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Balboni RDC, Cholant CM, Lemos RMJ, Rodrigues LS, Carreno NLV, Santos MJL, Avellaneda CAO, Andreazza R. Highly transparent sustainable biogel electrolyte based on cellulose acetate for application in electrochemical devices. Int J Biol Macromol 2024; 265:130757. [PMID: 38462107 DOI: 10.1016/j.ijbiomac.2024.130757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/12/2024]
Abstract
In this study, an easy and low-cost production method for a cellulose acetate-based gel polymer containing lithium perchlorate and propylene carbonate is described, as well as the investigation of its properties for potential use as an electrolyte in electrochemical devices. Cellulose acetate, a biopolymer derived from natural matrix, is colourless and transparent, as confirmed by the UV-Vis spectroscopy, with 85 % transparency in visible spectrum. The gels were prepared and tested at different concentrations and proportions to optimise their properties. Thermogravimetry, XRD, and FTIR analyses revealed crucial characteristics, including a substantial 90 % mass loss between 150 and 250 °C, a semi-crystalline nature with complete salt dissociation within the polymer matrix, and a decrease in intensity at 1780 cm-1 with increasing Li+ ion concentration, suggesting an improvement in ionic conduction capacity. In terms of electrochemical performance, the gel containing 10 % by mass of cellulose acetate and 1.4 M of LiClO4 emerged as the most promising. It exhibited a conductivity of 2.3 × 10-4 S.cm-1 at 25 °C and 3.0 × 10-4 S.cm-1 at 80 °C. Additionally, it demonstrated an ideal shape of cyclic voltammetry curves and stability after 400 cycles, establishing its suitability as an electrolyte in electrochemical devices.
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Affiliation(s)
- Raphael D C Balboni
- Graduate Program in Materials Science and Engineering, Technology Development Center, Federal University of Pelotas, Pelotas, RS 96010-000, Brazil
| | - Camila M Cholant
- Graduate Program in Materials Science and Engineering, Technology Development Center, Federal University of Pelotas, Pelotas, RS 96010-000, Brazil
| | - Rafaela M J Lemos
- Graduate Program in Materials Science and Engineering, Technology Development Center, Federal University of Pelotas, Pelotas, RS 96010-000, Brazil
| | - Lucas S Rodrigues
- Engineering, Modeling and Applied Social Sciences Center, Federal University of ABC (UFABC), Santo André, SP 09210-580, Brazil
| | - Neftali L V Carreno
- Graduate Program in Materials Science and Engineering, Technology Development Center, Federal University of Pelotas, Pelotas, RS 96010-000, Brazil.
| | - Marcos J L Santos
- Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil.
| | - Cesar A O Avellaneda
- Graduate Program in Materials Science and Engineering, Technology Development Center, Federal University of Pelotas, Pelotas, RS 96010-000, Brazil
| | - Robson Andreazza
- Graduate Program in Materials Science and Engineering, Technology Development Center, Federal University of Pelotas, Pelotas, RS 96010-000, Brazil.
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Cholant CM, Rodrigues MP, Peres LL, Balboni RDC, Krüger LU, Placido DN, Flores WH, Gündel A, Pawlicka A, Avellaneda CO. Study of the conductivity of solid polymeric electrolyte based on PVA/GA blend with addition of acetic acid. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04605-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Westphal TM, Cholant CM, Azevedo CF, Moura EA, da Silva DL, Lemos RM, Pawlicka A, Gündel A, Flores WH, Avellaneda CO. Influence of the Nb2O5 doping on the electrochemical properties of V2O5 thin films. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.02.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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