Reactor

CH₄ emissions

Current generation^c (coulombs)

Electron recovery (%)

Average conc. (ppm)

Evolved amount^a (nmol)

Suppression^b (%)

CH₄

Current

Others

A (no electrode)

72

706

-

-

14.7

0.0

85.3

B (SMFC mode)

71

713

−1.1

38

14.9

1.0

84.1

C (−200 mV vs Ag/AgCl)

148

1450

−105.5

310

30.3

8.4

61.4

D (+300 mV vs Ag/AgCl)

46

451

36.1

156

9.4

4.2

86.4