Flash Graphene Synthesis: Optimization, Scaling, and Thermodynamics

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dc.contributor.advisorTour, James Men_US
dc.creatorEddy, Lucasen_US
dc.date.accessioned2024-01-24T21:58:12Zen_US
dc.date.available2024-01-24T21:58:12Zen_US
dc.date.created2023-12en_US
dc.date.issued2023-11-09en_US
dc.date.submittedDecember 2023en_US
dc.date.updated2024-01-24T21:58:12Zen_US
dc.description.abstractFlash Joule heating has been widely used as an ultrafast, scalable, and versatile synthesis method, most prominently in the synthesis of flash graphene. Traditional methods of graphene synthesis involve purely chemical or thermal means and are far more energy-intensive and far less scalable than flash Joule heating. Herein, we demonstrate kilogram-scale flash graphene synthesis using an automated flash Joule heater. We implement a pulse width modulation system to improve graphene quality and uniformity while scaling up to larger batch sizes. We furthermore report evidence that the flash Joule heating synthesis of graphene is an electrothermal process in which the presence of charge and the resulting electric field inside the graphene precursor facilitates graphene synthesis by lowering the activation energy of the reaction. We present both through experiment and theory the thermodynamic values of the flash Joule heating transition from amorphous carbon feedstocks, to turbostratic graphene, to finally ordered graphene and graphite. We finally compare the energy, environmental, and monetary costs of flash Joule heating to other scalable methods for graphene production via life cycle and technoeconomic assessments.en_US
dc.embargo.lift2024-06-01en_US
dc.embargo.terms2024-06-01en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationEddy, Lucas. "Flash Graphene Synthesis: Optimization, Scaling, and Thermodynamics." (2023). Master's thesis, Rice University. https://hdl.handle.net/1911/115402en_US
dc.identifier.urihttps://hdl.handle.net/1911/115402en_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.subjectlife cycle assessmenten_US
dc.subjectelectric fielden_US
dc.subjectkilogram scaleen_US
dc.titleFlash Graphene Synthesis: Optimization, Scaling, and Thermodynamicsen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentApplied Physicsen_US
thesis.degree.disciplineApplied Physics/Chemistryen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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