In contrast, the second-order model was used to profile the chemisorption by covalent forces or ion exchange, which involved the valence–balance of the electrons that are shared between the adsorbent and the adsorbate
In contrast, the second-order model was used to profile the chemisorption by covalent forces or ion exchange, which involved the valence–balance of the electrons that are shared between the adsorbent and the adsorbate