تصفح حسب المؤلف "Ghouri, Zafar Khan"
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Applicable anode based on Co3O4–SrCO3 heterostructure nanorods-incorporated CNFs with low-onset potential for DUFCs
Ghouri, Zafar Khan; Elsaid, Khaled; Al-Meer, Saeed; Barakat, Nasser A.M. ( Springer , 2017 , Article)Besides the high-current density, lower onset potential of urea electrooxidation is key parameter which influences the direct urea fuel cell performance. In the present article, low-onset potential has been reported for ... -
Capacitance of MnO2 Micro-Flowers Decorated CNFs in Alkaline Electrolyte and Its Bi-Functional Electrocatalytic Activity toward Hydrazine Oxidation
Ji, Seong-Min; Ghouri, Zafar Khan; Elsaid, Khaled; Ko, Yo Han; Al-Meer, Saeed; Ahmad, M.I.; Son, Dong Ick; Kim, Hak Yong... more authors ... less authors ( ESG , 2017 , Article)Well-dispersed MnO2 micro-flowers were grown directly on carbon nanofibers via a simple hydrothermal technique without any template. Structure and morphology were characterized by X-ray diffraction (XRD) and field-emission ... -
CoNi Nanoparticles/CNT Composite as Effective Anode for Direct Urea Fuel Cells
Barakat, Nasser; Alajami1, Mohannad; Ghouri, Zafar Khan; Al-Meer, Saeed ( ESG. , 2018 , Article)CoNi nanoparticles/CNTs composite is introduced as workable anode in the direct urea fuel cells. The proposed anode was prepared by calcination under argon atmosphere of a dried cobalt acetate/nickel acetate/CNTs/ethanol ... -
Critical Behavior of La0.8Ca0.2Mn1−xCoxO3 Perovskite (0.1 ≤ x ≤ 0.3)
Turki, Dorra; Ghouri, Zafar Khan; Al-Meer, Saeed; Elsaid, Khaled; Ahmad, M.I.; Easa, Ahmed; Remenyi, Gyorgy; Mahmood, Sami; Hlil, El Kebir; Ellouze, Mohamed; Elhalouani, Foued... more authors ... less authors ( MDPI , 2017 , Article)The critical properties of La0.8Ca0.2Mn1−xCoxO3 (x = 0, 0.1, 0.2 and 0.3) compounds were investigated by analysis of the magnetic measurements in the vicinity of their critical temperature. Arrott plots revealed that the ... -
Desulfurization of the dibenzothiophene ) (DBT) by using -based imidazolium-basedionic ionic i liquids(Ils)
Kazmi, Bilal; Zahoor, Awan; Hashmi, Saud; Ghouri, Zafar Khan ( EnPress Publisher LLC. , 2018 , Article)In this work we have examined the industrial scale extraction process of ultra low sulfur diesel with the help of simulation software ASPEN Plus®.This work focuses on the [Cnmim][BF4](imidazolium-based) ionic liquid and ... -
Engineering of magnetically separable ZnFe2O4@ TiO2 nanofibers for dye-sensitized solar cells and removal of pollutant from water
Al-Meer, Saeed; Ghouri, Zafar Khan; Elsaid, Khaled; Easa, Ahmed; Al-Qahtani, Muneera Th.; Shaheer Akhtar, M.... more authors ... less authors ( Elsevier , 2017 , Article)Abstract In this study, magnetic Zinc Ferrite (ZnFe2O4)@TiO2 nanofibers were prepared by low cost and nontoxic route; hydrothermal technique followed by electrospinning process. The prepared magnetic ZnFe2O4@TiO2 nanofibers ... -
Influence of Ag nanoparticles on state of the art MnO2 nanorods performance as an electrocatalyst for lithium air batteries
Awan, Zahoor; Ghouri, Zafar Khan; Hashmi, Saud ( Elsevier , 2018 , Article)Abstract The need for an alternative and efficient electrocatalyst to replace Pt-based noble materials is a goal of prime importance in Li– air battery technology. In this work, novel silver nanoparticles-incorporated MnO2 ... -
Leaching of Some Essential and Non-Essential Heavy Metals from Modern Glazed Ceramic Crockeries Imported into Qatar from China, India and Spain
MI, Ahmed; Ghouri, Zafar Khan; Abdelfatah, Shereen; Easa, Ahmed; Al-Meer, Saeed ( OMICS International , 2018 , Article)In this study, the leaching potential of ceramic crockeries available in Qatar market has been evaluated using inductively coupled plasma mass spectrometry (ICP-MS). Ceramic crockeries decorated with glaze matter containing ... -
Stable N-doped & FeNidecorated graphene non-precious electrocatalyst for Oxygen Reduction Reaction in Acid Medium
Barakat, Nasser A. M.; El-Deen, Ahmed G.; Ghouri, Zafar Khan; Saeed, Al-Meer ( Nature Publishing Group , 2018 , Article)NiFe nanoparticles-decorated & N-doped graphene is introduced as an effective and stable nonprecious electrocatalyst for ORR in the acid medium. Compared to conventional Pt/C electrodes under the same conditions, the ... -
Surfactant/organic solvent free single-step engineering of hybrid graphene-Pt/TiO2 nanostructure: Efficient photocatalytic system for the treatment of wastewater coming from textile industries
Ghouri, Zafar Khan; Elsaid, Khaled; Abdala, Ahmed; Al-Meer, Saeed; Barakat, NasserA. M. ( Nature Publishing Group , 2018 , Article)In this study, hybrid graphene-Pt/TiO2 nanostructure were synthesized by single-step, inexpensive and surfactant/organic solvent free route; hydrothermal technique. The physicochemical properties of hybrid graphene-Pt/TiO2 ... -
Synthesis and physicochemical studies of perovskite manganite La0.8Ca0.2Nn1 xCoxO3(0?x?0.3)
Turki, D.; Ghouri, Zafar Khan; Al-Meer, Saeed; Elsaid, Khaled; Ahmad, M.I.; Easa, Ahmed; Ellouze, M.; Hlil, E.K.... more authors ... less authors ( Seoul National University 501-321 , 2017 , Article)The physicochemical properties of La0.8Ca0.2Mn1xCoxO nanopowders as a function of Co content (x) have been investigated. La0.8Ca0.2Mn1xCoxO nanopowders were synthesized by sol-gel method and morphologically and structurally ... -
Synthesis and Physicochemical Studies of Perovskite Manganite La0.8Ca0.2Nn1−xCoxO3 (0 ≤ x ≤ 0.3)
Turki, D.; Ghouri, Zafar Khan; Al-Meer, Saeed; Elsaid, Khaled; Ahmad, M.I.; Easa, Ahmed; Ellouze, M.; Hlil, E.K.... more authors ... less authors ( The Korean Magnetics Society , 2017 , Article)The physicochemical properties of La0.8Ca0.2Mn1−xCoxO3 nanopowders as a function of Co content (x) have been investigated. La0.8Ca0.2Mn1−xCoxO3 nanopowders were synthesized by sol-gel method and morphologically and ... -
Validation of Total Mercury in Marine Sediment and Biological Samples, Using Cold Vapour Atomic Absorption Spectrometry
Abou Elezz, Ahmed; Hassan, Hassan Mustafa; Alsaadi, Hamood Abdulla; Easa, Ahmed; Al-Meer, Saeed; Elsaid, Khaled; Ghouri, Zafar Khan; Abdala, Ahmed... more authors ... less authors ( MDPI , 2018 , Article)A method for the measurement of total mercury (T-Hg) in environmental samples using cold vapour atomic absorption spectrometry (CV AAS) has been validated yielding a dynamic range (0.04–10.00 g/kg) and high certified ... -
ZnO@C (core@shell) microspheres derived from spent coffee grounds as applicable non-precious electrode material for DMFCs
Ghouri, Zafar Khan; Al-Meer, Saeed; Barakat, Nasser A. M.; Kim, Hak Yong ( Nature Publishing Group , 2017 , Article)Although numerous reports have introduced non precious electrocatalysts for methanol oxidation, most of those studies did not consider the corresponding high onset potential which restricts utilization in real fuel cells. ...