dc.contributor.author | Ates, Ayten | |
dc.contributor.author | Reitzmann, Andreas | |
dc.contributor.author | Waters, Gerrit | |
dc.date.accessioned | 2019-07-27T12:10:23Z | |
dc.date.accessioned | 2019-07-28T10:03:42Z | |
dc.date.available | 2019-07-27T12:10:23Z | |
dc.date.available | 2019-07-28T10:03:42Z | |
dc.date.issued | 2012 | |
dc.identifier.issn | 0926-3373 | |
dc.identifier.uri | https://dx.doi.org/10.1016/j.apcatb.2012.03.004 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12418/9124 | |
dc.description | WOS: 000304691700039 | en_US |
dc.description.abstract | Various ZSM-5 zeolites with iron contents ranging from of 0.86 to 4.98 and Si/Al ratios of 11.5-140 were prepared by solid-state ion exchange with FeCl2. The catalysts were characterised by XRD, H-2-TPR and NH3-TPD. The formation and stability of surface oxygen over these zeolites were investigated with a transient multipulse technique combined with subsequent temperature-programmed desorption (TPD). Higher iron contents enhance the formation of surface oxygen. However, when a critical iron content is reached, larger iron oxide clusters and particles are formed and these larger clusters do not contribute significantly to surface oxygen formation. Moreover, the amount of desorbed oxygen is more than that formed from N2O due to the additional desorption of oxygen present in the lattice of such oxide clusters. TPD studies indicate the presence of different surface oxygen species depends on both the zeolite iron content and Si/Al ratio. (C) 2012 Elsevier B.V. All rights reserved. | en_US |
dc.description.sponsorship | DAAD; TUBITAK (Turkey); DFG (Germany) | en_US |
dc.description.sponsorship | Ayten Ates would like to thank DAAD - International Seminars, The Scientific & TUBITAK (Turkey) - DFG (Germany) for financial supports. The authors are very grateful to Prof. Dr. G.I. Panov, Dr. E. Starokon for providing the possibility to determine the a-oxygen content of several samples and to Dr. L. Pirutko for doing the elemental analysis of all samples. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | ELSEVIER SCIENCE BV | en_US |
dc.relation.isversionof | 10.1016/j.apcatb.2012.03.004 | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Nitrous oxide decomposition | en_US |
dc.subject | Fe-ZSM-5 | en_US |
dc.subject | Multipulse method | en_US |
dc.subject | Surface oxygen | en_US |
dc.title | Surface oxygen generated upon N2O activation on iron containing ZSM-5 type zeolites with different elemental composition | en_US |
dc.type | article | en_US |
dc.relation.journal | APPLIED CATALYSIS B-ENVIRONMENTAL | en_US |
dc.contributor.department | [Ates, Ayten] Cumhuriyet Univ, Fac Engn, Dept Chem Engn, TR-58140 Sivas, Turkey -- [Reitzmann, Andreas] Sud Chem AG Res & Dev Catalyt Technol, D-83052 Bruckmuhl, Germany -- [Waters, Gerrit] Univ Karlsruhe, Inst Chem Proc Engn, D-76131 Karlsruhe, Germany | en_US |
dc.identifier.volume | 119 | en_US |
dc.identifier.endpage | 339 | en_US |
dc.identifier.startpage | 329 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |