Abstract
A new class of graphene/polyaniline multilayer film was constructed by layer-by-layer self-assembly, using poly(sodium 4-styrenesulfonate) stabilized graphene sheets (PSS-GS) and polyaniline (PANI) as building blocks. Poly(sodium 4-styrenesulfonate) (PSS) was used not only to stabilize the graphene sheets, but also facilitate the growth of the PSS-GS/PANI multilayer films via electrostatic interactions between PSS-GS and PANI. Furthermore, PSS can also act as a dopant for PANI during redox reactions. Ultraviolet-visible absorption spectrum (UV-vis), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and scanning electron microscopy (SEM) results demonstrate the successful fabrication of the PSS-GS/PANI hybrid multilayer films. Electrochemical experiments show that PSS-GS inside the multilayer film can dope PANI effectively and the multilayer film still presents a redox activity at neutral pH. In addition, the obtained nanostructured PSS-GS/PANI multilayer film is very stable and shows high electrocatalytic ability toward H2O2, which makes it an ideal substrate for H2O2 detection and offers great promise for sensing.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have