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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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Célérier, Stéphane
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 20242D versus 3D‐Like Electrical Behavior of MXene Thin Films: Insights from Weak Localization in the Role of Thickness, Interflake Coupling and Defects
- 2023Mo2CTx MXene supported nickel-iron alloy: an efficient and stable heterostructure to boost oxygen evolution reactioncitations
- 2023Mo2CTx MXene supported nickel-iron alloy: an efficient and stable heterostructure to boost oxygen evolution reaction.citations
- 2023Low temperature in situ immobilization of nanoscale fcc and hcp polymorphic nickel particles in polymer-derived Si–C–O–N(H) to promote electrocatalytic water oxidation in alkaline mediacitations
- 2022Ion Implantation Enhanced Exfoliation Efficiency of V2AlC Single Crystals: Implications for Large V2CTz Nanosheet Productioncitations
- 2022Microstructural and mechanical characterizations of Mg-based nanocomposites with MAX phases or MXenes after severe plastic deformation treatments
- 2021Ion Implantation as an Approach for Structural Modifications and Functionalization of Ti 3 C 2 T x MXenescitations
- 2021Ion Implantation Induced Structural Modifications and Functionalization of Ti 3 C 2 T x MXenes
- 2020On a Two-Dimensional MoS2 /Mo2CTx Hydrogen Evolution Catalyst Obtained by the Topotactic Sulfurization of Mo2CTx MXenecitations
- 2020On a Two-Dimensional MoS2/Mo2CTxHydrogen Evolution Catalyst Obtained by the Topotactic Sulfurization of Mo2CTxMXenecitations
- 2019MXene Supported Cobalt Layered Double Hydroxide Nanocrystals: Facile Synthesis Route for a Synergistic Oxygen Evolution Reaction Electrocatalystcitations
- 2017A new etching environment (FeF$_3$/HCl) for the synthesis of two-dimensional titanium carbide MXenes: a route towards selective reactivity vs. watercitations
- 2015Spectroscopic evidence in the visible-ultraviolet energy range of surface functionalization sites in the multilayer Ti3 C2 MXenecitations
- 2006New chemical route based on sol–gel process for the synthesis of oxyapatite La9.33Si6O26citations
- 2005Synthesis by sol–gel route of oxyapatite powders for dense ceramics : applications as electrolytes for solid oxide fuel cellscitations
Places of action
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article
Mo2CTx MXene supported nickel-iron alloy: an efficient and stable heterostructure to boost oxygen evolution reaction.
Abstract
<jats:title>Abstract</jats:title><jats:p>A polyol-assisted solvothermal route is used to synthesize NixFey nanoalloys supported on a highly electron conductive 2D transition metal Mo2CTx MXene. Structural, morphological and chemical characteristics of the materials are determined using several physicochemical techniques. The MXene support allows not only the formation of a nanostructured metallic NixFey nanoalloys, but also favors the interfacial charge transfer for the OER. The NixFey@Mo2CTx material with a Ni/Fe ratio of 2.66 leads to the outstanding activity for the OER with an amazingly low Tafel slope value of 34 mV dec-1 and a current density of 10 mA.cm-2 at a potential of only 1.50 V vs. RHE. In situ Raman experiments show that β-NiOOH formed by oxidation of the nanoalloys under positive scan, likely containing a very small amount of Fe, is the active phase for the OER. This material exhibits also an excellent stability over 168 h in a 5 M KOH electrolyte. TEM-EELS analyses after 100 voltammetric cycles between 0.2 to 1.55 V vs. RHE evidence for the first time that the MXene support is not fully oxidized in the first cycle. Also, oxyhydroxide layer formed in the OER potential region at the surface of the NixFey nanoparticles can be reversibly reduced.</jats:p>