Novel nanocomposite material for supercapacitor applications

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dc.contributor.author Fawaz, Wissam
dc.date.accessioned 2017-12-04T09:17:48Z
dc.date.available 2017-12-04T09:17:48Z
dc.date.copyright 2014 en_US
dc.date.issued 2017-12-04
dc.identifier.uri http://hdl.handle.net/10725/6702
dc.description.abstract With the rapid development of electric-based transportation and introduction of various hybrids, plug-in and full electric vehicles, there is an urgent need to develop a high power energy storage system to complement the high energy density batteries, to extend the range and life of HEVs and EVs. In this work, we have developed and optimized a unique composite material that can serve as electrode materials for high power supercapacitor for various applications. The material is prepared form high surface area graphene-like carbon made from exfoliated graphite flakes through thermal shock process. The expanded graphite then is mixed with functionalized stacked cone carbon nano-fiber. The mixture was impregnated with nano size manganese oxide, MnO2, to further enhance the energy storage density and the high rate capability of the composite material. The formulation of our composite mixture contains, [(graphene) – (carbon nano-fiber), (MnO 2)]. The optimized composite mixture was impregnated into metal foam that served as a current collector in an electrochemical cell. The X-ray diffraction of the composite has shown formation mixed phases of MnO2, and SEM results indicate uniform deposition of oxide on graphene-like carbon and on carbon nano-fibers. The electrochemical performance of the composite was tested for its energy storage capacity (F/g) and for its high rate capability using cyclic voltammetry. The stability of the composite was also tested during multiple charge-discharge cycles. The composite electrode provides exceptionally high charge storage capacity (over 300 F/g), with high charge-discharge cycling stability over 500 deep cycles. Further optimization and scale – up of the composite material is in progress. en_US
dc.language.iso en en_US
dc.title Novel nanocomposite material for supercapacitor applications en_US
dc.type Thesis en_US
dc.author.degree PHD en_US
dc.author.school SOE en_US
dc.author.idnumber 200602957 en_US
dc.author.department Electrical And Computer Engineering en_US
dc.description.embargo N/A en_US
dc.description.physdesc viii, 76 p: ill en_US
dc.author.advisor Nazri, Gholam-Abbas en_US
dc.keywords Pure sciences en_US
dc.keywords Applied sciences en_US
dc.keywords Alternative energy en_US
dc.keywords Electrochemistry en_US
dc.keywords Energy storage en_US
dc.keywords Nano composites en_US
dc.keywords Supercapacitor en_US
dc.description.bibliographiccitations Includes bibliographical references en_US
dc.identifier.ctation Fawaz, W. (2014). Novel nanocomposite material for supercapacitor applications. Wayne State University. en_US
dc.author.email wissam.fawaz@lau.edu.lb en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://search.proquest.com/docview/1615030374?pq-origsite=gscholar en_US
dc.publisher.institution Wayne State University en_US
dc.author.affiliation Lebanese American University en_US

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