Electrochemical Monitoring of Polymerization in Hybrid Systems

Redox conductivity of conducting polymers involves anion insertion associated to oxidation processes (p-type doping) and cation insertion coupled with reduction ones (n-type doping). Efficient polymer-based electronic devices require lowering of the redox potential of the involved electron transfer processes, and electrochemical reversibility is necessary to allow repetitive charge/discharge processes. In the 

FIGURE 8,13 Nyquist representations for EIS obtained for glassy carbon electrodes modified with LDH-PANI immersed into 0.50 M phosphate buffer (pH 7.0) at applied potentials of 0.0 V (circles), +0.60 V (solid cucles), and -0.80 V (squares). 

FIGURE 8.15 Separate plots of the cathodic and anodic components and the net current in SQWVs of PTA Y-modified electrodes immersed into (a) 0.10 M Bii N1 1, /Mc( N and (b,c) 0.10 M LiClO4/MeCN at frequencies of (a,b) 5 and (c) 15 Hz. Potential step increment, 4 mV square-wave amplitude, 25 mV. 

FIGURE 8.16 Schematics for the electrochemical reduction of zeolite-associated polyacetylene oligomers. 

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