
372 Electrochemically Enabled Sustainability
As mentioned above, advanced catalysts with both low cost and high
catalytic activity towards both
and
redox reactions
should be investigated further for commercial application. Furthermore, the
effects on ohmic and concentration polarisation should not be ignored. For
example, nanocarbon electrode delivers high electrocatalytic activity due to
the large surface area, while the pore channels in this electrode are almost
on the nanometer size scale, which is inconvenient for the transfer of elec-
trolytes and leads to the increase of concentration polarisation. Therefore,
besides the ...