“…Several works have been dedicated to graphene or fiber based electrodes A C C E P T E D M A N U S C R I P T [12,13], and to the growth of various pseudocapacitive metal oxides at the surface of graphene sheets or carbon nanofibers [7,9,[14][15][16][17][18][19]. Deposition can also be carried out by electro deposition, spin coating, electrophoretic, spray or inkjet depositions, for instance [8,13,[20][21][22][23][24].…”