Deep Eutectic Solvents as Suitable Electrolytes for Electrochromic Devices

The development of chloride free Deep Eutectic Solvents (DES) based on lithium acetate, triflate, bistriflimide, and sodium triflate combined with glycerol, ethylene glycol, and polyethylene glycol (PEG400) as suitable electrolytes was successfully applied in electrochromic devices (ECD). Reversible...

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Bibliographic Details
Published in:ACS sustainable chemistry & engineering 2018-02, Vol.6 (2), p.2240-2249
Main Authors: Cruz, Hugo, Jordão, Noémi, Amorim, Patrícia, Dionísio, Madalena, Branco, Luís C
Format: Article
Language:English
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Summary:The development of chloride free Deep Eutectic Solvents (DES) based on lithium acetate, triflate, bistriflimide, and sodium triflate combined with glycerol, ethylene glycol, and polyethylene glycol (PEG400) as suitable electrolytes was successfully applied in electrochromic devices (ECD). Reversible ECD incorporating selected DES as electrolyte and bipyridinium as electrochromic probes displayed a comparable performance to conventional systems, with slower transition times (2.5 times), improving the coloration contrast and efficiency (147.1 cm2. C−1 at 520 nm) and was stable for at least 1250 redox cycles.
ISSN:2168-0485
2168-0485
DOI:10.1021/acssuschemeng.7b03684