Browsing by Author "ZEDAN"
Now showing items 1-7 of 7
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A study of low-temperature CO oxidation over mesoporous Cuo-TiO2 nanotube catalysts
Zedan, Abdallah F.; Allam, Nageh K.; AlQaradawi, Siham Y. ( MDPI AG , 2017 , Article)Supported copper oxide nanoparticles have attracted considerable attention as active and non-precious catalysts for many catalytic oxidation reactions. Herein, mesoporous xCuO-TiO2 nanotube catalysts were fabricated, and ... -
Computational study on oxynitride perovskites for CO2 photoreduction
Hafez, Ahmed M.; Zedan, Abdallah F.; AlQaradawi, Siham Y.; Salem, Noha M.; Allam, Nageh K. ( Elsevier Ltd. , 2016 , Article)The photocatalytic conversion of CO2 into chemical fuels is an attractive route for recycling this greenhouse gas. However, the large scale application of such approach is limited by the low selectivity and activity of the ... -
INVESTIGATION OF THE HUMORAL IMMUNE RESPONSES IN SARS-COV-2 INFECTED AND VACCINATED INDIVIDUALS
ZEDAN, HADEEL TAREQ MOHAMMED (06-2 , Master Thesis)Background: Protective and lasting immunity to viral infections or vaccines are usually achieved through the combined actions of both cellular and humoral immune responses. Although there exists clear evidence supporting ... -
Low-Temperature CO Oxidation Over CuO-TiO2 Nanocatalysts
Al-Qaradawi, Siham; Zedan, Abdallah F.; Rady, Hossam S.; Soliman, Khaled; Aljaber, Amina S.; Allam, Nageh K.... more authors ... less authors ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Among the diverse catalytic processes, the heterogeneous catalytic CO oxidation is an important reaction for removal of small amounts of poisoning CO in fuel cell applications and environmental remediation. Therefore, there ... -
Optimization Of The Electronic And Optical Properties Of Tio2 For Clean Fuel Production
Fadlallah, Mohamed; Zedan, Abdallah; Allam, Nageh; Aljaber, Amina; Alqaradawi, Siham ( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Among different crystal structures and morphologies of TiO2, vertically oriented anatase nanotube arrays show the highest activity for solar energy conversion. However, the long-standing bottleneck is the fact that TiO2 ... -
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). ... -
Silver Nanoparticles-Decorated Titanium Oxynitride Nanotube Arrays for Enhanced Solar Fuel Generation
Soliman, Khaled A.; Zedan, Abdallah F.; Khalifa, Ahmed; El-Sayed, Hany A.; Aljaber, Amina S.; AlQaradawi, Siham Y.; Allam, Nageh K.... more authors ... less authors ( Nature Publishing Group , 2017 , Article)We demonstrate, for the first time, the synthesis of highly ordered titanium oxynitride nanotube arrays sensitized with Ag nanoparticles (Ag/TiON) as an attractive class of materials for visible-light-driven water splitting. ...