Efficient CO2 Utilization via a Hybrid Na-CO2 System Based on CO2 Dissolution
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- Efficient CO2 Utilization via a Hybrid Na-CO2 System Based on CO2 Dissolution
- Kim, Changmin; Kim, Jeongwon; Joo, Sangwook; Bu, Yunfei; Liu, Meilin; Cho, Jaephil; Kim, Guntae
- Issue Date
- CELL PRESS
- ISCIENCE, v.9, pp.278
- Carbon capture, utilization, and sequestration technologies have been extensively studied to utilize carbon dioxide (CO2), a greenhouse gas, as a resource. So far, however, effective technologies have not been proposed owing to the low efficiency conversion rate and high energy requirements. Here, we present a hybrid Na-CO2 cell that can continuously produce electrical energy and hydrogen through efficient CO2 conversion with stable operation for over 1,000 hr from spontaneous CO2 dissolution in aqueous solution. In addition, this system has the advantage of not regenerating CO2 during charging process, unlike aprotic metal-CO2 cells. This system could serve as a novel CO2 utilization technology and high-value-added electrical energy and hydrogen production device.
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