Sustainable and Printable Nanocellulose-Based Ionogels as Gel Polymer Electrolytes for SupercapacitorsShow others and affiliations
2022 (English)In: Nanomaterials, E-ISSN 2079-4991, Vol. 12, no 2, article id 273Article in journal (Refereed) Published
Abstract [en]
A new gel polymer electrolyte (GPE) based supercapacitor with an ionic conductivity up to 0.32–0.94 mS cm−2 has been synthesized from a mixture of an ionic liquid (IL) with nanocellulose (NC). The new NC-ionogel was prepared by combining the IL 1-ethyl-3-methylimidazolium dimethyl phosphate (EMIMP) with carboxymethylated cellulose nanofibers (CNFc) at different ratios (CNFc ratio from 1 to 4). The addition of CNFc improved the ionogel properties to become easily printable onto the electrode surface. The new GPE based supercapacitor cell showed good electrochemical performance with specific capacitance of 160 F g−1 and an equivalent series resistance (ESR) of 10.2 Ω cm−2 at a current density of 1 mA cm−2. The accessibility to the full capacitance of the device is demonstrated after the addition of CNFc in EMIMP compared to the pristine EMIMP (99 F g−1 and 14.7 Ω cm−2). © 2022 by the authors.
Place, publisher, year, edition, pages
MDPI , 2022. Vol. 12, no 2, article id 273
Keywords [en]
Gel polymer electrolyte, Ionic liquid, Ionogel, Nanocellulose, Renewable energy storage, Supercapacitors
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-58438DOI: 10.3390/nano12020273Scopus ID: 2-s2.0-85122848431OAI: oai:DiVA.org:ri-58438DiVA, id: diva2:1633019
Note
Funding details: Horizon 2020 Framework Programme, H2020, 761000; Funding details: Universitat Autònoma de Barcelona, UAB; Funding text 1: Funding: This research was funded by European Union’s Horizon 2020 research and innovation program under grant agreement No 761000 (GREENSENSE project).; Funding text 2: This research was funded by European Union?s Horizon 2020 research and innovation program under grant agreement No 761000 (GREENSENSE project). Authors thank to Thermal Analysis Lab at the University of Alicante?s Technical Research Services (SSTTI) for your support in TGA Analysis. They also thank to Electron Microscopy Services from Autonomous University of Barcelona (UAB) for the FE-SEM and EDS mapping experiments; and to X-ray Diffraction Facility from Institut Catal? de Nanoci?ncia i Nanotecnologia (ICN2) for their support on XRD analysis.
2022-01-282022-01-282023-12-06Bibliographically approved