Fig. 2: Electrochemical and structural stability of PANI.
From: A bioinspired microdevice unifying energy storage and actuation through hydration control
a Capacity retention of Zn-PANI microbatteries cycled in 2 M ZnSO4 and 2 M Zn(OTf)2. b Contour maps of cyclic voltammetry results for PANI in 2 M ZnSO4 and Zn(OTf)2 at scan rates of 0.2, 0.4, 0.6, 0.8, and 1.0 mV s−1. c Contour maps of in-operando Raman results of PANI cycled in 2 M ZnSO4 and Zn(OTf)2 electrolytes. The right panel shows the selected regions from 1100 to 1800 cm−1. d The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels and energy gaps (ΔE) for PANI doped by SO42− (top) and OTf- (bottom).
