Electrodeposited platinum thin films with preferential (100) orientation: Characterization and electrocatalytic properties for ammonia and formic acid oxidation

► Porous and preferentially oriented {100} Pt thin films are prepared. ► The surface of these electrodes is composed of up to 47% of (100) Pt sites. ► The current for the electro-oxidation of ammonia is 4.8 times higher than on polycrystalline Pt. ► The current for the electro-oxidation of formic acid is 2.6 times higher than on polycrystalline Pt.