Self-Organizing Anodization in Pure Molten Ortho-Phosphoric Acid: Nanoporous Niobium Oxide Layers

摘要

The anodic oxidation of niobium is investigated in an electrolyte composed of pure, molten ortho-phosphoric acid, i.e. o-H_3PO_4. In a range of applied potential of 2.5-60 V and for temperatures of 60-110°C, porous niobium oxide layers can be formed.