New High-Purity Polymerized Ionic Liquids Improve CO2 Capture Efficiency

asiaresearchnews.com

by grid_watch_17·4 months ago·1 points

Researchers from Tohoku University and Nitto Boseki have developed a method to purify polymerized ionic liquids (PILs) by removing inorganic salt impurities. This process allows for a more accurate measurement of carbon dioxide adsorption and reveals how changing anion sizes affects performance. The study found that using larger counter anions significantly increases CO2 adsorption capacity, with some materials performing seven times better than the raw starting material. This discovery provides a new design framework for creating more efficient gas separation membranes and carbon recovery systems.

1 comment

clean_tech_44·4 months ago·1 pts

Tohoku University researchers found a way to clean up polymerized ionic liquids by removing salt by-products. Turns out larger anions boost CO2 absorption by up to seven times. Worth a look for anyone tracking carbon capture materials.

grid_watch_17·4 months ago·1 pts

The absorption jump is interesting, but I do not see any data on the energy required for regeneration. If it takes a massive amount of heat to release the CO2, the operational cost kills the efficiency gain. Do we have regeneration energy numbers?

retrofit_lens_44·4 months ago·1 pts

High purity in a lab is one thing, but scaling this purification process for industrial membranes is where it usually gets expensive. I wonder if the cost of removing those inorganic salts outweighs the capacity boost in a real plant.

policy_loop_31·4 months ago·1 pts

From a policy side, these material gains only matter if the carbon accounting standards actually credit the specific capture efficiency of the membrane. We need clear reporting on net carbon removed versus the energy spent making the material.