Sökning: onr:"swepub:oai:DiVA.org:uu-395693" >
Evaluation of the E...
Evaluation of the Electrochemically Active Surface Area of Microelectrodes by Capacitive and Faradaic Currents
-
- Sekretaryova, Alina N. (författare)
- Linköpings universitet,Uppsala universitet,Molekylär biomimetik,Linkoping Univ, Dept Phys Chem & Biol, S-58183 Linkoping, Sweden,Institutionen för fysik, kemi och biologi,Tekniska fakulteten,Uppsala Univ, Sweden
-
- Vagin, Mikhail (författare)
- Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten
-
- Volkov, Anton, 1989- (författare)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
-
visa fler...
-
- Zozoulenko, Igor (författare)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
-
- Eriksson, Mats (författare)
- Linköpings universitet,Sensor- och aktuatorsystem,Tekniska fakulteten
-
visa färre...
-
(creator_code:org_t)
- 2019-08-29
- 2019
- Engelska.
-
Ingår i: ChemElectroChem. - : WILEY-V C H VERLAG GMBH. - 2196-0216. ; 6:17, s. 4411-4417
- Relaterad länk:
-
http://liu.diva-port...
-
visa fler...
-
https://liu.diva-por... (primary) (Raw object)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- Two experimental methods to estimate the electrochemically active surface area (EASA) of microelectrodes are investigated. One method is based on electrocapacitive measurements and depends significantly on the surface roughness as well as on other parameters. The other method is based on faradaic current measurements and depends on the geometric surface area. The experimental results are supplemented with numerical modeling of electrodes with different surface roughness. A systematic study reveals a strong influence of the scale and arrangement of the surface roughness, the measurement potential and the electrolyte concentration on the EASA of microelectrodes estimated from the electrocapacitive measurements. The results show that electrocapacitive measurements should not be used to estimate the faradaic EASA of microelectrodes with a non-negligible surface roughness.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- electrochemically active surface area
- microelectrode
- capacitive current
- faradaic current
- numerical modeling
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas