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The role of ion transport in the electrochemical corrosion of fluoropolymers. Preparation and properties of n-doped polymeric carbon with mixed ion/electron conductivity

1990; Elsevier BV; Volume: 38; Issue: 1-2 Linguagem: Inglês

10.1016/0167-2738(90)90450-6

1872-7689

Ladislav Kavan,

Recycling and Waste Management Techniques

Electrochemical reductive corrosion of fluoropolymers by alkali metal amalgams leads to the formation of a compact uniform layer of reaction products on the fluoropolymer surface. This layer behaves as a solid electrolyte with mixed electronic-ionic conductivity; the electron/ion-conductive component in the layer is elemental carbon that is n-doped with alkali metal. The rate of the layer growth is controlled by transport of alkali metal cations, which increases substantially in the sequence K+<Na+<Li+.