dc.contributor.author | Polychronopoulou, Kyriaki | en |
dc.contributor.author | Efstathiou, Angelos M. | en |
dc.creator | Polychronopoulou, Kyriaki | en |
dc.creator | Efstathiou, Angelos M. | en |
dc.date.accessioned | 2019-11-21T06:22:26Z | |
dc.date.available | 2019-11-21T06:22:26Z | |
dc.date.issued | 2006 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/56048 | |
dc.description.abstract | The aim of this work was to probe the back-spillover of labile O, OH and H species during steam reforming of phenol towards H2 production in the 773-1028 K range over Rh supported on MgO and Mg-Ce-Zr-O mixed-metal oxides. This was made possible through steady state isotopic transient kinetic analysis (SSITKA) and other transient isotopic experiments (use of D2O and 18O2) combined with temperature-programmed desorption ones. The size of the active pool of H-containing intermediate species (H and/or OH) present in the H-path of reaction as a function of reaction T was measured over the 0.1 wt% Rh/50Mg-25Ce-25Zr-O catalyst by SSITKA experiments. It was found that the size of this pool decreases by 18% in the 773-928 K range (θ = 68.9-56.3), whereas a significant decrease (by a factor of 10) was observed between 928 and 1028 K. These results demonstrate that most of the active H and OH species reside on the support and metal-support interface. Two kinds of H-containing intermediate species are likely to participate in the H-path of reaction. An inverse D kinetic isotopic effect was measured for the H2 formation in the phenol steam reforming reaction in the 773-1028 K range. © 2006 Elsevier B.V. All rights reserved. | en |
dc.source | Catalysis Today | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-33746591700&doi=10.1016%2fj.cattod.2006.05.079&partnerID=40&md5=86bf213ee5f1200d03ab094f9b5b308e | |
dc.subject | Hydrogen | en |
dc.subject | Oxides | en |
dc.subject | Phenols | en |
dc.subject | Catalyst activity | en |
dc.subject | Rhodium | en |
dc.subject | Cerium alloys | en |
dc.subject | Hydrogen production | en |
dc.subject | Phenol steam reforming | en |
dc.subject | Reforming reactions | en |
dc.subject | SSITKA | en |
dc.subject | Kinetic isotope effect | en |
dc.subject | OH spillover | en |
dc.subject | Oxygen spillover | en |
dc.title | Spillover of labile OH, H, and O species in the H2 production by steam reforming of phenol over supported-Rh catalysts | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1016/j.cattod.2006.05.079 | |
dc.description.volume | 116 | |
dc.description.issue | 3 | |
dc.description.startingpage | 341 | |
dc.description.endingpage | 347 | |
dc.author.faculty | 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Χημείας / Department of Chemistry | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :34</p> | en |
dc.source.abbreviation | Catal Today | en |
dc.contributor.orcid | Efstathiou, Angelos M. [0000-0001-8393-8800] | |
dc.contributor.orcid | Polychronopoulou, Kyriaki [0000-0002-0723-9941] | |
dc.gnosis.orcid | 0000-0001-8393-8800 | |
dc.gnosis.orcid | 0000-0002-0723-9941 | |