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| Título: | Fe3O4@NiFexOy nanoparticles with enhanced electrocatalytic properties for oxygen evolution in carbonate electrolyte |
Autor: | Luo, ZhiShan; Martí-Sànchez, Sara CSIC ORCID; Nafria, Raquel; Mata, Maria de la CSIC ORCID; Morante, Joan Ramón CSIC ORCID; Arbiol, Jordi CSIC ORCID CVN; Ibáñez, María; Cabot, Andreu | Palabras clave: | Electrocatalysts Oxygen evolution reaction OER Nanoparticles Magnetite Iron oxide Core−shell nanostructure |
Fecha de publicación: | 2016 | Editor: | American Chemical Society | Citación: | ACS Applied Materials and Interfaces 8(43): 29461-29469 (2016) | Resumen: | The design and engineering of earth-abundant catalysts that are both cost-effective and highly active for water splitting are crucial challenges in a number of energy conversion and storage technologies. In this direction, herein we report the synthesis of FeO@NiFeO core-shell nanoheterostructures and the characterization of their electrocatalytic performance toward the oxygen evolution reaction (OER). Such nanoparticles (NPs) were produced by a two-step synthesis procedure involving the colloidal synthesis of FeO nanocubes with a defective shell and the posterior diffusion of nickel cations within this defective shell. FeO@NiFeO NPs were subsequently spin-coated over ITO-covered glass and their electrocatalytic activity toward water oxidation in carbonate electrolyte was characterized. FeO@NiFeO catalysts reached current densities above 1 mA/cm with a 410 mV overpotential and Tafel slopes of 48 mV/dec, which is among the best electrocatalytic performances reported in carbonate electrolyte. | Descripción: | et al. | URI: | http://hdl.handle.net/10261/159466 | DOI: | 10.1021/acsami.6b09888 | Identificadores: | doi: 10.1021/acsami.6b09888 e-issn: 1944-8252 issn: 1944-8244 |
| Aparece en las colecciones: | (CIN2) Artículos |
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