| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ghouri, Zafar Khan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2022Cooperative electrocatalytic effect of Pd and Ce alloys nanoparticles in PdCe@CNWs electrode for oxygen evolution reaction (OER)citations
- 2022Incorporation of manganese carbonyl sulfide ((Mn2S2 (CO)7) and mixed metal oxides-decorated reduced graphene oxide (MnFeCoO4/rGO) as a selective anode toward efficient OER from seawater splitting under neutral pH conditionscitations
- 2021Early transition-metal-based binary oxide/nitride for efficient electrocatalytic hydrogen evolution from saline water in different pH environmentscitations
- 2021Incorporation of Manganese Carbonyl Sulfide ((Mn2S2 (CO)7) and Mixed Metal Oxides-Decorated Reduced Graphene Oxide (MnFeCoO4/rGO) as a Selective Anode Toward Efficient OER from Seawater Splitting Under Neutral PH Conditions
- 2021Synthesis and experimental investigation of δ-MnO2/N-rGO nanocomposite for Li-O2 batteries applicationscitations
- 2021Theoretical and experimental investigations of Co-Cu bimetallic alloys-incorporated carbon nanowires as an efficient bi-functional electrocatalyst for water splittingcitations
- 2019Engineering of nickel based catalyst for direct urea fuel cell-energy from municipal liquid waste (Mlw)
- 2018Application of FTIR and LA-ICPMS spectroscopies as a possible approach for biochemical analyses of different rat brain regionscitations
- 2018Stable N-doped & FeNi-decorated graphene non-precious electrocatalyst for Oxygen Reduction Reaction in Acid Mediumcitations
- 2018Surfactant/organic solvent free single-step engineering of hybrid graphene-Pt/TiO2 nanostructure: Efficient photocatalytic system for the treatment of wastewater coming from textile industriescitations
- 2017Engineering of magnetically separable ZnFe2O4@ TiO2 nanofibers for dye-sensitized solar cells and removal of pollutant from watercitations
- 2016Photoluminescent and transparent Nylon-6 nanofiber mat composited by CdSe@ZnS quantum dots and poly (methyl methacrylate)citations
- 2016Nano-designed λ-CaCO3@rGO photo-catalyst for effective adsorption and simultaneous removal of organic pollutantcitations
- 2016Nickel nanoparticles-decorated graphene as highly effective and stable electrocatalyst for urea electrooxidationcitations
- 2016Supercapacitors based on ternary nanocomposite of TiO2&Pt@graphenescitations
- 2016Nano-engineered ZnO/CeO2 dots@CNFs for fuel cell applicationcitations
- 2015Synthesis and Electrochemical Properties of MnO 2 and Co-Decorated Graphene as Novel Nanocomposite for Electrochemical Super Capacitors Applicationcitations
- 2015Synthesis and characterization of Nitrogen-doped &CaCO3-decorated reduced graphene oxide nanocomposite for electrochemical supercapacitorscitations
- 2015Effective photocatalytic efficacy of hydrothermally synthesized silver phosphate decorated titanium dioxide nanocomposite fiberscitations
- 2014Co/CeO2-decorated carbon nanofibers as effective non-precious electro-catalyst for fuel cells application in alkaline mediumcitations
Places of action
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article
Synthesis and characterization of Nitrogen-doped &CaCO3-decorated reduced graphene oxide nanocomposite for electrochemical supercapacitors
Abstract
Alone, it is expected, and also was experimentally proved, that calcium carbonate and reduced graphene oxide do have negligible specific capacitance due to the chemical composition of both materials. However, synthesis of CaCO3 on the form of very thin sporadic layer attaching rGO results in dramatic increase in the specific capacitance of the obtained composite due to formation of the electrochemical double layer at the interfacial area. Moreover, the specific capacitance could be further enhanced by nitrogen-doping of the rGO sheets. Typically, a novel N-rGO/CaCO3 composite has been successfully synthesized by heat reflux strategy with graphite powder, calcium acetate and urea as raw materials.The composite was characterized by X-Ray diffraction (XRD), high resolution transmission electron microscopy (HR-TEM), field-emission scanning electron microscopy (FESEM), coupled with rapid EDAX (energy dispersive analysis of X-Ray) and X-ray photoelectron spectroscopy. The utilized physiochemical characterizations indicated that the final prepared composite can be demonstrated as N-doped rGO decorated by very thin discrete layer from calcium carbonate. Supercapacitive performance of N-rGO/CaCO3 composite has been investigated by cyclic voltammetry (CV), galvanostatic charge-discharge and electrochemical impedance spectroscopy in 1 M KOH solution. The results reveal that the N-rGO/CaCO3 composite delivers a large specific capacitance of as high as 214 Fg-1 and 188 Fg-1 at 5 mV s-1and 1.0 Ag-1, according to CV and galvanostatic charge-discharge tests, respectively; while the CaCO3, rGO, rGO/CaCO3, N-rGO based electrodes has a poor electrochemical performance at the same conditions. Moreover, the as-prepared composite exhibited excellent long cycle stability with about 88.7% specific capacitance retained after 10,000 cycles.