ZnCl 2 is a chemical agent that enhances its electrocatalytic activity. The activated biochar exhibited a high surface area, micropore structure, and oxygen-containing functional groups, ...

The results showed that the PEI-modified biochar, specifically PEI-600@MC, demonstrated exceptional CO 2 sorption capacity, reaching approximately 3.35 mmol/g at 0.1 MPa and 70 °C.