Kawasaki Mitsuo, Morita Tatsuo, Tachibana Kunihide
Department of Molecular Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan.
PM Dimensions Corporation, 3-17-7 Goryo Minegado-cho, Kyoto 610-1103, Japan.
Sci Rep. 2015 Oct 6;5:14737. doi: 10.1038/srep14737.
Carbon fixation refers to the conversion of carbon dioxide (CO2) to organic materials, as commonly performed in nature through photosynthesis by plants and other autotrophic organisms. The creation of artificial carbon fixation processes is one of the greatest challenges for chemistry to solve the critical environmental issue concerning the reduction of CO2 emissions. We have developed an electricity-driven facile CO2 fixation process that yields performic acid, HCO2OH, from CO2 and water at neutral pH by dielectric barrier discharge with an input electric power conversion efficiency of currently 0.2-0.4%. This method offers a promising future technology for artificial carbon fixation on its own, and may also be scaled up in combination with e.g., the post-combustion CO2 capture and storage technology.
碳固定是指将二氧化碳（CO₂）转化为有机物质的过程，这在自然界中通常由植物和其他自养生物通过光合作用来完成。人工碳固定过程的创建是化学领域面临的最大挑战之一，旨在解决与减少CO₂排放相关的关键环境问题。我们已经开发出一种电力驱动的简便CO₂固定方法，该方法通过介质阻挡放电，在中性pH条件下由CO₂和水生成过氧甲酸（HCO₂OH），目前输入电功率转换效率为0.2 - 0.4%。这种方法本身为人工碳固定提供了一项很有前景的未来技术，并且还可以与例如燃烧后CO₂捕集与封存技术相结合进行扩大规模应用。
