作者: Fabien Giroud , Chantal Gondran , Karine Gorgy , Aymeric Pellissier , François Lenouvel
DOI: 10.1016/J.JPOWSOUR.2010.08.076
关键词: Inorganic chemistry 、 Dialysis (biochemistry) 、 Urease 、 Dialysis tubing 、 Quinhydrone electrode 、 Substrate (chemistry) 、 Urea 、 Electrode 、 Glucose oxidase 、 Chemistry
摘要: We report on an alternative concept of biofuelcell functioning based the unconventional use enzymes to create apH difference generating a potential between electrodes soaked in quinhydrone solutions. The electrode and solution were confined dialysis bag placed into compartment containing either glucose oxidase catalase for biocathode or urease bioanode. In presence 0.4 mol L−1 urea, enzyme reactions generate 3.55, both compartments being separated by agar-agar wall. resulting exhibits open-circuit voltage maximum power 208 mV 30.6 μW, respectively, without immobilization electrical connection involved enzymes. addition, this was able provide continuously10 μA during 23 h, producing 0.133 J 0.828 C. A similar configuration only bags also developed. graphite disk elaborated mechanical compression particles quinhydrone, itself another solution. at saturating substrate conditions are 7.6 μW 157 mV, respectively.