Tailoring the electrochemical performance of PEDOT : PSS via incorporation of spray dryer processed graphene oxide

Abstract

Summary This work reports a comparative study of electrolytic behavior of PEDOT:PSS‐SPGO nanocomposite‐based supercapacitor devices in aqueous and polymer gel electrolytes. Initially, more purified and finely dispersed graphene oxide (SPGO) was synthesized by using a spray dryer process. Furthermore, PEDOT:PSS was mixed in a certain optimum concentration with SPGO and a PEDOT:PSS‐SPGO nanocomposite was prepared. The utility of PEDOT:PSS‐SPGO nanocomposite was investigated by fabricating its supercapacitor devices. Here, the incorporation of SPGO enhanced the electrochemical performance of the PEDOT:PSS by developing the PEDOT:PSS‐SPGO nanocomposite. The prepared nanocomposite‐based device exhibited the highest Csp of 134.66 and 155 F g−1 in polyvinyl alcohol‐phosphoric acid (PVA‐H3PO4))polymer gel and aqueous 1 M H3PO4 electrolytes, respectively, at 5 mV s−1 which were higher than that of pure PEDOT:PSS and SPGO. In addition, this nanocomposite showed a good energy density and high‐power density of 10.79 W h kg−1 and 1529.29 W kg−1, respectively, in aqueous electrolyte.

High Energy Density Supercapacitors: An Overview of Efficient Electrode Materials, Electrolytes, Design, and Fabrication

“…The cross‐sectional images of the porous structures (Figure 12d–f) show that more PANI fibres may be embedded in them as a result of a greater PANI content. Poly(3,4‐ethylene‐dioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) was mixed with spray dryer processed graphene oxide (SPGO) to synthesize PEDOT; PSS‐SPGO nanocomposite which showed energy density of 10.79 Whkg −1 at 1529.29 Wkg −1 power density [118] . These results show the potential of nanocomposites made of rGO or graphene with pseudocapacitive materials for enhancing electrochemical performance in supercapacitor applications.…”

Thermally stable metallic glass strain sensors with extended sensing range and sensitivity

“…PVA is effectively attached to the PDMS surface via noncovalent bonding interactions, such as hydrogen bonding and van der Waals and hydrophobic attraction. The aqueous GNP solution is prepared by adding PSS, 32,[37][38][39][40][41] which facilitates the dispersion of the GNPs in the polar solvent. Furthermore, the sulfonic groups of PSS also contribute to the formation of hydrogen bonds with PVA.…”

High-Performance Supercapacitors Utilising PEDOT Composite Electrodes; Synthesis, Characterisation and Electrochemical Performance Analysis

“…Furthermore, PEDOT capacitance is hindered by low material utilisation [34] and its activity is decreased by limited ion transport within the bulk of the material. In recent years, solutions to these problems have been addressed through the synthesis of PEDOT composites with graphene or graphene oxide [35][36][37][38].…”