Abstract: We report the temperature, pH, glucose concentration, NaCl concentration, and operating atmosphere dependence of the power output of a compartment-less miniature glucose-O2 biofuel cell, comprised only of two bioelectrocatalyst-coated carbon fibers, each of 7 ím diameter and 2 cm length (Mano, N.; Mao, F.; Heller, A. J. Am. Chem. Soc. 2002, 124, 12962). The bioelectrocatalyst of…
We describe a biofuel cell operating at 37 °C in a glucosecontaining, aerated, pH 7.2, physiological buffer solution (0.14 MNaCl, 20 mM phosphate). It consists of two 7-ím diameter, 2-cm long, 0.44 mm2, electrocatalyst-coated, carbon fibers. Glucose is electrooxidized to gluconolactone on the anode fiber, and dissolved O2 is electroreduced to water on the cathode fiber. When the cell operate…