Title of article :
Characterization of sputter-deposited Ni-Mo and Ni-W alloy electrocatalysts for hydrogen evolution in alkaline solution
Author/Authors :
Kawashima، نويسنده , , Asahi and Akiyama، نويسنده , , Eiji and Habazaki، نويسنده , , Hiroki and Hashimoto، نويسنده , , Koji، نويسنده ,
Abstract :
Binary Ni-Mo and Ni-W alloy coatings with good adhesion to nickel substrate are successfully prepared by d.c. magnetron sputter deposition method. These alloy electrodes are found to be active hydrogen evolution electrocatalysts in 1 M NaOH solution at 30 °C. Ni-Mo alloy electrodes exhibit the highest activity, which is higher than that of smooth platinum electrode. Leaching treatment in hot concentrated caustic solution for Ni-Mo alloys significantly enhances the activity.
Keywords :
Electrocatalyst , Hydrogen evolution , Ni-Mo , Ni-W , Sputter deposition
Journal title :
Astroparticle Physics
