Search results for "Mo oxide"

showing 2 items of 2 documents

Electrodeposition and characterization of Mo oxide nanostructures

2015

Template electrodeposition has been used to grow uniform arrays of molybdenum oxide nanostructures in polycarbonate membrane. Several parameters have been investigated, like electrodeposition, time and solution pH. These parameters do not influence the nature of the deposit that always consists of mixed valence molybdenum oxides, whereas the nanostructure morphology changes with pH. In particular, at low pH (2.7), nanotubes are formed, whilst arrays of nanowires are obtained above pH 5.5. This change of morphology is likely due to H2 bubbles evolution during the electrochemical deposition, particularly occurring at low pH. It was found that fast removal of H2 bubbles through vigorous stirri…

lcsh:Computer engineering. Computer hardwaremetalNanostructure morphologieslcsh:TP155-156lcsh:TK7885-7895Molybdenum oxide metal Electrochemical deposition N-type conductivity Nanostructure morphologies Oxide nanostructures Photocurrent spectrum Photoelectrochemical measurements Photoelectrochemicals Polycarbonate membranesElectrochemical depositionPolycarbonate membranesMolybdenum oxidePhotoelectrochemical measurementsOxide nanostructuresSettore ING-IND/23 - Chimica Fisica ApplicataPhotocurrent spectrumPhotoelectrochemicalsN-type conductivitylcsh:Chemical engineeringMo oxide Core-shell nanostructures electrodeposition
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Template Electrochemical Growth and Properties of Mo Oxide Nanostructures

2014

This work is aimed at studying the growing process of nanostructures electrodeposited from molybdate aqueous solutions at different pH values into pores of polycarbonate membrane templates. The challenging issue was the opportunity to investigate a rather complex deposition process in a confined ambient, where electrochemical conditions are quite different from those usually established for deposition on a flat substrate. Nanostructures were grown from a bath containing Mo7O246– (NH4)6Mo7O24·4H2O) at different concentrations (50–100 g/L), at a constant cathodic current density of 2 mA/cm2 (electrodeposition area ∼8 cm2). Nanostructured deposit was characterized by XRD, EDS, Raman, XPS, and …

Materials scienceNanostructureOxidechemistry.chemical_elementNanotechnologyMolybdateElectrochemistrychemistry.chemical_compoundsymbols.namesakePhotoelectrochemistryX-ray photoelectron spectroscopyMo Oxide NanostructureXPSPhysical and Theoretical ChemistryRamanAqueous solutionTemplate Electrochemical SynthesiSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsGeneral EnergySettore ING-IND/23 - Chimica Fisica ApplicatachemistryChemical engineeringMolybdenumsymbolsRaman spectroscopy
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