sc7b03684_si_001.pdf (1.34 MB)
Deep Eutectic Solvents as Suitable Electrolytes for Electrochromic Devices
journal contribution
posted on 2017-12-12, 00:00 authored by Hugo Cruz, Noémi Jordão, Patrícia Amorim, Madalena Dionísio, Luís C. BrancoThe
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.
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bipyridiniumbistriflimidecm520 nmDESDeep Eutectic Solventsethylene glycolcoloration contrastlithium acetateReversible ECDperformanceelectrochromic deviceschloridesodium triflatePEGSuitable Electrolytespolyethylene glycolglycerolelectrolyteelectrochromic probesefficiencytransitionElectrochromic Devices1250 redox cycles
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