Chemical Communications · 2019 · 46 citations · 23 references
Natural SciencesChemical EngineeringMaterials ScienceCatalysisElectrochemistryNanomaterialsCatalyst PreparationCatalytic MechanismsElectrode MaterialsMetal Oxide NanomaterialsNanocatalysisRedox-active MaterialsCatalytic ActivityCatalytic Activity EnhancementElectrocatalyst DesignElectrocatalytic NanomaterialsElectrocatalytic Oxygen EvolutionMetal Oxide Oxygen Evolution CatalystsOxygen Evolution CatalystsOxygen Reduction Catalysts
NiFe layered double hydroxides (NiFe-LDHs) have been regarded as significant electrocatalysts for the oxygen evolution reaction (OER). However, their overpotential must still be further reduced to enable commercial applications. Herein, a promising and highly effective "hydroxyl ions hungry" electrode structure was prepared for the first time via a two-step hydrothermal reaction procedure to enhance the surface adsorption kinetics to obtain an ultralow overpotential. The electrode exhibits OER activity with ultralow overpotentials of 203 mV and 293 mV at the current densities of 10 mA cm-2 and 100 mA cm-2, respectively, in 1.0 M KOH. These results reveal an important way to improve the catalytic performance in an alkaline medium.
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Nanowire dye-sensitized solar cells
Matt Law, Lori E. Greene, Justin C. Johnson et al. · Nature Materials · 2005 · 5.3K citations
Natural Sciences, Materials Engineering, Materials Science +12