Porous electrodes have been of interest for many years. Their
main applications are supercapacitors, electrocatalysis and elec-
troanalysis [1– 3]. High electroactive surface area allows for
improving the detection of analytes. Indeed, creating bigger area
of contact between an electrode and a solution can enhance the
sensitivity of the analytical method, i.e. by preconcentration of the
analyte on the electrode material itself or on a deposited layer [4] ,
and gives the opportunity to improve the detection selectivity, i.e.
by lowering the detection potential of important analytes such as
H2 O2 or NADH [5] .