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List of commonly used electrodes: (A) carbon paper, (B) carbon cloth, (C) carbon fibre, (D) reticulated vitrified carbon, (E) carbon mesh, (F) graphitic granular, (G) carbon brushes, (H) graphite rod, (I) polycrystalline graphite, (J) carbon felt, (K) platinum mesh, (L) different metal electrode strips, (M) conductive polymer-based strips.
