Synthesis of acetyl imidazolium-based electyrolytes and application for dye-sensitized solar cells

Imidazolium Cations with Exceptional Alkaline Stability: A Systematic Study of Structure–Stability Relationships

“…Researchers have attached N -methyl or N -alkyl benzyl imidazoliums to polymers and investigated them as alternatives to ammonium cations, and while these cations transport hydroxide sufficiently, the chemical stabilities of unsubstituted imidazoliums are generally much too low for fuel cell applications . In fact, imidazolium cations with higher stability would be beneficial in many applications, such as organocatalysis, solar cell electrolytes, phase transfer catalysis, and as carbon material precursors, in addition to AAEMs. Imidazoliums degrade under alkaline conditions via four distinct mechanisms, and the identities of the substituents direct the degradation pathways (Scheme ) .…”

Synthesis, characterization and spectroscopic studies of two new 1-acetyl-3-alkylimidazolium ionic liquids

“…As early as in 1982, Iizuka and coworkers prepared 1-acetyl-3-substituted imidazolium salts by the reaction of 1-acetylimidazole and benzyl halides [ 16 ]. Then, Kim and coworkers reported acetyl imidazolium iodide salts and their application as electrolytes in dye-sensitized solar cells [ 17 ]. In this paper, we report details of syntheses and structural characterization of two new functionalized ionic liquids, 1-acetyl-3-ethylimidazolium iodide ( 3a ) and 1-acetyl-3-hexylimidazolium iodide ( 3b ).…”

Synthesis and characterization of urea-containing imidazolium iodide electrolyte for dye-sensitized solar cells

“…Mixtures of ammonium salts with amide, urea, glycerol and organic acids generating hydrogen bonds have been used previously but as eutectic mixtures [20,21]. In our group, imidazolium ILs containing acetyl, urethane, secondary amine, and quaternary ammonium have been studied [11,22,23].…”