Evaluation of the electrochemically active surface area of microelectrodes by capacitive and faradaic currents
(English)Manuscript (preprint) (Other academic)
Two methods to estimate the electrochemically active surface area (EASA) of microelectrodes were compared. One is based on electrocapacitive measurements and the other on faradaic measuements. A systematic study revealed a strong influence of the surface roughness and the electrolyte concentration on the EASA of microelectrodes estimated from the electrocapacitive measurements, yielding a lack of reliability compared to the faradaic method.
Electrochemically active surface area, microelectrode, microband, roughness, capacitive process, faradaic process
Chemical Sciences Chemical Engineering Chemical Process Engineering
IdentifiersURN: urn:nbn:se:liu:diva-125240OAI: oai:DiVA.org:liu-125240DiVA: diva2:903863