Abstract

Metal ion loaded Nafion membranes were used as starting materials in an in situ oxidation and precipitation process within the polymer membrane. The products achieved via this synthesis route were different amorphous and crystalline metal oxides like LiCoO₂ and Mn₃O₄ incorporated in the membrane either as a thin layer (skin) or throughout the whole membrane via a two way diffusion process. X-Ray diffraction and Raman spectroscopy were used for the characterisation of the incorporated species and the Nafion membrane. Crystalline phases could be identified using X-ray diffraction and Raman measurements were used to identify the amorphous precipitates.