1 Ocak 2012 Dergi makalesi Açık Erişim

Ates, Ayten; Hardacre, Christopher; Goguet, Alexandre

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        "affiliation": "Cumhuriyet Univ, Fac Engn, Dept Chem Engn, TR-58140 Sivas, Turkey", 
        "name": "Ates, Ayten"
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      {
        "affiliation": "Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland", 
        "name": "Hardacre, Christopher"
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      {
        "affiliation": "Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland", 
        "name": "Goguet, Alexandre"
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    "description": "A series of iron containing zeolites with varying Si/Al ratios (11.5-140) and low iron content (similar to 0.9 wt.% Fe) have been synthesised by solid-state ion exchange with commercially available zeolites and tested, for the first time, in the oxidative dehydrogenation of propane (ODHP) with N2O. The samples were characterised by XRD, N-2-Adsorption, NH3-TPD and DR-UV-vis spectroscopy. The acidity of the Fe-ZSM-5 can be controlled by high temperature and steam treatments and Si/Al ratio. The selectivity and yield of propene were found to be the highest over Fe-ZSM-5 with low Al contents and reduced acidity. The initial propene yield over Fe-ZSM-5 was significantly higher than that of Fe-SiO2 since the presence of weak and/or medium acid sites together with oligonuclear iron species and iron oxides on the ZSM-5 are found to enhance the N2O activation. The coking of Fe-ZSM-5 catalysts could also be controlled by reduction of the surface acidity of ZSM-5 and by the use of O-2 in addition to N2O as the oxidant. Fe-ZSM-5 zeolites prepared with solid-state method have been shown to have comparable activity and better stability towards coking compared with Fe-ZSM-5 zeolites prepared by liquid ion exchange and hydrothermal synthesis methods. (C) 2012 Elsevier B.V. All rights reserved.", 
    "doi": "10.1016/j.apcata.2012.06.038", 
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      "pages": "30-41", 
      "title": "APPLIED CATALYSIS A-GENERAL", 
      "volume": "441"
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    "title": "Oxidative dehydrogenation of propane with N2O over Fe-ZSM-5 and Fe-SiO2: Influence of the iron species and acid sites"
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