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RESEARCH PRODUCT
Alkoxide-intercalated NiFe-layered double hydroxides magnetic nanosheets as efficient water oxidation electrocatalysts
Gonzalo AbellánGonzalo AbellánEugenio CoronadoFrank HaukeJose A. CarrascoAndreas HirschMaria VarelaJorge Romerosubject
Thermogravimetric analysisMaterials scienceFOS: Physical sciences-02 engineering and technologyOverpotentialengineering.material010402 general chemistryMass spectrometry01 natural sciencesInorganic Chemistrychemistry.chemical_compoundPhysics - Chemical PhysicsScanning transmission electron microscopySpectroscopyChemical Physics (physics.chem-ph)Condensed Matter - Materials ScienceTafel equationLayered double hydroxidesMaterials Science (cond-mat.mtrl-sci)Naturwissenschaftliche Fakultät021001 nanoscience & nanotechnology0104 chemical sciencesChemical engineeringchemistryddc:540Alkoxideengineering0210 nano-technologydescription
Alkoxide-intercalated NiFe-layered double hydroxides were synthesized via the nonaqueous methanolic route. These nanoplatelets exhibit high crystalline quality as demonstrated by atomic resolution scanning transmission electron microscopy combined with electron energy-loss spectroscopy. Moreover, the presence of the alkoxide moieties has been unambiguously demonstrated by means of thermogravimetric analysis coupled to a mass spectrometer. These NiFe-LDHs can be exfoliated in water or organic solvents and processed into homogeneous ultra-thin films (< 3nm thick) with the assistance of O2-plasma. The study of their behaviour as water oxidation electrocatalysts has shown an outstanding performance at basic pHs (small overpotential of ca. 249 mV and Tafel slopes in the range of 52-55 mV per decade).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-01-01 | Inorganic Chemistry Frontiers |