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Browsing by Subject "Methane"

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    • Article  

      Degradable polymer networks and star polymers based on mixtures of two cleavable dimethacrylate crosslinkers: Synthesis, characterization, and degradation 

      Themistou, Efrosyni; Patrickios, Costas S. (2009)
      Mixtures of two cleavable dimethacrylate crosslinkers, the hydrolyzable di(methacryloyloxy-1-ethoxy)methane (DMOEM) and the thermolyzable 1,1-ethylenediol dimethacrylate (EDDMA), were used for the preparation of neat ...

    • Doctoral Thesis  Open Access

      Development of new catalysts for the utilization of natural gas towards synthesis gas and liquid fuels production : the contribution of transient isotopic techniques 

      Vasiliades, Michalis A. (Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2018-01-10)
      Η παρούσα Διδακτορική Διατριβή (περιέχονται χημικοί τύποι) διαπραγματεύεται την ανάπτυξη, χαρακτηρισμό και μελέτη καινοτόμων καταλυτικών συστημάτων που αφορούν δύο σημαντικές διεργασίες για αξιοποίηση του φυσικού αερίου ...

    • Article  

      Dry reforming of methane over 5 wt% Ni/Ce1-xPrxO2-δ catalysts: Performance and characterisation of active and inactive carbon by transient isotopic techniques 

      Vasiliades, Michalis A.; Makri, M. M.; Djinović, P.; Erjavec, B.; Pintar, A.; Efstathiou, Angelos M. (2016)
      The effects of Ce1-xPrxO2-δ support composition (x = 0.0–0.8) and reaction temperature (550–750 °C) on the catalytic activity and selectivity and important features of the mechanism of the dry reforming of methane (DRM) ...

    • Article  

      Effect of support composition on the origin and reactivity of carbon formed during dry reforming of methane over 5 wt% Ni/Ce1-xMxO2-δ (M = Zr4+, Pr3+) catalysts 

      Makri, M. M.; Vasiliades, Michalis A.; Petallidou, Klito C.; Efstathiou, Angelos M. (2016)
      Carbon dioxide reforming of methane to synthesis gas in the 550-750°C range over 5 wt% Ni/Ce1-xMxO2-δ (M = Zr4+, Pr3+) solids has been investigated with respect to the effects of support chemical composition and reaction ...

    • Article  

      Kinetics of methane oxidative coupling on zinc-doped titanium oxide 

      Efstathiou, Angelos M.; Boudouvas, D.; Vamvuka, Despina; Verykios, Xenophon E. (1992)
      A kinetic study of methane conversion to C2-hydrocarbons was conducted by cofeeding methane and oxygen at 1 bar total pressure over a series of zinc-doped TiO2 catalysts. The zinc dopant concentration was varied between 1 ...

    • Article  

      Origin and reactivity of active and inactive carbon formed during DRM over Ni/Ce0.38Zr0.62O2-δ studied by transient isotopic techniques 

      Vasiliades, Michalis A.; Djinović, P.; Davlyatova, L. F.; Pintar, A.; Efstathiou, Angelos M. (2016)
      The role of Ce0.38Zr0.62O2-δ redox support and that of reactants CH4 and CO2 in the carbon-path of dry reforming of methane (DRM) at 750°C over a 3wt% Ni/Ce0.38Zr0.62O2-δ catalyst were investigated. In particular, meticulously ...

    • Article  

      The Reaction of DABCO with 4-Chloro-5H-1,2,3-dithiazoles: Synthesis and Chemistry of 4-[N-(2-Chloroethyl)piperazin-1-yl]-5H-1,2,3-dithiazoles 

      Koyioni, Maria G.; Manoli, Maria; Koutentis, Panayiotis Andreas (2016)
      N-(4-Chloro-5H-1,2,3-dithiazol-5-ylidene)anilines react with DABCO in hot PhCl to give N-{4-[N-(2-chloroethyl)piperazin-1-yl]-5H-1,2,3-dithiazol-5-ylidene}anilines in high yields (70-92%). The reaction also works with ...

    • Article  

      Reforming of methane with carbon dioxide to synthesis gas over supported Rh catalysts 

      Tsipouriari, Vaso A.; Efstathiou, Angelos M.; Zhang, Z. L.; Verykios, Xenophon E. (1994)
      Reforming of methane with carbon dioxide to synthesis gas (CO/H2) has been investigated over rhodium supported on SiO2, TiO2, γ-Al2O3, MgO, CeO2, and YSZ (ZrO2 (8 mol% Y2O3)) catalysts in the temperature range of 650-750°C ...

    • Article  

      Selective catalytic reduction of nitric oxide by methane in the presence of oxygen over CaO catalyst 

      Fliatoura, K. D.; Verykios, Xenophon E.; Costa, Costas N.; Efstathiou, Angelos M. (1999)
      The selective catalytic reduction of nitric oxide by methane in the presence of oxygen was studied over CaO catalyst in the temperature range 550-850°C. The nitric oxide conversion-versus-temperature profile was found to ...

    • Article  

      The selective oxidation of methane to C2-hydrocarbons over lithium-doped TiO2 catalysts 

      Papageorgiou, D.; Efstathiou, Angelos M.; Verykios, Xenophon E. (1994)
      The oxidative coupling of methane (OCM) to C2-hydrocarbons was studied on a series of lithiumdoped titania catalysts by cofeeding methane (PCH4 = 0.5 bar) and oxygen (Po2 = 0.07-0.16 bar) at 1 bar total pressure in the ...

    • Doctoral Thesis  Open Access

      Καταλυτική αναγωγή ΝΟ σε ισχυρά οξειδωτικές συνθήκες με χρήση CH4 και H2 σε στερεά La2O3-CaO και Pd/Υπόστρωμα 

      Αναστασιάδου, Τασούλα (Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2006-06)
      Η μείωση των εκπομπών οξειδίων αζώτου ΝΟx στην ατμόσφαιρα σε συνθήκες πλούσιες σε οξυγόνο (lean de-NOx) με τη χρήση νέων φιλικών προς στο περιβάλλον καταλυτικών τεχνολογιών είναι ένα από τα κυριότερα περιβαλλοντικά θέματα ...

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