2026-04-18T07:28:29Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/256002024-11-14T07:42:31Zcom_2072_452955com_2072_2054col_2072_453062

Advanced Flexible Wearable Electronics from Hybrid Nanocomposites Based on Cellulose Nanofibers, PEDOT:PSS and Reduced Graphene Oxide Carrascosa Galán, Ana Sánchez, Jaime S. Morán Aguilar, María Guadalupe Gabriel, Gemma Vilaseca Morera, Fabiola Agencia Estatal de Investigación Fibres de cel·lulosa Cellulose fibers Nanofibres Nanofibers Nanocompòsits (Materials) Nanocomposites (Materials) Energia -- Emmagatzematge Energy storage The need for responsible electronics is leading to great interest in the development of new bio-based devices that are environmentally friendly. This work presents a simple and efficient process for the creation of conductive nanocomposites using renewable materials such as cellulose nanofibers (CNF) from enzymatic pretreatment, poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS), and/or reduced graphene oxide (rGO). Different combinations of CNF, rGo, and PEDOT:PSS were considered to generate homogeneous binary and ternary nanocomposite formulations. These formulations were characterized through SEM, Raman spectroscopy, mechanical, electrical, and electrochemical analysis. The binary formulation containing 40 wt% of PEDOT:PSS resulted in nanocomposite formulations with tensile strength, Young’s modulus, and a conductivity of 70.39 MPa, 3.87 GPa, and 0.35 S/cm, respectively. The binary formulation with 15 wt% of rGO reached 86.19 MPa, 4.41 GPa, and 13.88 S/cm of the same respective properties. A synergy effect was observed for the ternary formulations between both conductive elements; these nanocomposite formulations reached 42.11 S/cm of conductivity and kept their strength as nanocomposites. The 3D design strategy provided a highly conductive network maintaining the structural integrity of CNF, which generated homogenous nanocomposites with rGO and PEDOT:PSS. These formulations can be considered as greatly promising for the next generation of low-cost, eco-friendly, and energy storage devices, such as batteries or electrochemical capacitors This research was funded by of the Spanish Ministry of Science and Innovation to the project CEL-SENS (TED2021-132164B-C21), as well as to the collaborative project Biocomposites between Stora Enso and the Knut and Alice Wallenberg Foundation (KAW 2018.0451) 9 2024-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion peer-reviewed http://hdl.handle.net/10256/25600 PMC11548421 http://hdl.handle.net/10256/25600 eng info:eu-repo/semantics/altIdentifier/doi/10.3390/polym16213035 info:eu-repo/semantics/altIdentifier/eissn/2073-4360 TED2021-132164B-C21 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/TED2021-132164B-C21/ES/SUSTRATOS CONDUCTORES INNOVADORES DE BASE NANOCELULOSICA PARA SENSORES Y BIOSENSORES MAS SOSTENIBLES/ Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess application/pdf MDPI (Multidisciplinary Digital Publishing Institute) Polymers, 2024, vol. 16, núm. 21, p. 3035 Articles publicats (D-EQATA)