Polyethyleneimine Modified Carbon Cloth Anode for Self-Pumping Enzymatic Glucose Biofuel Cell

Autor: Li Z. Huang, Ngoc Bich Duong, Jhang H. Wang, Hsiharng Yang
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Journal of Renewable Energy, Vol 2018 (2018)
Druh dokumentu: article
ISSN: 2314-4386
2314-4394
DOI: 10.1155/2018/4638254
Popis: This paper proposes a simplified process that immobilizes enzymes onto carbon cloth electrodes to increase biofuel cell functionality. Polyethyleneimine (PEI) is used to modify carbon cloth electrodes to reduce the processing time and increase self-pumping enzymatic glucose biofuel cell (self-pumping EGBC) electricity. PEI is usually used in biochemical engineering gene transfection as GOx support to enhance enzyme immobilization. PEI is a good candidate for increasing enzymatic biofuel cell (EBC) redox current. PEI and GOx have been successfully immobilized onto carbon cloth electrodes through FT-IR analysis. A UV/Vis spectrophotometer was used to investigate the best PEI support concentration. PEI was proven to improve redox current by cyclic voltammetry analysis. The results show that the GOx/PEI electrode has excellent hydrophilicity on the GOx/PEI electrode surface using contact angle measurement. The optical and electrochemical analysis result shows that GOx/PEI was successfully immobilized onto carbon cloth electrodes. Experimental analysis showed that self-pumping EGBC achieved a power output of 0.609 mW/cm2 (126.9 mW/cm3). PEI contributes to the shortening of the process from a few hours to 5–10 minutes and enhances GOx fuel cell performance.
Databáze: Directory of Open Access Journals
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