how can I increase the pore size for activated carbon? can you suggest any method to get large pore size?
thanks a lot
You can simply activate further your material by physical activation with steam. As physical activation is a mild gasification, all pores are broadened, so that the surface area first increases (as more pores are created), then decreases (as these pores become wider and wider).
Alain
I recommend for you to add ammoium phosphate into the material before activation.
The are a number of activators and templates for obtaining carbon with large pore size. however, I would give preference to MgO as a template for large pore size in the activated carbon. You can simply mix MgO with carbon precursor either in powder form or dispersing it in a solvent with carbon precursor. Followed by drying and carbonizing and then washing to remove MgO.
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