About: Electrochemical behaviour of hexacyanoferrate(II)/(III) and ferrocene/ferricinium in lyotropic liquid crystals of polyoxyethylene (10) cetylether (Brij 56)

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About: Electrochemical behaviour of hexacyanoferrate(II)/(III) and ferrocene/ferricinium in lyotropic liquid crystals of polyoxyethylene (10) cetylether (Brij 56) Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The conductivity of a lyotropic liquid crystal medium (LLC) consisting of 50:50 wt.% Brij 56 (R) and 0.5 M aqueous KCl was found to be five times lower than the purely aqueous solution. Electrochemical properties of potassium hexacyanoferrate(II)/(III) and ferrocene/ferricinium in the LLC were examined by cyclic voltammetry and chronoamperometry on platinum foil and microdisk electrodes. Ferricinium reduction, while complicated in water by precipitation of ferrocene. showed solution behaviour and normal diffusion control in the liquid crystal. Effective diffusion coefficients of ferrocene and ferrocinium in the lyotropic liquid crystal were found to be further reduced to 4-5 x 10(-8) cm(2) s(-1). The lower diffusion coefficients compared with those in liquid solvents were attributed to restricted mobility and channel size effects in the LLC. The results are relevant to the design of electrochemical syntheses using LLC as nanostructured templates or as amphiphilic solvents. The conductivity of a lyotropic liquid crystal medium (LLC) consisting of 50:50 wt.% Brij 56 (R) and 0.5 M aqueous KCl was found to be five times lower than the purely aqueous solution. Electrochemical properties of potassium hexacyanoferrate(II)/(III) and ferrocene/ferricinium in the LLC were examined by cyclic voltammetry and chronoamperometry on platinum foil and microdisk electrodes. Ferricinium reduction, while complicated in water by precipitation of ferrocene. showed solution behaviour and normal diffusion control in the liquid crystal. Effective diffusion coefficients of ferrocene and ferrocinium in the lyotropic liquid crystal were found to be further reduced to 4-5 x 10(-8) cm(2) s(-1). The lower diffusion coefficients compared with those in liquid solvents were attributed to restricted mobility and channel size effects in the LLC. The results are relevant to the design of electrochemical syntheses using LLC as nanostructured templates or as amphiphilic solvents. (en)
Title	Electrochemical behaviour of hexacyanoferrate(II)/(III) and ferrocene/ferricinium in lyotropic liquid crystals of polyoxyethylene (10) cetylether (Brij 56) Electrochemical behaviour of hexacyanoferrate(II)/(III) and ferrocene/ferricinium in lyotropic liquid crystals of polyoxyethylene (10) cetylether (Brij 56) (en)
skos:prefLabel	Electrochemical behaviour of hexacyanoferrate(II)/(III) and ferrocene/ferricinium in lyotropic liquid crystals of polyoxyethylene (10) cetylether (Brij 56) Electrochemical behaviour of hexacyanoferrate(II)/(III) and ferrocene/ferricinium in lyotropic liquid crystals of polyoxyethylene (10) cetylether (Brij 56) (en)
skos:notation	RIV/61388980:_____/10:00357522!RIV11-MSM-61388980
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KJB200320801), P(LC523), Z(AV0Z40320502)
http://linked.open...iv/cisloPeriodika	1-2
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Uhlířová, Tereza Reiter, Jakub
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 anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	256696
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/10:00357522
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	lyotropic liquid crystal; ferrocene; diffusion coefficient; Brij 56; nanostructure; electrodeposition (en)
http://linked.open.../riv/klicoveSlovo	Brij 56 lyotropic liquid crystal diffusion coefficient ferrocene electrodeposition nanostructure
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[A8BCC7B3D15A]
http://linked.open...i/riv/nazevZdroje	Journal of Electroanalytical Chemistry
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Nanostructured doped oxides prepared from the medium of lyotropic liquid crystals Perspective inorganic materials
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	646
http://linked.open...iv/tvurceVysledku	Reiter, Jakub Uhlířová, Tereza Owen, J. R.
http://linked.open...ain/vavai/riv/wos	000280622800003
http://linked.open...n/vavai/riv/zamer	Design, syntéza a charakterizace klastrů, kompozitů, komplexů a dalších sloučenin na bázi anorganických látek; mechanismy a kinetika jejich interakcí
issn	1572-6657
number of pages	6 (xsd:int)

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