[mapt]

What is that supposed to mean?

According to their calculations, they're getting 1-2mmol/g adsorption. That means 44-88g of CO2 captured per kilogram of adsorbent.

[danans]

My guess is that it means that the material can be reused by capturing/releasing/sequestering multiple times, and that number reflects how much C02 it can capture given how many cycles can be completed in one year.