How should i interpret the BET datas if the surface area and pore volume increases when the metal is doped on support material while pore size decreases (from mesoporous to microporous)? In addition, after the use of catalyst, all of surface area, pore volume and pore size decrease. Do you have any article recommendations about interpreting the BET results about metal-doped catalysts for gaining wider knowledge? It is harder as a chemical engineering student to interpret the characterization datas since no lectures are given about it. I'll appreciate your answers!! Kind regards.
Dear Gülüse Yaren Keleş the reduced pore size indicates catalyst dispersion within support pores, which possibly leads to meso-micropore formation. Where micropore formation enhances the surface area. While decrease in pore volume, pore size, and surface area over time indicates structural changes such as sintering, pore blockage by reaction byproducts, or support degradation, which eventually results in performance degradation. Best
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