Abstract: A solid oxide fuel cell is provided. The solid oxide fuel cell includes a cathode, at least an electrolyte membrane, and an anode having a ceramic material and an alloy of nickel and at least a second metal, selected from aluminum, titanium, molybdenum, cobalt, iron, chromium, copper, silicon, tungsten and niobium, the alloy having an average particle size not higher than 20 nm. The provided solid oxide fuel cells shows enduring efficiency when fuelled with different fuels, including hydrogen and hydrocarbons, in a wide range of operating temperatures.

Abstract: An electrochemical device includes at least one porous supporting electrode including at least one electronically conducting material and at least one ionically conducting material, said ionically conducting material having an ionic conductivity, at 800° C., not lower than or equal to 0.005 S/cm?1, preferably 0.01 S/cm?1 to 0.1 S/cm?1, said at least one porous supporting electrode having a thickness greater than or equal to 200 ?m, preferably 500 ?m to 2 mm; at least one electrolyte membrane having a relative density greater than or equal to 90%, preferably 95% to 100%, and a thickness lower than or equal to 50 ?m, preferably 5 ?m to 30 ?m; and at least one porous counter-electrode.