fig5

Figure 5. (A) Schematic illustration of the preparation process of PPy nanostructures by chemical oxidation polymerization; FESEM images of (B) products treated with oxidant concentration at 0.14 mol L^-1 for 24 h; (C) Products treated with oxidant concentration at 0.21 mol L^-1 for 8 h; (D) PPy prepared in pure EtOH; TE properties of σ, S, and S²σ of PPy nanowires prepared with (E) a polymerization time of 8 h under different APS concentrations, (F) different oxidants, and (G) in various reaction media. Reproduced with permission^[182]. Copyright 2017 Royal Society of Chemistry. PPy: Polypyrrole; APS: ammonium peroxydisulfate; TE: thermoelectric.