Preparation of Molecularly Imprinted Poly(ethylene-co-vinyl alcohol) Coated Electrodes for Chlorophyll and Enzymatic Fuel Cells

• Main Authors: Ching-Ping Shih, 史經平
• Other Authors: Hung-Yin Lin
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/77273872828643442687

碩士 === 國立高雄大學 === 化學工程及材料工程學系碩士班 === 103 === In this research, chlorophyll and enzymes (Glucose oxidase and Laccase) were employed to immobilize on the imprinted surface of poly(ethylene-co-vinyl alcohol)(EVAL). EVALs containing different mole ratios of ethylene were then used to compare the readsorption for the optimization of molecular imprinting. The most appropriate imprinting parameters of Chlorophyll is 44 mole% 0.1wt% and 32 mole% 0.1wt% for enzymes. For confirming with imprint theories, the properties of EVAL films: microstructures, roughness, elements containing were analyzed and compared when before and after the processes of removing targets. We found that templates became rougher after removing the targets and smoother when rebinding, and on the SEM images can observe the imprinted cavens obviously. Furthermore, the adhesive force of cavens which cause by enzymes is 0.52 nN, higher than 0.39 nN by Chlorophyll. The open circuit voltage (OCV) and power of chlorophyll fuel cells were enhanced from 0.26 V and 0.46 mW/m2 to 0.63 V and 1.53 mW/m2, increased about 3.3 fold. The enzymatic fuel cells were enhanced from 0.20 V and 0.42 mW/m2 to 0.67 V and 1.97 mW/m2, increased 4.7 fold. The results shows that molecularly imprinted electrodes can increasing the output efficiency of fuel cells successfully.