{"product_id":"cco2rreailemimotf","title":"[EMIM]OTf (1-Ethyl-3-methylimidazolium trifluoromethanesulfonate, \u003e98%) Ionic Liquid as Electrolyte Additive for CO2 Electroreduction (CO2RR), CCO2RREAILEMIMOTf","description":"\u003cp\u003eIn electrochemical CO2 reduction (CO2RR), [EMIM]OTf (1-Ethyl-3-methylimidazolium trifluoromethanesulfonate) is a prominent ionic liquid used as an electrolyte additive to lower the overpotential and steer selectivity toward Carbon Monoxide (CO).The \"EMIM\" cation is the active component that interacts with the CO2 molecule, while the \"OTf\" (triflate) anion provides high chemical and thermal stability, making it a reliable choice for long-term electrolysis experiments.\u003c\/p\u003e\n\u003cp\u003eThe most significant impact of [EMIM]OTf is its ability to stabilize the initial, energy-intensive step of CO2 reduction. (1) \u003cstrong\u003eLowering the Overpotential\u003c\/strong\u003e: The [EMIM]+ cation forms a complex with the CO2 molecule at the electrode surface. This interaction stabilizes the CO2'- radical anion, which is the most difficult intermediate to form. (2) \u003cstrong\u003eHydrogen Bond Stabilization\u003c\/strong\u003e: The acidic proton at the C2 position of the imidazolium ring can form a hydrogen bond with the oxygen atoms of the CO2 intermediate, further lowering the activation energy barrier. (3) \u003cstrong\u003eShifting Selectivity\u003c\/strong\u003e: By making the formation of the CO2'- intermediate easier, [EMIM]OTf allows CO2 reduction to occur at much lower negative potentials—voltages where the competing Hydrogen Evolution Reaction (HER) is not yet dominant.\u003c\/p\u003e\n\u003cp\u003eWhile the [EMIM] cation does the \"heavy lifting\" at the interface, the Triflate (OTf) anion offers specific benefits compared to other ionic liquids like [EMIM][BF4]: (1) \u003cstrong\u003eHydrolytic Stability\u003c\/strong\u003e: Unlike BF4-, which can slowly decompose into HF in the presence of water, [OTf]- is extremely stable in aqueous mixtures. (2) \u003cstrong\u003eLow Viscosity\u003c\/strong\u003e: [EMIM]OTf has a relatively low viscosity for an ionic liquid, which helps maintain fast mass transport of CO2 to the electrode surface. (3) \u003cstrong\u003eConductivity\u003c\/strong\u003e: It provides excellent ionic conductivity, helping to reduce the overall cell voltage and heat generation in the electrolyte.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 192.637px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 40.2375px;\"\u003e\n\u003ctd style=\"width: 35.0575%; height: 40.2375px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 40.2375px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCCO2RREAILEMIMOTf (C-CO2RR-EA-ILEMIMOTf)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003e145022-44-2\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003eChemical Formula\/Structure\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003eC7H11F3N2O3S\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CCO2RREAILEMIMOTf_molecular_structure_160x160.png?v=1771876083\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 35.0575%; height: 35.6px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eTransparent Liquid\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003e260.23\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003e[EMIM]OTf on Cu Catalyst\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003eSuppresses HER; promotes C1 products.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003e[EMIM]OTf on Ag Catalyst\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003eDramatically lowers CO onset potential.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003e[EMIM]OTf on Bi Catalyst\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003ePromotes Formate (HCOO-) production.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003e25 g\/bottle (other package sizes, such as 100 g, 500 g can be supplied upon request)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e(1）\u003ca href=\"https:\/\/pubs.acs.org\/doi\/full\/10.1021\/acscatal.4c05012\"\u003eY. Wang, et al., Descriptors for Electrochemical CO2 Reduction in Imidazolium-Based Electrolytes, ACS Catal. 2024, 14, 21, 16166–16174\u003c\/a\u003e. \u003c\/p\u003e\n\u003cp\u003e(2) \u003ca href=\"https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acs.chemrev.4c00696\"\u003eY. Wang, et al., Ionic Liquids Promoted Transformation of Carbon Dioxide, Chem. Rev. 2025, 125, 13, 6057–6129\u003c\/a\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0376738820310255\"\u003e.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"MKL","offers":[{"title":"Default Title","offer_id":47379405766886,"sku":"CCO2RREAILEMIMOTf","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CCO2RREAILEMIMOTf_main.png?v=1771876395","url":"https:\/\/echemsupplies.com\/products\/cco2rreailemimotf","provider":"EChem Supplies","version":"1.0","type":"link"}