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Conversion of succinic acid over Ni and Co catalysts

dc.contributor.authorRojas M.
dc.contributor.authorZarate X.
dc.contributor.authorCanales R.I.
dc.contributor.authorDongil A.B.
dc.contributor.authorPazo C.
dc.contributor.authorSaavedra-Torres M.
dc.contributor.authorEscalona N.
dc.date.accessioned2020-09-02T22:27:29Z
dc.date.available2020-09-02T22:27:29Z
dc.date.issued2020
dc.identifier10.1016/j.cattod.2020.04.067
dc.identifier.issn09205861
dc.identifier.urihttps://hdl.handle.net/20.500.12728/6082
dc.descriptionLiquid-phase hydrogenation of succinic acid (SA) over supported Ni and Co catalysts was investigated at 200 °C and 6 MPa of H2. Reduced and passivated catalysts with the same surface metal density (2.5 atoms of metal per nm2 of support) were prepared by incipient wetness impregnation. The catalysts were characterized by X-ray diffraction (XRD), N2 adsorption, X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR), CO-chemisorption, and temperature-programmed desorption of NH3 (TPD-NH3). The Ni and Co catalysts supported over SiO2 showed different product distribution, due to the adsorption of the SA over the surface of catalysts, determined by DFT calculations. The Co/SiO2, Co/SiO2-Al2O3, and Co/Al2O3 catalysts showed different product distribution, which was correlated with total acidity from TPD-NH3 results. In general, the Co catalysts promoted the hydrogenation process; however, the highest total acidity showed by Co/Al2O3 also promoted the dehydration process. Finally, the initial rate follows the trend according to the dispersion determined by CO-chemisorption. © 2020 Elsevier B.V.
dc.language.isoen
dc.publisherElsevier B.V.
dc.subjectBiomass
dc.subjectCatalytic hydrogenation
dc.subjectDFT-calculations
dc.subjectSuccinic acid
dc.subjectAmmonia
dc.subjectChemisorption
dc.subjectCobalt
dc.subjectDehydration
dc.subjectHydrogenation
dc.subjectNickel
dc.subjectSilica
dc.subjectSilicon
dc.subjectTemperature programmed desorption
dc.subjectX ray photoelectron spectroscopy
dc.subjectCO chemisorption
dc.subjectDehydration process
dc.subjectHydrogenation process
dc.subjectIncipientwetness impregnation
dc.subjectLiquid-phase hydrogenation
dc.subjectNi and co catalysts
dc.subjectProduct distributions
dc.subjectTemperature-programmed reduction
dc.subjectCatalyst supports
dc.titleConversion of succinic acid over Ni and Co catalysts
dc.typeArticle


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