Potassium hydroxide (KOH) or ZnCl2 are used to activate carbon materials such as biomass prior to carbonization and heat treatment. What is the nature of this chemical activation? What are the exact chemical reactions happening?
Yuri Mirgorod
Sodium hydroxide hydrolyzes fats and they are converted to fatty acids and glycerin. It also hydrolyses the cellulose to lower molecular fragments. In addition, proteins are also hydrolyzed by polyamide bonding. Zinc ions are part of the enzyme alcohol dehydrogenase. It is possible to enhance the action of proteins in the form of enzymes. All these reactions contribute to the preparation for carbonization. After such processing, it is possible to isolate useful low-molecular products from biomass.
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