The decrease in surface area at high temperatures for the steam treatment and higher concentrations of H3PO4 might be due to the breakdown, restructuring and constriction of the pore walls and pore apertures of the activated carbons.
The decrease in surface area at high temperatures for the steam treatment and higher concentrations of H3PO4 might be due to the breakdown, restructuring and constriction of the pore walls and pore apertures of the activated carbons.