Amine-mediated electrochemical reduction of CO₂ in a nonaqueous, Li-CO₂ battery ;
The development of effective CO₂ capture and conversion methods is not only crucial for mitigating rising global atmospheric CO₂ concentrations but also for exploiting atmospheric carbon dioxide as a potential source of C1 feedstock for the industrial synthesis of fuels and chemicals. Herein, we report a combined chemical-electrochemical device for postcombustion capture and subsequent conversion of CO₂ into a benign, solid alkali metalcontaining phase (lithium carbonate, Li2CO₃). The capture is accomplished in a non-aqueous battery electrolyte containing a molecular CO₂ sorbent, and the conversion is initiated at an electrode surface, which advantageously combines two conventionally separate approaches to CO₂ mitigation. In particular, the proposed system utilizes an amine, namely 2- ethoxyethylamine (EEA) in an organic electrolyte (dimethyl sulfoxide) to activate the CO₂ molecule via chemisorption prior to electrochemical reduction at a simple carbon electrode in a Li-CO₂ battery con......
【关 键 词】: Amine-mediated electrochemical reduction of CO₂ in a nonaqueous
, Li-CO₂ battery
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