Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/82086

TítuloSolid polymer electrolytes based on gellan gum and ionic liquid for sustainable electrochromic devices
Autor(es)Alves, R.
Fidalgo-Marijuan, A.
Campos-Arias, L.
Gonçalves, R.
Silva, Maria Manuela
Del Campo, F. J.
Costa, Carlos Miguel Silva
Lanceros-Méndez, S.
Palavras-chaveSolid polymer electrolytes
Gellan gum
Ionic liquid
Electrochromic devices
Sustainability
Data2022
EditoraAmerican Chemical Society (ACS)
RevistaACS Applied Materials and Interfaces
Resumo(s)Materials sustainability is becoming increasingly relevant in every developed technology and, consequently, environmentally friendly solid polymer electrolytes (SPEs) based on gellan gum and different quantities of ionic liquid (IL) 1- Ethyl-3-methyl-imidazolium-thiocyanate [Emim][SCN] have been prepared and applied in electrochromic devices (ECDs). The addition of the IL does not affect the crystalline phase of gellan gum and the samples show a compact morphology, surface uniformity, no phase separation and good distribution of the IL within the carrageenan matrix. The developed SPE are thermally stable up to ~ 100 ºC and show suitable mechanical properties. The most concentrated sample (39 wt.% IL content) reaches a maximum ionic conductivity value of 6.010–3 S cm–1 and 1.810–2 S cm–1 at 30 ºC and 90 ºC, respectively. The electrochromic device (ECD) was fabricated with poly(3,4- ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) as working electrode and the developed SPE was compared with an aqueous 0.1 M KNO3 solution. The electrochromic performance of the electrolyte was assessed in terms of spectroelectrochemistry, demonstrating a fully flexible ECD operating at voltages below 1.0 V. This novel electrolyte opens the door to the preparation of high performance sustainable ECD.
TipoArtigo
URIhttps://hdl.handle.net/1822/82086
DOI10.1021/acsami.2c01658
ISSN1944-8244
e-ISSN1944-8252
Versão da editorahttps://doi.org/10.1021/acsami.2c01658
Arbitragem científicayes
AcessoAcesso embargado (2 Anos)
Aparece nas coleções:FUNCTIONAL AND SMART MATERIALS AND SURFACES FOR ADVANCED APPLICATIONS (2018 - ...)

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