Photoelectrochemical behavior of molybdenum-modified nanoparticulate hematite electrodes
Empreu sempre aquest identificador per citar o enllaçar aquest ítem
http://hdl.handle.net/10045/72657
Títol: | Photoelectrochemical behavior of molybdenum-modified nanoparticulate hematite electrodes |
---|---|
Autors: | Cots, Ainhoa | Cibrev, Dejan | Bonete, Pedro | Gómez, Roberto |
Grups d'investigació o GITE: | Grupo de Fotoquímica y Electroquímica de Semiconductores (GFES) |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica |
Paraules clau: | Hematite | Nanoparticles | Molybdenum | Photoelectrochemical | Water splitting |
Àrees de coneixement: | Química Física |
Data de publicació: | de gener-2018 |
Editor: | Springer Berlin Heidelberg |
Citació bibliogràfica: | Journal of Solid State Electrochemistry. 2018, 22(1): 149-156. doi:10.1007/s10008-017-3729-6 |
Resum: | The preparation of molybdenum-modified hematite electrodes by means of chemical bath deposition and their photoelectrochemical behavior toward water oxidation are reported in this work. The addition of a molybdenum precursor to the bath solution for hematite deposition induces a remarkable change of morphology in the resulting film from (110)-oriented nanorods to polyhedral nanoparticles. Despite the resulting loss of order, by controlling the Mo/Fe molar ratio in the bath solution, a significant improvement of the water oxidation photocurrent is achieved compared to nanorod pristine hematite electrodes. Such a (photo)electrochemical enhancement is mainly explained by an effective surface state passivation in Mo-modified hematite films. FE-SEM, TEM, XRD, and XPS were employed for electrode structural and morphological characterization. |
Patrocinadors: | This work was supported by the MINECO of Spain (project MAT2015-71727-R FONDOS FEDER). A. C. wants to thank the University of Alicante for a predoctoral grant. D. C. is also grateful to MINECO for the award of an FPI grant. |
URI: | http://hdl.handle.net/10045/72657 |
ISSN: | 1432-8488 (Print) | 1433-0768 (Online) |
DOI: | 10.1007/s10008-017-3729-6 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © Springer-Verlag GmbH Germany 2017 |
Revisió científica: | si |
Versió de l'editor: | http://dx.doi.org/10.1007/s10008-017-3729-6 |
Apareix a la col·lecció: | INV - GFES - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
---|---|---|---|---|
2018_Cots_etal_JSolidStateElectrochem_final.pdf | Versión final (acceso restringido) | 1,13 MB | Adobe PDF | Obrir Sol·licitar una còpia |
Tots els documents dipositats a RUA estan protegits per drets d'autors. Alguns drets reservats.