Catalytic electrochemical reduction of CO2 in ionic liquid EMIMBF3Cl

Laura L. Snuffin; Louis W. Whaley; Lei Yu

doi:10.1149/1.3606487

Catalytic electrochemical reduction of CO₂ in ionic liquid EMIMBF₃Cl

Laura L. Snuffin, Louis W. Whaley, Lei Yu

Chemistry

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59 Scopus citations

Abstract

A novel ionic liquid EMIMBF₃Cl that contains a BF ₃Cl^- anion has been synthesized. This is the first report of an ionic liquid with a BF₃Cl^- anion. It was found that CO₂ gas can be dissolved and electrochemically reduced at ambient pressure, and room temperature in the ionic liquid EMIMBF₃Cl. The reduction of CO₂ occurred at a relatively less negative electrode potential of -1.8 V vs. silver wire, compared to previous reported values that are between -2.4 and -2.0 V. The reduction current density can be as high as ∼5.7 mA/cm². The BF₃Cl^- anion may catalyze the CO₂ reduction by forming a Lewis acid-base adduct BF ₃-CO₂.

Original language	English (US)
Pages (from-to)	F155-F158
Journal	Journal of the Electrochemical Society
Volume	158
Issue number	9
DOIs	https://doi.org/10.1149/1.3606487
State	Published - 2011

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

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title = "Catalytic electrochemical reduction of CO2 in ionic liquid EMIMBF3Cl",

abstract = "A novel ionic liquid EMIMBF3Cl that contains a BF 3Cl- anion has been synthesized. This is the first report of an ionic liquid with a BF3Cl- anion. It was found that CO2 gas can be dissolved and electrochemically reduced at ambient pressure, and room temperature in the ionic liquid EMIMBF3Cl. The reduction of CO2 occurred at a relatively less negative electrode potential of -1.8 V vs. silver wire, compared to previous reported values that are between -2.4 and -2.0 V. The reduction current density can be as high as ∼5.7 mA/cm2. The BF3Cl- anion may catalyze the CO2 reduction by forming a Lewis acid-base adduct BF 3-CO2.",

author = "Snuffin, {Laura L.} and Whaley, {Louis W.} and Lei Yu",

year = "2011",

doi = "10.1149/1.3606487",

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T1 - Catalytic electrochemical reduction of CO2 in ionic liquid EMIMBF3Cl

AU - Snuffin, Laura L.

AU - Whaley, Louis W.

AU - Yu, Lei

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N2 - A novel ionic liquid EMIMBF3Cl that contains a BF 3Cl- anion has been synthesized. This is the first report of an ionic liquid with a BF3Cl- anion. It was found that CO2 gas can be dissolved and electrochemically reduced at ambient pressure, and room temperature in the ionic liquid EMIMBF3Cl. The reduction of CO2 occurred at a relatively less negative electrode potential of -1.8 V vs. silver wire, compared to previous reported values that are between -2.4 and -2.0 V. The reduction current density can be as high as ∼5.7 mA/cm2. The BF3Cl- anion may catalyze the CO2 reduction by forming a Lewis acid-base adduct BF 3-CO2.

AB - A novel ionic liquid EMIMBF3Cl that contains a BF 3Cl- anion has been synthesized. This is the first report of an ionic liquid with a BF3Cl- anion. It was found that CO2 gas can be dissolved and electrochemically reduced at ambient pressure, and room temperature in the ionic liquid EMIMBF3Cl. The reduction of CO2 occurred at a relatively less negative electrode potential of -1.8 V vs. silver wire, compared to previous reported values that are between -2.4 and -2.0 V. The reduction current density can be as high as ∼5.7 mA/cm2. The BF3Cl- anion may catalyze the CO2 reduction by forming a Lewis acid-base adduct BF 3-CO2.

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Catalytic electrochemical reduction of CO₂ in ionic liquid EMIMBF₃Cl

Abstract

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