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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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Vellaisamy, Arul Lenus Roy
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 20242D MXene Interface Engineered Bismuth Telluride Thermoelectric Module with Improved Efficiency for Waste Heat Recoverycitations
- 2023Facile composite engineering to boost thermoelectric power conversion in ZnSb devicecitations
- 20233D Architectural MXene‐based Composite Films for Stealth Terahertz Electromagnetic Interference Shielding Performancecitations
- 2023Dispersion of InSb Nanoinclusions in Cu<sub>3</sub>SbS<sub>4</sub> for Improved Stability and Thermoelectric Efficiencycitations
- 2023Eco-Friendly Cerium–Cobalt Counter-Doped Bi2Se3 Nanoparticulate Semiconductorcitations
- 2022Hierarchically Interlaced 2D Copper Iodide/MXene Composite for High Thermoelectric Performancecitations
- 2022Amorphous carbon nano-inclusions for strategical enhancement of thermoelectric performance in Earth-abundant Cu3SbS4citations
- 2022Probing the Effect of MWCNT Nanoinclusions on the Thermoelectric Performance of Cu3SbS4 Compositescitations
- 2022Thermoelectric properties of sulfide and selenide-based materialscitations
- 2022Insights into the Classification of Nanoinclusions of Composites for Thermoelectric Applicationscitations
- 2021Ultralow Thermal Conductivity in Dual-Doped n-Type Bi2Te3 Material for Enhanced Thermoelectric Propertiescitations
- 2021Current advancements on charge selective contact interfacial layers and electrodes in flexible hybrid perovskite photovoltaicscitations
- 2021Effective decoupling of seebeck coefficient and the electrical conductivity through isovalent substitution of erbium in bismuth selenide thermoelectric materialcitations
- 2019Simultaneous Enhancement of Thermopower and Electrical Conductivity through Isovalent Substitution of Cerium in Bismuth Selenide Thermoelectric Materialscitations
- 2019Efficient oxygen electroreduction kinetics by titanium carbide@nitrogen doped carbon nanocompositecitations
- 2019Influence of nitrogen dopant source on the structural, photoluminescence and electrical properties of ZnO thin films deposited by pulsed spray pyrolysiscitations
- 2007Nanocomposite field effect transistors based on zinc oxide/polymer blendscitations
- 2004Influence of the substrate temperature to the performance of tris (8-hydroxyquinoline) aluminum based organic light emitting diodescitations
Places of action
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article
Efficient oxygen electroreduction kinetics by titanium carbide@nitrogen doped carbon nanocomposite
Abstract
A simple approach towards preparation of non-noble metal electrocatalyst for oxygen reduction reaction in low temperature fuel cells has been necessity for a sustainable green technology. Herein, a cost-effective and facile method of preparation of TiC@N-doped graphene like carbon nanocomposite (TiC@NC) has been discussed. The composite structure of as-prepared TiC@NC was confirmed using structural analysis and morphological studies. Interestingly, the optimized TiC@NC(0.2)-800 electrocatalyst shows remarkable oxygen reduction reaction (ORR) kinetics with better onset potential +1.08 vs RHE and significant current density of 4.8 mA/cm<sup>2</sup> in alkaline medium. Further, obtained catalyst exhibits four electron transfer mechanism similar to Pt-based electrocatalysts. Additionally, TiC@NC(0.2)-800 shows better mass activity (∼410 mA/mg) as compared to other compositions. Moreover, the single step kinetics mechanism has been seen due to lower (<5%) peroxide yield. The relatively lower charge transfer resistance at electrode/electrolyte interface of TiC@NC (0.2)-800 electrode supports for higher catalytic activity. Additionally, electrochemical cycling reveals the better stability by TiC@NC(0.2)-800 even after 10,000 cycles (10 mV negative shift in E<sub>1/2</sub>) than that of state of art Pt/C catalyst (80 mV negative shift in E<sub>1/2</sub>). The presence of N-doped carbon around TiC crystals is responsible for better electrocatalytic activity (due to optimal doping synergy), though the support of TiC makes the electrocatalyst more stable in nature (thanks to strong TiC-NC interactions). Additionally, TiC@NC(0.2)-800 does not show any response towards methanol oxidation reaction, annulling the cross-over effects. Hence, TiC@NC(0.2)-800 could be hopeful substitute for conventional Pt/C electrocatalyst for energy conversion.