Chemical Engineering Phd Student
Dissertation: Gas-Phase Control of Heteroatom Placement and Structure in Carbon Nanotube SynthesisAdvisor: Prof. Desirée L. PlataI studied the influence of different alkyne precursors on carbon nanotube (CNT) synthesis in a cold-walled chemical vapor deposition reactor, to determine whether the alkyne bonds incorporate directly into the CNT lattice and yield chemical and structural differences. I examined oxygen-functionalized alkynes for their ability to carry oxygen into the CNT lattice, and characterized the reactive environment via gas chromatography. When it was determined that the amount of oxygen incorporation was low, I compared different liquid- and vapor-based acid treatments for adding oxygen and chlorine to CNTs grown from different precursors, and integrated a life cycle impact assessment to understand the potential ecotoxicity and CO2 emissions associated with each process. Finally, I examined a series of catalysts and substituted alkyne precursors to determine whether precursor structure could influence CNT chirality, through development of a chiral identification algorithm that leveraged Raman spectral mapping with multiple lasers.Additionally, I held teaching fellow positions for Water Chemistry and Chemical Engineering Lab & Design.