A controllable membrane to pull carbon dioxide out of exhaust streams

A system developed by chemical engineers could provide a way of continuously removing carbon dioxide from a stream of waste gases, or even from the air. The key component is an electrochemically assisted membrane whose permeability to gas can be switched on and off at will, using no moving parts and relatively little energy.

source https://www.sciencedaily.com/releases/2020/10/201016145841.htm