fig1
From: Coupling active polymer networks with solubility-driven gradients for augmented hydrogel thermocells
Figure 1. Design and chemical characterization of the thermogalvanic hydrogel electrolytes. (A) Schematic of the synthesis and network structure of PAAm and P(AAm-AMPS) electrolytes; (B) ESP maps of AAm and AMPS chain segments; (C) FTIR spectra of different hydrogel matrices; (D) XPS full spectra and (E) high-resolution N 1s spectra of PAAm and P(AAm-AMPS) electrolytes; (F) Digital photographs of the as-prepared P(AAm-AMPS) electrolyte. PAAm: Polyacrylamide; AAm: acrylamide; AMPS: 2-acrylamido-2-methylpropanesulfonic acid; ESP: electrostatic potential; FTIR: Fourier transform infrared; XPS: X-ray photoelectron spectroscopy.
