Materials TMOP and TEOP have been synthesized using phosphorus(V) oxychloride (99% purity, Sigma Aldrich) and respective alcohol triethylene glycol monomethyl ether (95% purity, Sigma Aldrich) and di(ethylene glycol) ethyl ether (99% purity, Sigma Aldrich). 1-Methylpyrrolidine (98% purity, Sigma Aldrich) 1,2dimethylimidazole (99% purity, Sigma Aldrich), 1-methylimidazole (98% purity, Sigma Aldrich), sodium sulfate (99% purity, Sigma Aldrich), ethyl acetate (99.5% purity, Sigma Aldrich) and hexane (99% purity, Sigma Aldrich) were used without further purification. All the synthesized ILs were kept in a vacuum oven at 90 1C for at least 3 days until the water content was less than 100 ppm (Table S4, ESI †), as determined by the Karl-Fischer titration using a 917 coulometer (Metrohm) placed inside a glovebox with water and oxygen contents less than 1 ppm. Multi-walled carbon nanotubes (Sigma Aldrich, 95% carbon, O.D.  L 6-9 nm  5 mm), activated charcoal (Sigma Aldrich, 100 mesh size), polyvinyl alcohol (Merck, M W 72 000) and glass microfiber filters (Whatman s ) were used as received.
917 coulometer
Manufactured by Metrohm
Sourced in Switzerland
The 917 coulometer is a versatile instrument designed to accurately measure the quantity of electricity passed during an electrochemical reaction. It provides a precise determination of the amount of substance involved in the reaction, enabling reliable analysis in various applications. The 917 coulometer operates on the principles of coulometric titration, delivering reliable and reproducible results.
Automatically generated - may contain errors
Lab products found in correlation
Hexane, by Merck Group (1 mentions)
Ethyl acetate, by Merck Group (1 mentions)
Sodium sulfate, by Merck Group (1 mentions)
1 methylimidazole, by Merck Group (1 mentions)
Triethylene glycol monomethyl ether, by Merck Group (1 mentions)
1 2 dimethylimidazole, by Merck Group (1 mentions)
Activated charcoal, by Merck Group (1 mentions)
1 methylpyrrolidine, by Merck Group (1 mentions)
Phosphorus 5 oxychloride, by Merck Group (1 mentions)
Whatman, by Cytiva (1 mentions)
3 protocols using 917 coulometer
1
Synthesis and Characterization of ILs
2
Synthesis and Characterization of Fluorine-free Oligoether Carboxylate-based Li-salt and ILs
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The fluorine-free oligoether
carboxylate-based Li-salt and ILs were synthesized by a slight modification
of the procedure described earlier.32 (link) The
synthesis protocols and material characterizations including multinuclear
(1H, 13C, 7Li, and 31P)
nuclear magnetic resonance (NMR) spectroscopy, mass spectrometry,
and elemental analysis are described in detail in theSupporting Information . The electrolytes were
prepared by mixing 10–50 mol % of Li(MEEA) in (P4,4,4,4)(MEEA) (Table 1 ),
but phase separation was observed for the highest salt concentration
and this is therefore not further included in this study. All the
samples were kept in a vacuum oven at 80 °C for 3–6 days
until the water content was less than 200 ppm as determined by the
Karl Fischer titration using a 917 coulometer (Metrohm).
carboxylate-based Li-salt and ILs were synthesized by a slight modification
of the procedure described earlier.32 (link) The
synthesis protocols and material characterizations including multinuclear
(1H, 13C, 7Li, and 31P)
nuclear magnetic resonance (NMR) spectroscopy, mass spectrometry,
and elemental analysis are described in detail in the
prepared by mixing 10–50 mol % of Li(MEEA) in (P4,4,4,4)(MEEA) (
but phase separation was observed for the highest salt concentration
and this is therefore not further included in this study. All the
samples were kept in a vacuum oven at 80 °C for 3–6 days
until the water content was less than 200 ppm as determined by the
Karl Fischer titration using a 917 coulometer (Metrohm).
3
Synthesis and Characterization of Ionic Liquids
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The synthesis and characterization of [P4,4,4,8][BMB] and [P4,4,4,8][BScB] are described in detail in our previous publication [36 (link)]. The samples were kept in a vacuum oven at 80 °C for 5 days prior to measurements. The water contents were 600 ± 50 ppm and 200 ± 40 ppm in [P4,4,4,8][BMB] and [P4,4,4,8][BScB], respectively, as determined by Karl Fischer titration using 917 coulometer (Metrohm, Herisau, Switzerland). Efforts were made to minimize the amount of water, but due to the strong interactions between the water molecules and the anions of these ILs, it was impossible to remove all traces of water [42 (link)].
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