YorkSpace has migrated to a new version of its software. Access our Help Resources to learn how to use the refreshed site. Contact diginit@yorku.ca if you have any questions about the migration.
 

Nanostructured Mixed Transition Metal Spinel Oxide as Efficient Electrocatalysts

Simple item page
dc.contributor.advisorMorin, Sylvie
dc.creatorThekkoot, Sreena Raju
dc.date.accessioned2016-09-20T18:55:17Z
dc.date.available2016-09-20T18:55:17Z
dc.date.copyright2015-02-04
dc.date.issued2016-09-20
dc.date.updated2016-09-20T18:55:17Z
dc.degree.disciplineChemistry
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractCuxCo3-xO4 films with x values ranging from 0 to 1 have prepared in order to optimize their electrocatalytic properties for the oxygen evolution reaction (OER). Two methods have been used for the preparation of CuxCo3-xO4, namely thermal decomposition and co-precipitation methods. The prepared materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and cyclic voltammetry (CV). The SEM analysis shows that the prepared electrodes were very porous and EDX analysis proved that a good correlation exists between stoichiometric and EDX-derived copper to cobalt ratios. The formation of spinel structure was confirmed by XRD analysis. Cyclic voltammetric experiments were carried out on electrodes prepared by thermal decomposition method. Cu0.75Co2.25O4 showed the lowest overpotential for OER. The electrodes were found to be active for the electroreduction of H2O2. However, at a given potential Co3O4 has achieved higher current density compared to copper substituted cobalt spinel.
dc.identifier.urihttp://hdl.handle.net/10315/32329
dc.language.isoen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectChemistry
dc.subject.keywordsNanostructure
dc.subject.keywordsSpinel
dc.subject.keywordsElectrocatalyst
dc.subject.keywordsCuxCo3-xO4
dc.subject.keywordsOxygen evolution
dc.subject.keywordsX-ray diffraction
dc.subject.keywordsXRD
dc.subject.keywordsScanning Electron Microscopy
dc.subject.keywordsSEM
dc.subject.keywordsEnergy Dispersive X-ray Spectroscopy
dc.subject.keywordsEDX
dc.subject.keywordsCyclic Voltammetry
dc.subject.keywordsCV
dc.subject.keywordsThermal decomposition
dc.subject.keywordsCo-precipitation
dc.subject.keywordsLattice parameter
dc.subject.keywordsOverpotential
dc.subject.keywordsElectroreduction
dc.subject.keywordsCobalt spinel
dc.subject.keywordsCatalytic activity
dc.subject.keywordsRoughness factor
dc.subject.keywordsMorphology
dc.subject.keywordsElectroreduction of hydrogen peroxide
dc.subject.keywordsX-ray diffractometer
dc.subject.keywordsCyclic voltammogram
dc.subject.keywordsCo3O4
dc.subject.keywordsCu0.25Co2.75O4
dc.subject.keywordsCu0.5Co2.5O4
dc.subject.keywordsCu0.75Co2.25O4
dc.subject.keywordsCuCo2O4
dc.subject.keywordsScan rate
dc.subject.keywordsElectrode
dc.subject.keywordsPotentiostat
dc.subject.keywordsNyquist plot
dc.subject.keywordsCalibration
dc.subject.keywordsOnset potential
dc.subject.keywordsError analysis
dc.subject.keywordsOxygen evolution reaction
dc.subject.keywordsOER
dc.subject.keywordsTransition metal oxide
dc.subject.keywordsMxCo3-xO4
dc.subject.keywordsDimensionally stable anode
dc.subject.keywordsDSA
dc.subject.keywordsCapacitive charging current
dc.subject.keywordsSweep rate
dc.subject.keywordsDouble layer capacitance
dc.subject.keywordsSpinel catalyst
dc.subject.keywordsCu-Co oxides
dc.subject.keywordsSurface morphology
dc.subject.keywordsCopper cobalt oxide
dc.subject.keywordsRietveld method
dc.subject.keywordsRedox potential
dc.subject.keywordsTrue catalytic activity
dc.titleNanostructured Mixed Transition Metal Spinel Oxide as Efficient Electrocatalysts
dc.typeElectronic Thesis or Dissertation

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Thekkoot_Sreena_R_2016_Masters.pdf
Size:
6.43 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
license.txt
Size:
1.83 KB
Format:
Plain Text
Description:
Download
No Thumbnail Available
Name:
YorkU_ETDlicense.txt
Size:
3.38 KB
Format:
Plain Text
Description:
Download

Collections

Chemistry

All items in the YorkSpace institutional repository are protected by copyright, with all rights reserved except where explicitly noted.