Abstract:
A high-temperature wall-tube electrode cell (WTE) for electrochemical studies in hydrothermal systems is described. The cell contains a jet impinging on a wall (electrode) where the hydrodynamics in the stagnation region is well defined and the WTE has uniform accessibility and is equivalent to a rotating disc electrode (RDE). The construction and testing of the high-temperature WTE is described and its performance tested using different redox couples such as hexacyanoferrate(II/III) and quinone/hydroquinone. Diffusion coefficients of iron(II)/iron(III) are reported at temperatures up to 142 °C in sulfate solutions and are analysed taking into account the speciation in the solution. The application of the Stokes-Einstein equation to describe the temperature dependence of the diffusion coefficients in systems with strong ionic association is discussed for iron(II)/iron(III) and other species.
Registro:
Documento: |
Artículo
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Título: | High-temperature wall-tube cell- Design, characterization and results of mass transport phenomena |
Autor: | Trevani, L.N.; Calvo, E.; Corti, H.R. |
Filiación: | Instituto de Química Física de los Materiales, Medio Ambiente y Energía, Facultad de Ciencias Exactas y Naturales, Pabellón II, 1428 Buenos Aires, Argentina Unidad de Actividad Química, Comisión Nacional de Energía Atómica, Av. Libertador 8250, 1429 Buenos Aires, Argentina Argentine Science Research Council (CONICET), Argentina
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Año: | 1997
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Volumen: | 93
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Número: | 24
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Página de inicio: | 4319
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Página de fin: | 4326
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DOI: |
http://dx.doi.org/10.1039/a703984k |
Título revista: | Journal of the Chemical Society - Faraday Transactions
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ISSN: | 09565000
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09565000_v93_n24_p4319_Trevani |
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Citas:
---------- APA ----------
Trevani, L.N., Calvo, E. & Corti, H.R.
(1997)
. High-temperature wall-tube cell- Design, characterization and results of mass transport phenomena. Journal of the Chemical Society - Faraday Transactions, 93(24), 4319-4326.
http://dx.doi.org/10.1039/a703984k---------- CHICAGO ----------
Trevani, L.N., Calvo, E., Corti, H.R.
"High-temperature wall-tube cell- Design, characterization and results of mass transport phenomena"
. Journal of the Chemical Society - Faraday Transactions 93, no. 24
(1997) : 4319-4326.
http://dx.doi.org/10.1039/a703984k---------- MLA ----------
Trevani, L.N., Calvo, E., Corti, H.R.
"High-temperature wall-tube cell- Design, characterization and results of mass transport phenomena"
. Journal of the Chemical Society - Faraday Transactions, vol. 93, no. 24, 1997, pp. 4319-4326.
http://dx.doi.org/10.1039/a703984k---------- VANCOUVER ----------
Trevani, L.N., Calvo, E., Corti, H.R. High-temperature wall-tube cell- Design, characterization and results of mass transport phenomena. 1997;93(24):4319-4326.
http://dx.doi.org/10.1039/a703984k