Introducing technology to recover carbon dioxide as the battery is charged and discharged

As part of efforts to curb climate change, technologies are being developed around the world to capture carbon dioxide in the atmosphere. Meanwhile, a research team at the University of Cambridge has announced a technology that efficiently recovers carbon dioxide using a 'process like battery charging and discharging.'

Enhancing the capacity of supercapacitive swing adsorption CO2 capture by tuning charging protocols --Nanoscale (RSC Publishing)
https://doi.org/10.1039/D2NR00748G

Low-cost battery-like device absorbs CO2 emissions while it charges | University of Cambridge
https://www.cam.ac.uk/research/news/low-cost-battery-like-device-absorbs-co2-emissions-while-it-charges

Carbon dioxide recovery technology is attracting attention as a useful technology for controlling climate change, but existing technologies have problems such as 'a large amount of energy is required to recover carbon dioxide' and 'recovery equipment is expensive'. I am. To solve these challenges, a research team at the University of Cambridge has worked to develop an inexpensive and highly efficient carbon dioxide recovery device.

The research team has developed a carbon dioxide recovery device with a structure similar to a battery. It is possible to collect carbon dioxide on the central plate by alternately applying positive and negative charges to this device. In addition, the research team examined the timing of switching between positive and negative voltage magnitudes, and derived a method of applying voltage that maximizes the amount of carbon dioxide recovered.

When carbon dioxide is recovered by the above method, it is possible to recover more carbon dioxide with less energy than the recovery method using the mainstream (PDF link) amine at the time of article creation.

'We want to use materials that aren't harmful to the environment and need to be discarded less frequently,' the research team said. We are also making efforts to reduce the environmental load of the carbon dioxide recovery device itself, such as by using carbon dioxide.

The research team will continue research to clarify the details of the mechanism by which the developed carbon dioxide recovery device works.