| Summary: | 碩士 === 國立中興大學 === 精密工程學系所 === 106 === A self-pumping glucose oxidase enzymatic fuel cell (GEFC) with a new anodic catalyst which was modified by coating three different cross-linking agents such as TPA, GA, and TPP to form CNT-CC/[PEI/(GOx/TPA)], CNT-CC/[PEI/(GOx/TPP)] and CNT-CC/[PEI/(GOx/GA)] anode electrode, was fabricated, respectively. By using of these reagents as the chemical bonding method for enzyme immobilization, the amount of enzyme immobilized on the electrode and the enzyme stability are enhanced as well as improve the electrochemical performance of the self-pumping GEFC. To test the ability of GOx enzyme immobilized on the modified electrode and its chemical structure, the SEMs and the FTIR were successfully accomplished. In addition, the UV/Visible spectrophotometer was used in order to analyze the enzyme activities of the electrodes. New anodic electrodes (CNT-CC/[PEI/(GOx/TPA)], CNT-CC/[PEI/(GOx/TPP)] and CNT-CC/[PEI/(GOx/GA)]) affect the electrochemical performance of the self-pumping GEFC, were measured from the redox reaction current peak by CV curves. Moreover, the self-pumping GEFC performance test, results showed that the maximum power density of the cell with CNT-CC/[PEI/(GOx/TPA)] which is approximately 11% higher than that of the cell with CNT-CC/[PEI/(GOx/TPP)] and CNT-CC/[PEI/(GOx/GA)] (0.88 and 0.87 mW.cm-2, respectively) and 61% improvement compared to our previous research without adding the cross-linking agent (0.609 mW.cm-2) is 0.98 mW.cm-2. Finally, with a fixed volume of fuel supplied into the anode side, the output power density of the self-pumping GEBC was continuously measured for lasting 30min.
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