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dc.contributor.author
Gonzalez Perez, Omar
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dc.contributor.author
Bisang, Jose Maria
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dc.date.available
2018-08-17T16:43:21Z
dc.date.issued
2016-01
dc.identifier.citation
Gonzalez Perez, Omar; Bisang, Jose Maria; Alkaline peroxide electrosynthesis by oxygen reduction using an acid anolyte in a divided reactor with a three-dimensional rotating cylinder cathode and two-phase flow induced by centrifugal force; John Wiley & Sons Ltd; Journal of Chemical Technology and Biotechnology; 91; 1; 1-2016; 165-170
dc.identifier.issn
0268-2575
dc.identifier.uri
http://hdl.handle.net/11336/56167
dc.description.abstract
BACKGROUND: This work analyses the performance of a batch electrochemical reactor with a three-dimensional rotating cylinder cathode for the synthesis of alkaline peroxide by reduction of O2 under 0.1 MPa (abs). The centrifugal force produces a radial co-current flow of the gas and liquid phases through the cathode achieving good mass-transfer conditions for the O2 reduction. RESULTS: Galvanostatic experiments carried out during 2h at 2 A (macrokinetic current density 398 A m-2), 30°C and 1000rpm with 1molL-1 H2SO4 as anolyte demonstrates that the cationic exchange membrane Nafion® 415 is an appropriate separator. However, a small decrease in the alkalinity of the cathodic compartment was observed. The use as anolyte of an equimolar solution of Na2SO4 and H2SO4 (1molL-1) maintains constant the total alkalinity of the cathodic solution. An experiment of 6h yielded 10.3gL-1 H2O2 concentration with 62.3% current efficiency and 10.6 kWh kg-1 specific energy consumption, using Na2SiO3 as addition agent. CONCLUSION: A divided electrochemical reactor using an acid anolyte and a three-dimensional rotating cylinder cathode with co-current oxygen and liquid flows represents a simple strategy for localized generation of peroxide solutions with low total alkalinity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons Ltd
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Electrochemical Reactor
dc.subject
Hydrogen Peroxide
dc.subject
Oxygen Reduction
dc.subject
Three-Dimensional Electrode
dc.subject.classification
Otras Ingeniería Química
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Alkaline peroxide electrosynthesis by oxygen reduction using an acid anolyte in a divided reactor with a three-dimensional rotating cylinder cathode and two-phase flow induced by centrifugal force
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-16T17:38:15Z
dc.journal.volume
91
dc.journal.number
1
dc.journal.pagination
165-170
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Gonzalez Perez, Omar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina
dc.description.fil
Fil: Bisang, Jose Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina
dc.journal.title
Journal of Chemical Technology and Biotechnology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1002/jctb.4557
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jctb.4557
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