تصفح حسب المؤلف "Polychronopoulou K."
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Cu-Ce-O catalyst revisited for exceptional activity at low temperature CO oxidation reaction
Zedan A.F.; Polychronopoulou K.; Asif A.; AlQaradawi S.Y.; AlJaber A.S. ( Elsevier B.V. , 2018 , Article)In the present study, CexCu1−xO2−δ (x = 0, 0.3, 0.5, 0.8, 0.9, and 1) catalysts were synthesized using a facile and reproducible combustion method and were evaluated towards the CO oxidation (CO-OX) and CO preferential ... -
Rapid microwave assisted sol-gel synthesis of CeO2 and CexSm1-xO2 nanoparticle catalysts for CO oxidation
Polychronopoulou, K.; Zedan, Abdallah F.; Katsiotis, M.S.; Baker, M.A.; AlKhoori, A.A.; AlQaradawi, Siham Y.; Hinder, S.J.; AlHassan, Saeed... more authors ... less authors ( Elsevier , 2016 , Article)CeO2 and CexSm1-xO2 nanoparticle mixed oxides have been synthesized by microwave assisted sol-gel (MW sol-gel) and conventional sol-gel synthesis carried out at 60°C (typical sol-gel) and 100°C (approaching the MW temperature). ... -
Tailoring the efficiency of an active catalyst for CO abatement through oxidation reaction: The case study of samarium-doped ceria
Polychronopoulou K.; Zedan A.F.; AlKetbi M.; Stephen S.; Ather M.; Katsiotis M.S.; Arvanitidis J.; Christofilos D.; Isakovic A.F.; AlHassan S.... more authors ... less authors ( Elsevier Ltd , 2018 , Article)In the present study, for the first time we tailored organic chemistry traditional synthesis tools towards preparation of CexSm1-xO2 (x = 0.2, 0.5, 0.8, 1) fluorite-type mixed oxides which are used for CO abatement. In ... -
Tuning the activity of Cu-containing rare earth oxide catalysts for CO oxidation reaction: Cooling while heating paradigm in microwave-assisted synthesis
AlKetbi M.; Polychronopoulou K.; Zedan A.F.; Sebastian V.; Baker M.A.; AlKhoori A.; Jaoude M.A.; Alnuaimi O.; Hinder S.S.; Tharalekshmy A.; AlJaber A.S.... more authors ... less authors ( Elsevier Ltd , 2018 , Article)(Ce-La-xCu)O2 catalysts with low (3 at.%) and high (10 at.%) Cu content were prepared by conventional microwave (MW) and enhanced microwave methods where air cooling (AC), while heating, was applied. The catalysts were ...