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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/17179

Title: Fluid Coke Derived Activated Carbon as Electrode Material for Electrochemical double Layer Capacitor
Authors: Hu, Chijuan
Advisor: Jia, Charles Q.
Kirk, Donald W.
Department: Chemical Engineering and Applied Chemistry
Keywords: fluid coke
activated carbon
electrochemical double layer capacitor
capacitance
cyclic voltammetry
constant current charge/discharge
Issue Date: 24-Feb-2009
Abstract: An electrochemical double-layer capacitor (EDLC) is a potential buffer for current power and energy supply. In this work, activated carbon derived from fluid coke as a brand new electrode material was studied due to its high specific surface area (SSA) and large portion of mesopores. A suitable electrode material formula, current collector, and cell configuration were investigated to fabricate a testable system and ensure the reproducibility of measurements. Cyclic voltammetry (CV) and constant current charge/discharge (CD) techniques were used to characterize the performance of the electrode material, as well as to study its fundamental behaviour. A new procedure was established for quantifying the capacitance (Cc) of EDLC from CV which isolates the effect of internal resistance on the measured capacitance (CM). The specific capacitance of single electrode made of activated carbon (~1900 m2/g) with approximately 80% mesopores and macropores was able to reach 180 F/g at scan rate of 0.5mV/s.
URI: http://hdl.handle.net/1807/17179
Appears in Collections:Master
Department of Chemical Engineering and Applied Chemistry - Master theses

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