ESCA and TOF-SIMS Study on Oxidised and Reduced Polypyrrole-Poly(Vinylsulfonic Acid, Sodium Salt) Films Synthesized on Ti Electrodes

Table 2

Percentage of the various binding energies of elemental composite (C–C, C=N, CO, and COOH) for PPy-PVS oxidised and reduced films of the film surfaces calculated from ESCA data, using values of atomic sensitivity factors (relative to C 1s), 𝜎_𝑖 [21].

PPy/PVS film		% (Binding energy (eV))
	C–C	C–OH/C=N	CO	COOH
Oxidised
(a) Electrolyte side	72.3 (284.6)	19.7 (286.2)	8.0 (287.8)	3.8 (289.1)
(b) Electrode side	71.0 (284.8)	19.1 (286.2)	9.8 (287.6)	6.3 (289.0)
Reduced
(a) Electrolyte side	72.7 (285.3)	19.5 (286.5)	7.8 (287.9)	6.2 (289.2)
(b) Electrode side	75.2 (285.1)	15.7 (286.3)	9.1 (287.6)	7.1 (289.0)