About: Effective Surface Area of Electrochemical Sensors

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The article compares the determination of an SPE (Screen Printed Electrodes) electrochemical active surface (AS) by the analysis of cyclic voltammogram in ferro-ferricyanide using Koutecky equation and by confocal and electron microscopy. SPE reliability is influenced by mass transport of analyte to active electrode surface while the physical properties of SPE are reproducible and stable. The electrode reaction involves the upper layer of SPE. The AS is the same as the geometrical area. Other methods set the active/geometrical area relation to 2,03 +/- 0,04 (gold working electrode) and 4,35 +/- 0,08 (platinum working electrode). It is demonstrated that nanostructures on working electrode surface can be efficient at high frequencies (> 10 kHz). The active area of SPE determined by scanning electron microscopy or optical measurement exhibits a standard deviation lower than 2%. It proves SPE be reliable and precise electrochemical device under optimal hydrodynamic conditions. The article compares the determination of an SPE (Screen Printed Electrodes) electrochemical active surface (AS) by the analysis of cyclic voltammogram in ferro-ferricyanide using Koutecky equation and by confocal and electron microscopy. SPE reliability is influenced by mass transport of analyte to active electrode surface while the physical properties of SPE are reproducible and stable. The electrode reaction involves the upper layer of SPE. The AS is the same as the geometrical area. Other methods set the active/geometrical area relation to 2,03 +/- 0,04 (gold working electrode) and 4,35 +/- 0,08 (platinum working electrode). It is demonstrated that nanostructures on working electrode surface can be efficient at high frequencies (> 10 kHz). The active area of SPE determined by scanning electron microscopy or optical measurement exhibits a standard deviation lower than 2%. It proves SPE be reliable and precise electrochemical device under optimal hydrodynamic conditions. (en)
Title	Effective Surface Area of Electrochemical Sensors Effective Surface Area of Electrochemical Sensors (en)
skos:prefLabel	Effective Surface Area of Electrochemical Sensors Effective Surface Area of Electrochemical Sensors (en)
skos:notation	RIV/68081731:_____/14:00431823!RIV15-MPO-68081731
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(FR-TI1/076), P(FR-TI1/118)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Flodrová, Eva Neděla, Vilém
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	13640
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/14:00431823
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	scanning electron microscopy; glassy-carbon electrode; gold electrodes; biosensors (en)
http://linked.open.../riv/klicoveSlovo	glassy-carbon electrode biosensors scanning electron microscopy gold electrodes
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[144FB0E0DAD3]
http://linked.open...i/riv/nazevZdroje	Journal of the Electrochemical Society
http://linked.open...in/vavai/riv/obor	JB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	New electrochemical senosrs for heavy metal detection New generation of electrochemical sensors and biosensors using thin modificated DLC layers
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	161
http://linked.open...iv/tvurceVysledku	Neděla, Vilém Flodrová, Eva Krejčí, J. Plička, R. Sajdlová, Z. Vránová, H. Šejnohová, R.
http://linked.open...ain/vavai/riv/wos	000339508600060
issn	0013-4651
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1149/2.091406jes

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