POS3-0410
Polyaniline as a Conducting Physical Intercalant for Multilayered Nanohybrid Electrodes in Flexible All-Solid-State Supercapacitors
When and Where
Nov 30, -0001
12:00am - 12:00am
Presenter(s)
Yoon Hyeonseung (chonnam national university)
Co-Author(s)
Abstract
Polyaniline-mediated physical exfoliation was employed to fabricate vertically layered three-dimensional graphene/MoS2/polyaniline ternary nanohybrids. Polyaniline functioned as a conducting intercalant and binder, facilitating the exfoliation and homogeneous dispersion of graphene and MoS2 sheets while suppressing their restacking. In addition, the interfacial interactions among graphene, MoS2, and polyaniline promoted a partial phase transition of MoS2 from the semiconducting 2H phase to the metallic 1T phase, thereby improving charge transport within the electrode. The resulting nanohybrids exhibited an open porous architecture that enabled efficient electrolyte-ion transport and electrochemical reactions. To fabricate flexible all-solid-state supercapacitors, the optimized nanohybrids were integrated with poly(vinyl alcohol)-based polymer gel electrolytes, which simultaneously served as an ion-conducting medium and separator. The assembled devices exhibited favorable electrochemical performance, cycling stability, and mechanical flexibility under bending conditions. These results demonstrate that the integration of conducting polymers and polymer gel electrolytes provides an effective strategy for developing layered nanohybrid electrodes for flexible all-solid-state supercapacitors.
