6533b828fe1ef96bd12890a8

RESEARCH PRODUCT

Vis/NIR spectroelectrochemical analysis of poly-(Azure A) on ITO electrode

David Giménez-romeroFrancisco VicenteJerónimo AgrisuelasJosé Juan García-jareño

subject

Aqueous solutionAnalytical chemistryAzure APotassium nitrateMolar absorptivitylcsh:ChemistryAbsorbancechemistry.chemical_compoundlcsh:Industrial electrochemistrylcsh:QD1-999chemistryElectrochromismElectrodeElectrochemistryCyclic voltammetrylcsh:TP250-261

description

Electrochromic behavior of poly-(Azure A) on indium–tin oxide electrode is analyzed in an aqueous potassium nitrate solution. The dependence of the absorbance on the applied potential during cyclic voltammograms proves very interesting at two selected characteristic wavelengths: at 925 nm, attributed to an intermediate species and another at 735 nm, attributed to the oxidized form of the polymer. Molar absorptivity coefficients for both species have been calculated from the relationship between current and the derivative of absorbance with respect to time. Voltammograms of formation of the intermediate are simulated from spectroelectrochemical results. Keywords: Poly-(Azure A), Spectroelectrochemistry, Molar absorptivity of intermediate

yearjournalcountryeditionlanguage
2006-04-01
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000236696300008&KeyUID=WOS:000236696300008