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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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THE SCHOOL OF MATERIALS SCIENCE AND ENGINEERING
GEORGIA INSTITUTE OF TECHNOLOGY
Under the provisions of the regulations for the degree
MASTER OF SCIENCE
on Friday, July 21, 2017
11:30 AM
in MRDC 2405
will be held the
THESIS DEFENSE
for
Tyler Colling
"Chip Scale Carbon Nanotube Based Supercapacitors and Ionic Liquid Electrolytes"
Committee Members:
Dr. W. Jud Ready, Advisor, MSE
Dr. Valerie Scott, NASA JPL
Dr. Eric Vogel, MSE
Abstract:
Efficient and clean energy storage is being demanded for use in a variety of technologies. In particular, the internet of things requires chip scale, high energy and power density energy storage with high cyclability. Batteries do not meet this need due to a lack of power density and poor cyclability. Capacitors do not have the required energy density. This separation of storage capabilities creates a need for supercapacitors, a technology that maintains high energy density, power density, and cyclability. Supercapacitors can utilize two storage mechanisms, the Helmholtz double layer (non-faradaic) and pseudocapacitance (faradaic). In this work, a chip scale, silicon based, embedded carbon nanotube based electrode is presented with four functionalizatons (TiOx, TiNx, ZrOx, ZrNx), introduced through atomic layer deposition, and five ionic liquid electrolytes. Each sample was tested with cyclic voltammetry, galvanostatic methods, and impedance spectroscopy to measure the capacitance and equivalent series resistance.
