Hydrodeoxygenation of benzyl alcohol on transition-metal-containing mixed oxides catalysts derived from layered double hydroxide precursors

Autor: Claudiu Rizescu, Patrick Da Costa, Adriana Urdă, Ionel Popescu, Chao Sun, Ioan-Cezar Marcu
Přispěvatelé: University of Bucharest (UniBuc), Combustion, Energies Propres et Turbulence (IJLRDA-CEPT), Institut Jean Le Rond d'Alembert (DALEMBERT), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Catalysis Today
Catalysis Today, Elsevier, 2021, 366, pp.235-244. ⟨10.1016/j.cattod.2020.04.055⟩
ISSN: 0920-5861
DOI: 10.1016/j.cattod.2020.04.055⟩
Popis: International audience; M-MgAlO mixed oxide catalysts were prepared by controlled thermal decomposition of layered double hydroxides (LDH) precursors and were tested in the hydrodeoxygenation of benzyl alcohol. LDH with Mg/Al = 3 and 10 at. % M with respect to cations (M = Mn, Fe, Co, Ni, Cu and Zn) were obtained by coprecipitation. A second series of copper-containing catalysts with copper content from 5 to 20 at. % was also prepared. The solids were characterized by X-ray diffraction, N2 adsorption/desorption, temperature-programmed reduction in H2 atmosphere, temperature-programmed desorption of CO2. The influence of the transition metal and, for the copper-containing samples, of the copper loading, reaction temperature, reaction time, amount of catalyst and reduction pre-treatment on the catalytic performance were investigated. With 97% alcohol conversion and 96% selectivity to toluene, Cu15MgAlO is the best hydrodeoxygenation catalyst. It was also tested in the hydrodeoxygenation of 1-heptanol.
Databáze: OpenAIRE
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