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Electrodeposition of highly active lithium cobalt oxide thin film anodes in platinum metal group-free photoelectrochemical cells
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Kashi, Ajay R.. Electrodeposition of highly active lithium cobalt oxide thin film anodes in platinum metal group-free photoelectrochemical cells. Retrieved from https://doi.org/doi:10.7282/T3XD154V

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TitleElectrodeposition of highly active lithium cobalt oxide thin film anodes in platinum metal group-free photoelectrochemical cells
NameKashi, Ajay R. (author); Dismukes, G. Charles (chair); Celik, Fuat (internal member); Asefa, Tewodros (internal member); Rutgers University; School of Graduate Studies
Date Created2018
Other Date2018-05 (degree)
SubjectChemical and Biochemical Engineering, Thin films, Renewable energy
Extent1 online resource (viii, 42 p. : ill.)
DescriptionIn the development of high-performance, commercially-scalable photoelectrochemical cells (PECs) for solar-driven hydrogen production, effective and low-cost anodes must be engineered for long-term operation in alkaline solution. Lithium cobalt oxide (LiCoO2) has been studied as a highly active and stable catalyst for the anodic oxygen evolution reaction (OER) in its delithiated cubic spinel polymorph, LiCo2O4. Drawing inspiration from the dimensionally stabilized anode (DSA) configuration used for continuous electrochemical chlorine generation, a thin film of LixCoO2 has been electrodeposited onto a passivated TiOx/Ti support for functional integration as the dark anode in the PEC device. Kinetic performance as evaluated by cyclic and linear sweep voltammetry resulted in geometric current densities of 10 mA/cm2 (corresponding to 10% photoelectrochemical conversion) achieved at 430 mV overpotential. Long-term stability measurements evaluated at 10 mA/cm2 demonstrate continuous operation for up to 13 days with minimal loss in activity. Characterization via x-ray diffraction, x-ray photoelectron spectroscopy, and scanning electron microscopy coupled with electron dispersive spectroscopy give insight into the structure-property relationships responsible for the measured high electrochemical performance.
NoteM.S.
NoteIncludes bibliographical references
Noteby Ajay R. Kashi
Genretheses, ETD graduate
Persistent URLhttps://doi.org/doi:10.7282/T3XD154V
Languageeng
CollectionSchool of Graduate Studies Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
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