Development and Evaluation of a Nanoporous Iron (Hydr)oxide Electrode for Phosphate Sensing

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMoss, Rachel E.
dc.creatorJackowski, Jennifer J.
dc.creatorCastilho, Michelle de Souza
dc.creatorAnderson, Marc A.
dc.date2014-05-20T15:30:38Z
dc.date2016-10-25T18:06:11Z
dc.date2014-05-20T15:30:38Z
dc.date2016-10-25T18:06:11Z
dc.date2011-07-01
dc.date.accessioned2017-04-06T00:17:59Z
dc.date.available2017-04-06T00:17:59Z
dc.identifierElectroanalysis. Weinheim: Wiley-v C H Verlag Gmbh, v. 23, n. 7, p. 1718-1725, 2011.
dc.identifier1040-0397
dc.identifierhttp://hdl.handle.net/11449/39957
dc.identifierhttp://acervodigital.unesp.br/handle/11449/39957
dc.identifier10.1002/elan.201100118
dc.identifierWOS:000292967900026
dc.identifierhttp://dx.doi.org/10.1002/elan.201100118
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/882786
dc.descriptionNanoporous iron (hydr) oxide electrodes are evaluated as phosphate sensors using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The intensity of the reduction peak current (I-cp) of the ferrihydrite working electrode is tied to phosphate concentration at low pH; however, a hematite electrode combined with the use of EIS provided reliable sensing data at multiple pH values. Nanoporous hematite working electrodes produced an impedance phase component (theta) that shifts with increasing phosphate, and, at chosen frequencies, theta values were fitted for the range 1 nM to 0.1 mM phosphate at pH 4 and pH 7 in 5 mM NaClO4.
dc.languageeng
dc.publisherWiley-v C H Verlag Gmbh
dc.relationElectroanalysis
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectIon-selective electrodes
dc.subjectIron (hydr)oxides
dc.subjectNanoporous coatings
dc.subjectPhosphate sensor
dc.subjectSol-gel methods
dc.titleDevelopment and Evaluation of a Nanoporous Iron (Hydr)oxide Electrode for Phosphate Sensing
dc.typeOtro


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