Liu and Logan $22$ evaluated the performance of a single$-$chamber MFC design using an air cathode, operated in batch mode, with anode $($and PEM$)$ surface area of $7\mathrm{.}065{10}^{-4}{m}^2,$ anode chamber volume of $0\mathrm{.}028L,1000$ resistor, with and without a PEM, and $0\mathrm{.}6\frac{g}{L}$ glucose media. For the experiments with the PEM, the voltage output increased quickly to $0\mathrm{.}35V$ and slowly dropped to $0\mathrm{.}25V$ over $95hr,$ for an average of $0\mathrm{.}30$ V$.$ Without the P'EM, the maximum voltage increased suddenly to $0\mathrm{.}52V$ but then decreased rapidly to $<mn\; id="EditorElement\_1065009">0</mn><mn\; id="EditorElement\_1065010">.</mn><mn\; id="EditorElement\_1065011">0</mn><mn\; id="EditorElement\_1065012">4</mn><mi\; id="EditorElement\_1065014">V</mi>$ after $15hr.$ The basic power calculations for the glucose experiments with and without PEM, and oxygen diffusion rate with PEM are as follows:

Faraday's constant is $96485\frac{C}{m}ol$ electron