Figure 6.
a) Cyclic voltammograms and b) iR‐corrected Nyquist plots for N2‐ and CH4‐saturated 0.1 m Na2CO3 solution over a NiO–ZrO2 electrocatalyst. c) Reaction mechanism for the formation of methanol from CH4 and carbonate ions. d) Formation of the C—C bond in ethanol. e) Proposed reaction pathways for the activation of CH4 by carbonate ions. f) The electrochemical cell that was constructed in this work. Reproduced with permission.[ 74 ] Copyright 2013, The Electrochemical Society.