Glassy carbon electrode activation – A way towards highly active, reproducible and stable electrode surface

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918516" target="_blank" >RIV/60461373:22310/19:43918516 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/19:10405510
Result on the web
<a href="https://reader.elsevier.com/reader/sd/pii/S0013468619300799?token=C3D4DD9A5AB1461FA4604A736B381D198AE6B1149D664204BD1DF9EAA654C75F3D8BE94E9B51A0C8C91D743A98A13147" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0013468619300799?token=C3D4DD9A5AB1461FA4604A736B381D198AE6B1149D664204BD1DF9EAA654C75F3D8BE94E9B51A0C8C91D743A98A13147</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.electacta.2019.01.066" target="_blank" >10.1016/j.electacta.2019.01.066</a>

Result language
angličtina
Original language name
Glassy carbon electrode activation – A way towards highly active, reproducible and stable electrode surface
Original language description
Glassy carbon (GC) is one of the most often used carbon materials in laboratory practice. Despite the fact that its electrocatalytic properties are largely surface-state dependent, a standardised procedure for its activation is lacking. This work presents a detailed, systematic investigation of a GC electrode pre-treatment based on potential cycling in a strongly alkaline environment within optimised potential limits. The surface composition was followed by X-ray photoelectron spectroscopy. This allowed determination of the overall elemental surface composition as well as identification of important surface functional groups. Electrocatalytic activity of the activated electrodes was tested by using Fe 3+/2+ , Fe(CN) 6 3−/4- and benzoquinone/hydroquinone couples. A combination of spectroscopic and electrochemical information made it possible to establish a correlation between the electrode's electrocatalytic activity and its surface composition and to identify optimal activation conditions which resulted in a highly active, reproducible and stable electrode surface. It can be concluded that, due to its relative simplicity and efficiency, the present method has the potential to become a standard procedure of GC electrode activation. © 2019 Elsevier Ltd
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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