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| Naji, M. |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Azevedo, Nuno Monteiro |
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Kopecký, Dušan
University of Pardubice
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Flexible, ultrathin and light films from one-dimensional nanostructures of polypyrrole and cellulose nanofibers for high performance electromagnetic interference shieldingcitations
- 2022Room Temperature Detection of Hydrogen Peroxide Vapor by Fe2O3:ZnO Nanograinscitations
- 2022Tailor-made dual doping for morphology control of polyaniline chains in cellulose nanofiber-based flexible electrodes: electrical and electrochemical performancecitations
- 2021Elaboration and properties of nanofibrillated cellulose composites with polypyrrole nanotubes or their carbonized analogscitations
- 2020New approach for the development of reduced graphene oxide/polyaniline nanocomposites via sacrificial surfactant-stabilized reduced graphene oxidecitations
- 2020Electromagnetic interference shielding of polypyrrole nanostructurescitations
- 2017Synthesis of silver-anchored polyaniline–chitosan magnetic nanocomposite: a smart system for catalysiscitations
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article
Flexible, ultrathin and light films from one-dimensional nanostructures of polypyrrole and cellulose nanofibers for high performance electromagnetic interference shielding
Abstract
Combining highly conducting one-dimensional nanostructures of polypyrrole with cellulose nanofibers (CNF) into flexible films with tailored electrical conductivity and mechanical properties presents a promising route towards the development of eco-friendly electromagnetic interference shielding devices. Herein, conducting films with a thickness of 140 μm were synthesized from polypyrrole nanotubes (PPy-NT) and CNF using two approaches, i.e., a new one-pot synthesis consisting of in situ polymerization of pyrrole in the presence of structure guiding agent and CNF, and a two-step synthesis, in which CNF and PPy-NT were physically blended. Films based on one-pot synthesis (PPy-NT/CNFin) exhibited higher conductivity than those processed by physical blending, which was further enhanced up to 14.51 S cm−1 after redoping using HCl post-treatment. PPy-NT/CNFin containing the lowest PPy-NT loading (40 wt%), thus the lowest conductivity (5.1 S cm−1), displayed the highest shielding effectiveness of −23.6 dB (>90 % attenuation), thanks to the good balance between its mechanical properties and electrical conductivity. © 2023 Elsevier Ltd