Biochar activation using various activating agents like Zinc chloride and KOH ,potassium carbonate. Suggest activation routes other than the high temperature techniques?
Jithu Joseph generally depends on the purpose of the use of biochar. I would like to suggest you to read the article: Article Production and Utilization of Biochar: A Review
it depends whether you activated using ZnCl2 or KOH, temperature have a very important role since it helps to widen up the pore and increase surface structure.
here is a link
Article A brief commentary on activated carbon material as an effici...