A rotating rod electrode disk as an alternative to the rotating disk electrode for medium-temperature electrolytes, Part II: An example of the application in an investigation of the oxygen reduction reaction on a Pt/C catalyst by the thin film method in hot concentrated H3PO4

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43913671" target="_blank" >RIV/60461373:22310/17:43913671 - isvavai.cz</a>
Result on the web
<a href="https://ac.els-cdn.com/S0013468617311349/1-s2.0-S0013468617311349-main.pdf?_tid=410972a8-04f2-11e8-ab0a-00000aab0f26&acdnat=1517230096_c5f70e19c9c5e27543fedbd4944cba7e" target="_blank" >https://ac.els-cdn.com/S0013468617311349/1-s2.0-S0013468617311349-main.pdf?_tid=410972a8-04f2-11e8-ab0a-00000aab0f26&acdnat=1517230096_c5f70e19c9c5e27543fedbd4944cba7e</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.electacta.2017.05.143" target="_blank" >10.1016/j.electacta.2017.05.143</a>

Result language
angličtina
Original language name
A rotating rod electrode disk as an alternative to the rotating disk electrode for medium-temperature electrolytes, Part II: An example of the application in an investigation of the oxygen reduction reaction on a Pt/C catalyst by the thin film method in hot concentrated H3PO4
Original language description
In this paper a novel and simple method to determine the O-2 reduction reaction activity of Pt/C in 99% H3PO4 at a temperature of 160 degrees C using a well-established thin film procedure is reported. It utilizes a disk of rotating rod made of glassy carbon as a working hydrodynamic electrode. By introducing polybenzimidazole as a thin film polymer binder, a modified rotating rod electrode disk (the cylindrical part is electrochemically inactive under the conditions used) suitable for measurements in hot concentrated H3PO4 was obtained. Using this electrode together with the Koutecky-Levich equation modified for rotating rod electrode hydrodynamics, the kinetics of the oxygen reduction reaction and mass transfer parameters of O-2 in 99% H3PO4 at 160 degrees C were successfully determined. The presented method can be easily used to determine the activity of various catalysts under conditions which preclude the use of a conventional rotating disk electrode.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project
<a href="/en/project/7HX13002" target="_blank" >7HX13002: Understanding the Degradation Mechanisms of a High Temperature PEMFC Stack and Optimization of the Individual Components</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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