA-15 showed the worst catalytic performance with an acetic acid conversion dropping below 30% at 500 C ascribed to active phase oxidation. In contrast, Ni supported over mesoporous CeO2 (CeO2-m) reached better catalytic performance and lower coke formation due to the higher Ni dispersion and oxygen mobility of the support. On the other hand, La2O3 promotion to SBA-15 and CeO2-m led to even higher Ni dispersion and prevented sintering during the reforming reaction. This effect resulted in an improvement in the catalytic performance for both promoted samples. As a consequence of low Ni crystallite size and high oxygen mobility, Ni/La2O3eCeO2-m reached almost complete conversion (~96%), the highest hydrogen yield (~53%) maintained for 5 h with the lowest coke formation...engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Renewable hydrogenMesoporous ceriaLanthanumSBA-15NanocastingBio-oilinfo:eu-repo/semantics/article10.1016/j.ijhydene.2023.06.283info:eu-repo/semantics/openAccess