Analytic and Numerical Modeling of Glucose-fueled Enzymatic Biofuel Cell Performance

摘要

Analytic and numerical calculation methods for glucose-fueled enzymatic biofuel cell performance are presented. The output voltage as a function of output current density is formulated by considering the steady-state flux balance, mass transport, enzyme reactions, and electrochemical kinetics. Resulting transcendental equation is numerically solved to determine output voltage at a given current density. The equation is approximated to give an explicit solution, leading to analytic formulae of the cell output performance. Comparison with an experimental data shows excellent agreement. Our method provides a handy but powerful tool for cell design optimization and performance prediction.