Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/39733
Título: | Gellan gum-Ionic liquid membranes for electrochromic device application |
Autor(es): | Neto, M. J. Sentanin, F. Esperança, J. M. S. S. Medeiros, Maria José Pawlicka, A. Bermudez, V. D. Z. Silva, Maria Manuela |
Palavras-chave: | Gellan-gum Electrochromic devices Ionic liquid Ionic liquids |
Data: | 2015 |
Editora: | Elsevier B.V. |
Revista: | Solid State Ionics |
Citação: | Neto, M. J., Sentanin, F., Esperanca, J. M. S. S., Medeiros, M. J., Pawlicka, A., Bermudez, V. d. Z., & Silva, M. M. (2015). Gellan gum-Ionic liquid membranes for electrochromic device application. Solid State Ionics, 274, 64-70. doi: 10.1016/j.ssi.2015.02.011 |
Resumo(s): | Biopolymer-based materials have been of particular interest and they are alternatives to synthetic polymers based on the decreasing oil resources. The polymer electrolytes were doped with choline-based IL N,N,Ntrimethyl- N-(2-hydroxyethyl)ammonium bis(trifluoromethylsulfonyl)imide ([N1 1 1 2(OH)][NTf2]), or Er (CF3SO3)3 or both. The polymer electrolytes were employed in the production of glass/ITO/WO3/electrolyte/ CeO2–TiO2/ITO/glass electrochromic devices (ECDs). The lowest onset temperature for the degradation of all the SPEs is at ~130 °C for the Gellan Er (CF3SO3)3 (10:1) this temperature range of stability is wide enough for a material to be applied as an electrolyte/separator component in electrochemical devices. The three ECDs displayed fast switching speed (ca. 15 s). Gellan [N1 1 1 2(OH)][NTf2] Er (CF3SO3)3 (5:1:10) exhibited an electrochromic contrast of 4.2% in the visible region, the coloration efficiency attained at 555 nm was 3.5 and 0.90 cm-2 C-1 in the “colored” and “bleached” states, respectively, and the open circuit memorywas 48 h. Preliminary tests performed with a prototype electrochromic device (ECD) incorporating WO3 as cathodic electrochromic layer, are extremely encouraging. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/39733 |
DOI: | 10.1016/j.ssi.2015.02.011 |
ISSN: | 0167-2738 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Solid State Ionics 274 (2015) 64–70.pdf Acesso restrito! | 2,21 MB | Adobe PDF | Ver/Abrir |