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Efficient CO₂ Utilization via a Hybrid Na-CO₂ System Based on CO₂ Dissolution.

ABSTRACT: 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.

SUBMITTER: Kim C

PROVIDER: S-EPMC6258365 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Efficient CO2 Utilization via a Hybrid Na-CO2 System Based on CO2 Dissolution.

Kim Changmin C Kim Jeongwon J Joo Sangwook S Bu Yunfei Y Liu Meilin M Cho Jaephil J Kim Guntae G

iScience 20181101

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 fr ...[more]

PMID: 30447646

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