Table 3.

Examples of electrochemical potential window of selected phosphonium- and imidazolium-based ionic liquids and standard aqueous and non-aqueous electrolytes.

IL	Solvent	Salt	Electrode	Potential Window/V	Reference
[P2225][NTf2]	-	-	Pt wire	6.3	[15]
[P2228][NTf2]				6.4
[P222(1O1)][NTf2]				5.7
[P222(2O1)][NTf2]				5.4
[bmim][NTf2]			Carbon film	3	[16]
[bmim][NO3]				2.8
[Pyr14][NTf2]			TiC-CDC	2.5	[20]
[Pyr14][NTf2]			AC	3.5	[21]
[EdMPN][NTf2]			Sucrose	±2.3	[22]
-	Acetone	[NEt4][ClO4], [NBu4][PF6], NaClO4	Pt wire	3.5	[23]
	CH3CN	[NEt4][ClO4], [NBu4][PF6], LiClO4		4
	CH2Cl2	[NBu4][PF6], [NBu4][ClO4], [NBu4][X] (X = Cl, Br, F, I)		3.7
	DMF	[NEt4][ClO4], [NBu4][PF6], LiCl, NaClO4		4.3
	DMSO	[NEt4][ClO4], [NBu4][PF6]		3.3
	THF	[NBu4][PF6], LiClO4, NaClO4		3.7
	H2O	NaClO4,KNO3		2

[P₂₂₂₅][NTf₂] = triethyl-n-pentylphosphonium bis(trifluoromethylsulfonyl)amide; [P_222(1O1)][NTf₂] = triethyl(methoxymethyl)phosphonium bis(trifluoromethylsulfonyl)amide; [bmim][NTf₂] = 1-butyl-3 methylimidazolium bis(trifluoromethylsulfonyl)imide; [Pyr₁₄][NTf₂] = 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide; [EdMPN][NTf₂] = ethyldimethylpropylammonium bis(trifluoromethylsulfonyl) imide.