[BMIM][DCA] (1-Butyl-3-methylimidazolium dicyanamide, >99.0%) Ionic Liquid as Electrolyte Solvent and Additive, CESAILBMIMDCA

[BMIM][DCA] (1-Butyl-3-methylimidazolium dicyanamide) is a unique, low-viscosity ionic liquid that is increasingly popular in electrochemical research. Unlike many "first-generation" ionic liquids (like those based on [PF6]- or [TFSI]-, dicyanamide-based salts are known for their exceptionally high ionic conductivity and relatively low cost.

CO2 Electroreduction (CO2RR): [BMIM][DCA] is a powerful additive for CO2 reduction on Silver (Ag) and Gold (Au) catalysts. The dicyanamide anion has a strong affinity for CO2 molecules. When paired with the [BMIM]+ cation, it helps stabilize the *CO2'- intermediate at the catalyst surface.  It is specifically noted for achieving very high Faradaic Efficiency (FE) for Carbon Monoxide (CO) at extremely low overpotentials.

Supercapacitors: Because of its high ionic conductivity and low viscosity, [BMIM][DCA] is an excellent electrolyte for high-power supercapacitors. The low viscosity allows for fast ion movement into the pores of activated carbon electrodes, enabling faster charging and discharging than more viscous ILs. While its voltage window (~3.0 V) is narrower than [TFSI]-based systems, it is still more than double that of aqueous electrolytes, significantly boosting energy density.

Part Number	CESAILBMIMDCA (C-ESA-ILBMIMDCA)
CAS	448245-52-1
Chemical Formula	C10H15N5
Appearance	Light yellow liquid
Purity	>99.0% Water level: <500 ppm
Molecular Weight	205.26 g/mol
Package Size	5 g/bottle (25 g also can be supplied upon request)

Notes: Please try to store the [BMIM][DCA] ionic liquid in the dry place. 

References: 

1. S. S. Golru, et al. Modifying Copper Local Environment with Electrolyte Additives to Alter CO2 Electroreduction vs Hydrogen Evolution, ACS Catal. 2023, 13, 12, 7831–7843.
2. M. Forsyth, et al. Tuning Sodium Interfacial Chemistry with Mixed-Anion Ionic Liquid Electrolytes, ACS Appl. Mater. Interfaces 2019, 11, 46, 43093–43106. 
3. Q. Huang, et al., Solvation Structure and Dynamics of Li+ in Ternary Ionic Liquid–Lithium Salt Electrolytes, J. Phys. Chem. B 2019, 123, 2, 516–527.