Nickel Electrode Precursor Covered by Pt, Ni and Pt/Ni Layers Using Sol-Gel Method

Abstract

The presented paper discusses a possibility of developing and modifying surface of nickel substrate by applying of Ni, Pt, Pt/Ni porous metallic layers by zol-gel method using EDTA as a complexing agent. Then gel containing Pt or Ni or Ni/Pt was decomposed during pyrolysis process and then transformed into the porous metal during oxidation/reduction process at 600°C respectively in air or H2 atmosphere. The thermal decomposition of gels were studied by TG/DTA method. Compositions of oxidized as well as metallic layers were determined by EDX and XRD method. The morphology of Pt, Ni and Pt/Ni layers were studied by SEM method.