Electrosynthesis of hydrogen peroxide via the reduction of oxygen assisted by power ultrasound
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Título: | Electrosynthesis of hydrogen peroxide via the reduction of oxygen assisted by power ultrasound |
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Autor/es: | González García, José | Banks, Craig E. | Sljukic, Biljana | Compton, Richard |
Grupo/s de investigación o GITE: | Nuevos Desarrollos Tecnológicos en Electroquímica: Sonoelectroquímica y Bioelectroquímica |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | University of Oxford. Physical and Theoretical Chemistry Laboratory |
Palabras clave: | Hydrogen peroxide | Sono-electrochemistry | Reticulated vitreous glassy carbon | Green synthesis |
Área/s de conocimiento: | Química Física |
Fecha de creación: | 2006 |
Fecha de publicación: | abr-2007 |
Editor: | Elsevier |
Cita bibliográfica: | GONZÁLEZ GARCÍA, José, et al. “Electrosynthesis of hydrogen peroxide via the reduction of oxygen assisted by power ultrasound”. Ultrasonics Sonochemistry. Vol. 14, Issue 4 (Apr. 2007). ISSN 1350-4177, pp. 405-412 |
Resumen: | The electrosynthesis of hydrogen peroxide using the oxygen reduction reaction has been studied in the absence and presence of power ultrasound in a non-optimized sono-electrochemical flow reactor (20 cm cathodic compartment length with 6.5 cm inner diameter) with reticulated vitreous glassy carbon electrode (30 x 40 x 10 mm, 10 ppi, 7 cm2 cm-3) as the cathode. The effect of several electrochemical operational variables (pH, volumetric flow, potential) and of the sono-electrochemical parameters (ultrasound amplitude and horn-to-electrode distance) on the cumulative concentration of hydrogen peroxide and current efficiency of the electrosynthesis process have been explored. The application of power ultrasound was found to increase both the cumulative concentration of hydrogen peroxide and the current efficiency. The application of ultrasound is therefore a promising approach to the increased efficiency of production of hydrogen peroxide by electrosynthesis, even in the solutions of lower pH (<12). The results demonstrate the feasibility of at-site-of-use green synthesis of hydrogen peroxide. |
Patrocinador/es: | Ministerio de Educación y Ciencia (Spain) for the Grant (PR2004-0480) and Generalidad Valenciana (Project GV05/104). |
URI: | http://hdl.handle.net/10045/8483 |
ISSN: | 1350-4177 |
DOI: | 10.1016/j.ultsonch.2006.08.006 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.ultsonch.2006.08.006 |
Aparece en las colecciones: | INV - NDTESB - Artículos de Revistas |
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revisedmanuscriptmontado.pdf | Versión revisada (acceso libre) | 254,56 kB | Adobe PDF | Abrir Vista previa |
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