[EMIM][DCA] (1-Ethyl-3-methylimidazolium dicyanamide, >99.0%) Ionic Liquid as Electrolyte Solvent and Additive, CESAILEMIMDCA

[EMIM][DCA] (1-Ethyl-3-methylimidazolium dicyanamide) is a high-performance ionic liquid characterized by its exceptionally low viscosity and high ionic conductivity. Because the DCA (N(CN)2^-) anion is small and highly mobile, this fluid is one of the most "water-like" ionic liquids in terms of transport properties, while still offering the benefits of a wide electrochemical window and low volatility.

CO2 Electroreduction (CO2RR): [EMIM][DCA] is a standout performer in CO2 reduction, particularly when used as a co-catalytic additive. (1) Overpotential Reduction: The [EMIM]+ cation and [DCA]- anion work synergistically to stabilize the CO2'- radical intermediate at the electrode surface. (2) Efficiency: It is highly effective at promoting Carbon Monoxide (CO) production on Silver (Ag) or Gold (Au) catalysts with high Faradaic Efficiency (>90%) at significantly lower energy costs (lower overpotentials) than aqueous salts alone.

High-Power Supercapacitors: Because ionic conductivity is the limiting factor for supercapacitor power, [EMIM][DCA] is a premier choice for these devices. (1) Fast Charge/Discharge: The low viscosity allows ions to rapidly enter and exit the microscopic pores of activated carbon electrodes. (2) Enhanced Energy Density: It allows for a cell voltage of ~3.0 V, which stores significantly more energy than aqueous electrolytes (limited to 1.2 V) while maintaining high power capability.

Part Number	CESAILEMIMDCA (C-ESA-ILEMIMDCA)
CAS	370865-89-7
Chemical Formula	C8H11N5
Appearance	Yellow to orange liquid
Purity	>99.0% Water level: <500 ppm
Molecular Weight	177.21 g/mol
Package Size	5 g/bottle (25 g also can be supplied upon request)

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

References: 

1. N. Karimi, et al. Nonfluorinated Ionic Liquid Electrolytes for Lithium Metal Batteries: Ionic Conduction, Electrochemistry, and Interphase Formation, Adv. Energy Mater., 2021, 11, 2003521.
2. J. Wang, et al. Nanostructure and Dynamics of Aprotic Ionic Liquids at Graphite Electrodes as a Function of Potential, Small 2024, 20, 2311353. 
3. X. Xie, et al., Ionic Liquids Electrodeposition of Sn with Different Structures as Anodes for Lithium-Ion Batteries, J. Electrochem. Soc.,2017, 164, D945.