Search results for " linear sweep voltammetry"

showing 2 items of 2 documents

Ascorbic Acid determination using linear sweep voltammetry on flexible electrode modified with gold nanoparticles and reduced graphene oxide

2020

Indium tin oxide (ITO) coated on flexible polyethylene terephthalate (PET) substrate electrode was modified with reduced graphene oxide and gold nanoparticles by simple co-electrodeposition performed at -0.8 V vs SCE for 200 s. All samples were characterized by electron scan microscopy. The as prepared electrode was used as electrochemical sensor to selective detection of ascorbic acid using linear sweep voltammetry. Excellent results were obtained in a linear range from 20 to 150 µM of ascorbic acid with a limit of detection of about 3.1 µM (S/N=3.3). The sensors have a reproducibility of about 5.5% and also show high selectivity towards different interferents such as chlorine, calcium, ma…

Materials scienceElectrochemical sensors ascorbic acid food industry milk reduced graphene oxide gold nanoparticles linear sweep voltammetryfood industryOxide02 engineering and technology010402 general chemistry01 natural sciencesreduced graphene oxidelaw.inventionchemistry.chemical_compoundlawSettore ING-IND/17 - Impianti Industriali MeccanicimilkGrapheneelectrochemical sensors021001 nanoscience & nanotechnologyAscorbic acid0104 chemical sciencesIndium tin oxideElectrochemical gas sensorSettore ING-IND/23 - Chimica Fisica ApplicatachemistryColloidal goldgold nanoparticlesElectrodeLinear sweep voltammetryascorbic acid0210 nano-technologylinear sweep voltammetryNuclear chemistry
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Electrodeposition of CeO2 and Co-Doped CeO2 Nanotubes by Cyclic Anodization in Porous Alumina Membranes

2013

An anodic electrodeposition process is proposed to prepare CeO2 and Co-doped CeO2 nanotubes. Anodic alumina membrane is used as template and linear sweep voltammetry is employed to allow the formation of nanotubes without alumina dissolution. SEM micrographs showed large arrays of well defined and aligned NTs, which resulted to be crystalline soon after deposition according to XRD diffraction patterns and Raman Spectroscopy.

Fuel TechnologyMaterials scienceSettore ING-IND/23 - Chimica Fisica ApplicataChemical engineeringAnodizingAlumina membranesMaterials ChemistryElectrochemistrynanotubes Electrodeposition anodic alumina membranePorosityCo dopedAlumina dissolution Anodic alumina membranes Anodic electrodeposition Anodizations Large arrays Linear sweep voltammetry Porous alumina membranes SEM micrographs
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