000095543 001__ 95543
000095543 005__ 20210902121730.0
000095543 0247_ $$2doi$$a10.3390/catal10070790
000095543 0248_ $$2sideral$$a119598
000095543 037__ $$aART-2020-119598
000095543 041__ $$aeng
000095543 100__ $$aCharisiou, N.D.
000095543 245__ $$aThe effect of noble metal (M: Ir, Pt, Pd) on M/Ce2 O3-¿-Al2 O3 catalysts for hydrogen production via the steam reforming of glycerol
000095543 260__ $$c2020
000095543 5060_ $$aAccess copy available to the general public$$fUnrestricted
000095543 5203_ $$aA promising route for the energetic valorisation of the main by-product of the biodiesel industry is the steam reforming of glycerol, as it can theoretically produce seven moles of H2 for every mole of C3 H8 O3. In the work presented herein, CeO2 –Al2 O3 was used as supporting material for Ir, Pd and Pt catalysts, which were prepared using the incipient wetness impregnation technique and characterized by employing N2 adsorption–desorption, X-Ray Diffraction (XRD), Temperature Programmed Reduction (TPR), Temperature Programmed Desorption (TPD), X-ray Photoelectron Spectroscopy (XPS) and Transmission Electron Microscopy (TEM). The catalytic experiments aimed at identifying the effect of temperature on the total conversion of glycerol, on the conversion of glycerol to gaseous products, the selectivity towards the gaseous products (H2, CO2, CO, CH4) and the determination of the H2 /CO and CO/CO2 molar ratios. The main liquid effluents produced during the reaction were quantified. The results revealed that the Pt/CeAl catalyst was more selective towards H2, which can be related to its increased number of Brønsted acid sites, which improved the hydrogenolysis and dehydrogenation–dehydration of condensable intermediates. The time-on-stream experiments, undertaken at low Water Glycerol Feed Ratios (WGFR), showed gradual deactivation for all catalysts. This is likely due to the dehydration reaction, which leads to the formation of unsaturated hydrocarbon species and eventually to carbon deposition. The weak metal–support interaction shown for the Ir/CeAl catalyst also led to pronounced sintering of the metallic particles.
000095543 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000095543 590__ $$a4.146$$b2020
000095543 591__ $$aCHEMISTRY, PHYSICAL$$b67 / 162 = 0.414$$c2020$$dQ2$$eT2
000095543 592__ $$a0.8$$b2020
000095543 593__ $$aPhysical and Theoretical Chemistry$$c2020$$dQ2
000095543 593__ $$aCatalysis$$c2020$$dQ2
000095543 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000095543 700__ $$aSiakavelas, G.I.
000095543 700__ $$aPapageridis, K.N.
000095543 700__ $$aMotta, D.
000095543 700__ $$aDimitratos, N.
000095543 700__ $$0(orcid)0000-0002-6873-5244$$aSebastian, V.$$uUniversidad de Zaragoza
000095543 700__ $$aPolychronopoulou, K.
000095543 700__ $$aGoula, M.A.
000095543 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000095543 773__ $$g10, 7 (2020), 790 1-25$$pCatalysts$$tCATALYSTS$$x2073-4344
000095543 8564_ $$s7801361$$uhttps://zaguan.unizar.es/record/95543/files/texto_completo.pdf$$yVersión publicada
000095543 8564_ $$s487803$$uhttps://zaguan.unizar.es/record/95543/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000095543 909CO $$ooai:zaguan.unizar.es:95543$$particulos$$pdriver
000095543 951__ $$a2021-09-02-09:35:29
000095543 980__ $$aARTICLE