The role of catalyst-support interactions in oxygen evolution anodes based on Co(OH)2 nanoparticles and carbon microfibers
Mallón, Laura (Universitat Autònoma de Barcelona. Departament de Química)
Romero Fernández, Nuria (Universitat Autònoma de Barcelona. Departament de Química)
Jiménez, Alicia (Universidad Autónoma de Madrid. Departamento de Química Inorgánica)
Martín Morales, Elena (Universitat Autònoma de Barcelona. Departament de Química)
Aleman Lara, Jose Julian (Universidad Autónoma de Madrid. Departamento de Química Orgánica)
Mas Balleste, Ruben (Universidad Autónoma de Madrid. Departamento de Química Inorgánica)
Bofill Arasa, Roger (Universitat Autònoma de Barcelona. Departament de Química)
Philippot, Karine (Université de Toulouse)
García-Antón, Jordi (Universitat Autònoma de Barcelona. Departament de Química)
Sala Román, Xavier (Universitat Autònoma de Barcelona. Departament de Química)

Data:	2020
Resum:	The performance of OER anodes based on supported nanocatalysts is highly dependent on the interactions taking place at the interface between the nanocatalyst and the employed conductive support. Herein, the versatility offered by the organometallic approach for the synthesis of metal-based nanostructures allowed preparing electrodes of tailored nanocatalyst-support interactions. A set of OER working electrodes based on Co(OH)2 nanoparticles (NPs) and carbon microfibers (CFs) were prepared. The so-obtained systems differ in either the stabilizer present at the surface of the NPs (THF or 1-heptanol), the surface functionalization of the used CFs (bare CFs or oxidized-CFs) or the growth of the NPs in the presence (in situ) or the absence (ex situ) of the carbonaceous support. Correlation of a detailed structural and compositional analysis with the electroactivity of the tested nanomaterials allows extracting valuable insights about the influence of the metal-support interface on the OER performance of the studied anodes.
Ajuts:	Agencia Estatal de Investigación RTI2018-095038-B-I00 Ministerio de Economía y Competitividad CTQ2015-64261-R
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Publicat a:	Catalysis science & technology, Vol. 10, issue 14 (July 2020) , p. 4513-4521, ISSN 2044-4761

DOI: 10.1039/D0CY00193G

Postprint 9 p, 4.2 MB

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