https://www.jst.go.jp/pr/announce/20241108-2/index.html
https://onlinelibrary.wiley.com/doi/10.1002/adsu.202400489
A research team at Tohoku University, the National Institute of Advanced Industrial Science and Technology, and Utsunomiya University has demonstrated that the efficiency of electrochemical CO2 reduction reaction (CO2RR) can be significantly improved by using a high-temperature, high-pressure water environment (a hydrothermal reaction field).
Technology assessment showed that this process can be used to synthesize a “carbon negative” basic chemical (methanol) in which the amount of CO2 absorbed exceeds the amount of CO2 emitted, by using electricity derived from renewable energy sources as well as unused low-temperature waste heat from factories.