Browsing Τμήμα Χημείας / Department of Chemistry by Author "Boghosian, Soghomon"
Now showing items 1-4 of 4
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Article
Low-temperature water-gas shift on Pt/Ce0.5La0.5O2 - δ: Effect of support synthesis method
Petallidou, Klito C.; Boghosian, Soghomon; Efstathiou, Angelos M. (2015)A series of 0.5 wt% Pt/Ce0.5La0.5O2 - δ (Ce:La = 1:1) catalysts, the supports of which were prepared by different methods, namely: (i) sol-gel using citrate or oxalate as complexing agent, (ii) pechini, and (iii) urea ...
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Article
A Novel Analysis of Transient Isothermal 18O Isotopic Exchange on Commercial CexZr1−xO2-Based OSC Materials
Vasiliades, Michalis A.; Harris, Deb; Stephenson, Hazel; Boghosian, Soghomon; Efstathiou, Angelos M. (2019)A novel methodology for the analysis of 18O2-transient isothermal isotopic exchange (TIIE) response curves obtained over commercial mixed metal oxides upon the gas switch 16O2/Ar (30 min) → 18O2/Kr/Ar (t) at constant T in ...
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Article
Structural and Redox Properties of Ce1-xZrxO2-δ and Ce0.8Zr0.15RE0.05O2-δ (RE: La, Nd, Pr, Y) Solids Studied by High Temperature in Situ Raman Spectroscopy
Andriopoulou, Chrysanthi; Trimpalis, Antonios; Petallidou, Klito C.; Sgoura, Anna; Efstathiou, Angelos M.; Boghosian, Soghomon (2017)In situ Raman spectroscopy at temperatures up to 450 °C is used to probe the structural and redox properties of Ce1-xZrxO2-δ solids (x = 0-0.8) prepared by the citrate sol-gel and coprecipitation with urea methods. The ...
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Article
Water-gas shift reaction on Pt/Ce1- xTixO 2-δ: The effect of Ce/Ti ratio
Petallidou, Klito C.; Polychronopoulou, Kyriaki; Boghosian, Soghomon; Garcia-Rodriguez, S.; Efstathiou, Angelos M. (2013)Pt nanoparticles (1.2-2.0 nm size) supported on Ce1-xTi xO2-δ (x = 0, 0.2, 0.5, 0.8, and 1.0) carriers synthesized by the citrate sol-gel method were tested toward the water-gas shift (WGS) reaction in the 200-350 C range. ...