Anodic oxidation process
Molybdenum foil is a kind of silver-gray metal sheet with metallic luster, like molybdenum plate, molybdenum rod and molybdenum wire, molybdenum foil is also a typical molybdenum product, which is composed of transition metal molybdenum (Mo) and rare earth elements. The melting point is about 2620 ℃, the boiling point is about 5560 ℃, and the relative density is 10.2g/cm3. It has the characteristics of high hardness, low coefficient of thermal expansion, high thermal conductivity, small resistivity, good chemical stability and electrochemical performance. Nanoporous metal because of the size of the nanoporous pore, the specific surface area is large, with some unique physical, chemical and mechanical properties, therefore, the preparation of nanoporous metal layer on the surface of molybdenum will improve the surface activity of molybdenum, and anodic oxidation method can be prepared on the surface of molybdenum foil nanoporous metal layer.
The anodic oxidation method is to use molybdenum foil as the anode and platinum sheet as the cathode, immersed in the electrolyte, and add 5-35V DC voltage at both ends of the cathode and anode for 20min, which is simple to operate and takes less time.