Engineered Nanomaterials for Energy Harvesting and Storage Applications

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dc.contributor.advisorAjayan, Pulickel Men_US
dc.contributor.committeeMemberVajtai, Roberten_US
dc.contributor.committeeMemberBiswal, Sibani Len_US
dc.contributor.committeeMemberArava, Leela Mohana Reddyen_US
dc.creatorGullapalli, Hemtejen_US
dc.date.accessioned2016-01-14T22:05:13Zen_US
dc.date.available2016-01-14T22:05:13Zen_US
dc.date.created2014-12en_US
dc.date.issued2014-11-03en_US
dc.date.submittedDecember 2014en_US
dc.date.updated2016-01-14T22:05:13Zen_US
dc.description.abstractEnergy harvesting and storage are independent mechanisms, each having their own significance in the energy cycle. Energy is generally harvested from temperature variations, mechanical vibrations and other phenomena which are inherently sporadic in nature, harvested energy stands a better chance of efficient utilization if it can be stored and used later, depending on the demand. In essence a comprehensive device that can harness power from surrounding environment and provide a steady and reliable source of energy would be ideal. Towards realizing such a system, for the harvesting component, a piezoelectric nano-composite material consisting of ZnO nanostructures embedded into the matrix of ‘Paper’ has been developed. Providing a flexible backbone to a brittle material makes it a robust architecture. Energy harvesting by scavenging both mechanical and thermal fluctuations using this flexible nano-composite is discussed in this thesis. On the energy storage front, Graphene based materials developed with a focus towards realizing ultra-thin lithium ion batteries and supercapacitors are introduced. Efforts for enhancing the energy storage performance of such graphitic carbon are detailed. Increasing the rate capability by direct CVD synthesis of graphene on current collectors, enhancing its electrochemical capacity through doping and engineering 3D metallic structures to increase the areal energy density have been studied.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationGullapalli, Hemtej. "Engineered Nanomaterials for Energy Harvesting and Storage Applications." (2014) Diss., Rice University. <a href="https://hdl.handle.net/1911/87828">https://hdl.handle.net/1911/87828</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/87828en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectGrapheneen_US
dc.subjectLithium ion batteryen_US
dc.subjectEnergy harvestingen_US
dc.subjectNitrogen dopeden_US
dc.subjectFluorine etcheden_US
dc.subject3D anodeen_US
dc.subjectStainless steelen_US
dc.subjectZinc Oxideen_US
dc.subjectPorous current collectoren_US
dc.titleEngineered Nanomaterials for Energy Harvesting and Storage Applicationsen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentMaterials Science and NanoEngineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US
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