Irradiation of titanium with stationary helium plasma with edge fusion relevant plasma parameters was carried out in the PLM-M fusion device. A highly specific area and porous nanostructured surface with a nanostructure size from ~20 to ~200 nm was obtained. Such structures are obtained by processing refractory metals irradiated with plasma to produce structures such as fuzz and cauliflower. After plasma irradiation, titanium samples were processed in a nitrogen gas to obtain titanium nitride on the surface. The resulting surface has a high specific capacity and a low impedance of the double electric layer when testing samples in an electrolyte. Such material characteristics are promising for medical use in the manufacture of pacemaker electrodes.