Preparation of mixed-valent manganese-vanadium oxide and Au nanoparticle modified graphene oxide nanosheets electrodes for the simultaneous determination of hydrazine and nitrite

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dc.contributor.authorAslışen B.
dc.contributor.authorKoçak S.
dc.date.accessioned2024-07-22T08:05:12Z
dc.date.available2024-07-22T08:05:12Z
dc.date.issued2022
dc.description.abstractIn this study, for the first time in the literature, simultaneous and individual determination of hydrazine and nitrite have performed by combining the triple electrocatalytic properties of electrochemically reduced graphene oxide (ERGO), multivalent metal oxide (MnOx-VOx) films and gold nanoparticles (AuNPs). Characterization studies of AuNP/MnOx-VOx/ERGO electrode were performed using electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM) methods. The determinations of hydrazine and nitrite in pH 8 BR buffer solution were studied using linear sweep voltammetry (LSV) and amperometry methods. The limit of detection (LOD) for simultaneous detection was 3.0 and 10.0 µM for hydrazine and nitrite, respectively, and the LOD for amperometric detection was 0.1 and 0.33 µM, respectively. AuNP/MnOx-VOx/ERGO electrode was tested for the determination of hydrazine and nitrite in river water and food samples, and this electrode provides a recovery of 91.0% to 113.0%. Also, the electrode has practical preparation, good repeatability, selectivity, accuracy. © 2021 Elsevier B.V.
dc.identifier.DOI-ID10.1016/j.jelechem.2021.115875
dc.identifier.issn15726657
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13044
dc.language.isoEnglish
dc.publisherElsevier B.V.
dc.subjectCyclic voltammetry
dc.subjectElectrochemical electrodes
dc.subjectElectrochemical impedance spectroscopy
dc.subjectGold compounds
dc.subjectGold nanoparticles
dc.subjectGraphene oxide
dc.subjectManganese oxide
dc.subjectMetal nanoparticles
dc.subjectOxide films
dc.subjectOxides
dc.subjectScanning electron microscopy
dc.subjectVanadium compounds
dc.subjectX ray photoelectron spectroscopy
dc.subjectAu nanoparticle
dc.subjectElectrocatalytic properties
dc.subjectElectrochemically reduced graphene
dc.subjectGraphene oxide nanosheet
dc.subjectHydrazine and nitrite
dc.subjectLimit of detection
dc.subjectMixed-valent
dc.subjectNanosheet electrodes
dc.subjectReduced graphene oxides
dc.subjectSimultaneous determinations
dc.subjectHydrazine
dc.titlePreparation of mixed-valent manganese-vanadium oxide and Au nanoparticle modified graphene oxide nanosheets electrodes for the simultaneous determination of hydrazine and nitrite
dc.typeArticle

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