| 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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Yamauchi, Yusuke
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Dealloying Strategies for Mesoporous AuCu Nanoparticles: Impact on Internal Metallic Structure and Electrocatalytic Performancecitations
- 2024Selection of Fe as a barrier for manufacturing low-cost MgB2 multifilament wires - Advanced microscopy study between Fe and B reactioncitations
- 2023Weak Bonds, Strong Effectscitations
- 2023Flexible Nanoarchitectonics for Biosensing and Physiological Monitoring Applicationscitations
- 2023Mesoporous multimetallic nanospheres with exposed highly entropic alloy sitescitations
- 2023High entropy alloying strategy for accomplishing quintuple-nanoparticles grafted carbon towards exceptional high-performance overall seawater splittingcitations
- 2022Multifunctional materials for photo-electrochemical water splittingcitations
- 2022Plasma-Induced Nanocrystalline Domain Engineering and Surface Passivation in Mesoporous Chalcogenide Semiconductor Thin Filmscitations
- 2022Efficient lithium-ion storage using a heterostructured porous carbon framework and its in situ transmission electron microscopy studycitations
- 2021Self-templated fabrication of hierarchical hollow manganese-cobalt phosphide yolk-shell spheres for enhanced oxygen evolution reactioncitations
- 2020Photodegradation Activity of Poly(ethylene oxide-b-<i>ε</i>-caprolactone)-Templated Mesoporous TiO<sub>2</sub> Coated with Au and Ptcitations
- 2020Holey assembly of two-dimensional iron-doped nickel-cobalt layered double hydroxide nanosheets for energy conversion applicationcitations
- 2020Potassium-Ion Storage in Cellulose-Derived Hard Carboncitations
- 2019Reduced Graphene Oxide (rGO) Prepared by Metal-Induced Reduction of Graphite Oxidecitations
- 2019Enhancement of thermoelectric properties of La-doped SrTiO <sub>3</sub> bulk by introducing nanoscale porositycitations
- 2018Graphene-oxide-loaded superparamagnetic iron oxide nanoparticles for ultrasensitive electrocatalytic detection of microRNAcitations
- 2017Self-assembly of polymeric micelles made of asymmetric polystyrene-b-polyacrylic acid-b-polyethylene oxide for the synthesis of mesoporous nickel ferritecitations
- 2017Nano-micro-porous skutterudites with 100% enhancement in ZT for high performance thermoelectricitycitations
- 2016Cyano-Bridged Trimetallic Coordination Polymer Nanoparticles and Their Thermal Decomposition into Nanoporous Spinel Ferromagnetic Oxidescitations
Places of action
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article
Self-templated fabrication of hierarchical hollow manganese-cobalt phosphide yolk-shell spheres for enhanced oxygen evolution reaction
Abstract
<p>Hierarchical nanostructures with hollow architectures can provide rich active sites, improved transport of ions, and highly robust structure for electrochemical applications. In this work, we report the self-templated fabrication of hierarchical manganese-cobalt phosphide (Mn-Co phosphide) yolk-shell spheres using highly uniform cobalt glycerate spheres as sacrificial templates. Through a simple exchange reaction with the manganese precursor solution at room temperature, these cobalt glycerate spheres are readily converted to hierarchical Mn-Co LDH yolk-shell spheres, which can be further phosphidized at 350 °C under inert atmosphere to generate hierarchical Mn-Co phosphide with distinct yolk-shell morphology. When tested as an electrocatalyst for oxygen evolution reaction (OER), the hierarchical Mn-Co phosphide yolk-shell spheres exhibit an overpotential of 330 mV at a current density of 10 mA cm<sup>−2</sup> and a Tafel slope of 59.0 mV dec<sup>-1</sup>, which are higher than those of Mn-Co oxide yolk-shell spheres (480 mV and 113 mV dec<sup>-1</sup>) and hierarchical cobalt phosphide spheres (410 mV and 61.3 mV dec<sup>-1</sup>). Post-OER analysis by XPS reveals that the high activity of the hierarchical Mn-Co phosphide yolk-shell catalyst originates from the existence of Mn<sup>4+</sup>/Mn<sup>3+</sup> and Co<sup>2+</sup>/Co<sup>3+</sup> redox couples and the formation of active metal oxyhydroxide species on its surface. The proposed self-sacrificial templating strategy will provide useful guidance for future construction of hollow inorganic metal nanostructures with yolk-shell morphology for energy storage and conversion applications.</p>