In actuality, the energetic demand is increase however the research of new sources of energies is beginning to satisfice the energy’s needs. The cleaning energies ´re alternative to solve this demand energetic, to get energy without involving the burning of fossil fuels. One of the options to remedy this demand is the use of alkaline type fuel cells, because present a good energy efficient. A limitation for the application of this technology lies in the catalytic supports. Frequently are designed with platinum, but this increases the cost of production. For this technology are very important because on this catalytic supports the reactions of oxide-reduction is where it take place and allow the generation of energy one alternative to remedy is the use of nanoparticles on the catalytic supports. On the other way, the green chemistry offers an alternative for the development of nanoparticles (NPs), these NPs can be synthesized from plant extracts, reducing the cost and obtaining processes, and friendly to environment. Nickel (Ni) is one of the most abundant metals in the earth’s crust and easily accessible in its oxide form, its easy disposition and its electroconductive properties makes it a good candidate to develop NPs and can to be supported on the electrodes. Green synthesis of nickel oxide nanoparticles (NiONPs) is a ecofrendly route and low cost. The use of extracts obtained from Manihot Esculenta (M. Esculenta) as a reducing agent for synthesis of NiONPs. Obtained a material with electrocatalytic behaviour and the low cost. Allowing to apply this technology in a future near as an energy alternative. The transmission electron microscope allowed to knew the size of the NiONPs, varying between 7.5 nm and 8.3 nm. The electrochemical proprieties of NiONPs were investigate using cyclic voltammetry and electrochemical impedance spectroscopy.