Liquid Metal Electrodes for Scalable CO<sub>2</sub> Electrocatalytic Reduction to Carbonaceous Materials
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초록
내용
Innovative technologies are urgently demanded for capturing and converting CO2 into value-added species to mitigate the negative effects of this greenhouse gas and support a sustainable carbon cycle. Currently, low melting point liquid metals have emerged as an important research topic as they exhibit a strong potential to contribute to carbon neutrality. Liquid metals have unique physicochemical properties and high catalytic activities, high thermal and electrical conductivity, non-toxicity, and exceptional resistance to coking that make them promising candidates for catalysis, flexible circuits, self-healing superconductors and energy storage applications. A liquid metal electrode enables continuous electrocatalytic reduction of CO2 to solid carbonaceous species at room-temperature. The solid products are easily isolated, transported and stored. Here, we present several large-area(-cm2) liquid metal electrodes with scaled-up setups and discuss the results and issues.