Highly processible and electrochemically active graphene-doped polyacrylic acid/polyaniline allowing the preparation of defect-free thin films for solid-state supercapacitors

Abstract

In the present work, we report the preparation of graphene (G) doped polyacrylic acid/polyaniline (G-PAA/PANI) composites with both excellent processibility for assuring ultrathin, defect-free and highly flexible films, as well as high electrochemical performances. The weight content of PANI is maximized under the constraint of still allowing defect free films, and G content is optimized. Interestingly, we combine two steps that both, if taken in isolation as a strategy, worsen solubility.The PANI and G contents are optimized to be 20 wt.% and 1.3 wt.%, respectively.The optimal G-PAA/PANI composite film has a gravimetric capacitance of 399 F/g at 10 mV/s, which is more than twice of pure PANI nanoparticles. Considering the film thickness of only 50 µm, its specific areal and volumetric capacitances are as high as 1.20 F/cm 2 and 240 F/cm 3 . The film still has 342 F/g at a high scan rate of 100 mV/s (86% of that at 10 mV/s), which promises great potential applications needing rapid charge/discharge. An assembled all-solid-state supercapacitor using two such flexible G-PAA/PANI films provides 93 F/g, a eighteen-fold improvement over that of reported similar device. The capacitor also exhibits an excellent electrochemical stability under different bending angles.

Nanoclay decorated polyacrylic acid/starch hybrid nanocomposite thin films as packaging materials

“…Among all vinylic based monomers, acrylic acid (AA) is mostly used for this purpose as it is easy to synthesis, low price, low toxicity, excellent biocompatibility, and biodegradable nature . Polyacrylic acid and water soluble polymers have paid significant attention due to their tremendous applications in different area like solid electrolyte for lithium ion batteries, efficient corrosion inhibitor, ion exchange, capacitors and so on . Incorporation of nano particles as filler can improve properties of starch based thin films like chemical, physical, and mechanical properties.…”

Fabrication of SiOx-G/PAA-PANi/Graphene Composite With Special Cross-Doped Conductive Hydrogels as Anode Materials for Lithium Ion Batteries

“…In addition, the bands at 1,720 and 1,090 cm −1 are attributed to C=O bending vibration and C-H bending vibration. The presence of above several absorption peaks are sufficient to prove the existence of PAA (Wang et al, 2015). The weaker absorption peak from 1,400 to Frontiers in Chemistry | www.frontiersin.org 1,650 cm −1 belongs to the polyaniline.…”

Nano‐CaCO3‐embodied polyacrylicacid/dextran nanocomposites for packaging applications

“…Among all monomers, vinylic‐based monomer, that is, acrylic acid (AA) is generally utilized for this intention because of its easy production, cost effective, less toxic, biodegradable and biocompatible nature . Poly(acrylic acid) (PAA), a water‐soluble polymer has gained considerable interest because of their incredible applications in multiple fields like electrolyte in dry cells, superabsorbent materials, energy storage materials, dye removal, biosensor, and so on . PAA is a biodegradable vinylic‐based aliphatic acid regularly prepared by polymerization of AA in the presence of ammonium persulfate (APS) as an initiator .…”