Fabrication of highly porous, plasma-reduced graphene oxide paper infused with electrically conductive polymer for an effective heat generation
| Autoři | |
|---|---|
| Rok publikování | 2026 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Applied Surface Science |
| Fakulta / Pracoviště MU | |
| Citace | |
| www | https://doi.org/10.1016/j.apsusc.2025.164566 |
| Doi | https://doi.org/10.1016/j.apsusc.2025.164566 |
| Klíčová slova | Reduced graphene oxide; Fast plasma reduction-exfoliation; PEDOT:PSS; rGO/PEDOT:PSS film; Dopants |
| Popis | This work presents preparation of a thin film made of plasma-reduced graphene oxide (rGO) paper infused with poly(3,4-ethylene-dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) via reduction-exfoliation of self-standing graphene oxide paper using diffuse coplanar surface barrier discharge operating in nitrogen atmosphere, atmospheric pressure and room temperature, followed by impregnation with PEDOT:PSS suspension via ultrasonic nebulization. Fast (2 s) reduction self-propagating wave is triggered in graphene oxide upon contact with plasma, spreading through the whole sample, producing a highly porous rGO structure that is suitable for further infusion with PEDOT:PSS resulting in a thin rGO/PEDOT:PSS composite film. Intermolecular synergistic interaction between rGO and PEDOT:PSS was observed, increasing the conductivity of the composite material as studied by XPS, FTIR, RAMAN, XRD and electrical methods. The effect of dopants in PEDOT:PSS on electrical conductivity and heating performance of prepared rGO/PEDOT:PSS composites is studied. Heating strips were assembled, and their heating capabilities were analyzed. Using DMSO as dopant in PEDOT:PSS resulted in the most significant increase in electrical conductivity measured by 4-point measurement (3613 S.m-1) and heating performance (80.9 °C at 10 V and 373.3 mW.cm-2). Upon heating, the conductivity of rGO/PEDOT:PSS increases, most significantly with DMSO as dopant (7910 S.m-1), indicating semiconductive behavior of the composite. |
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