吸附 · Physisorption Van der vaals interactions Weak interaction AE=-0.1--1 eV/adsorbate Chemisorption Chemical bonds Covalent. ionic
11 11 吸附
催化剂表面的吸附能 Always ev lev/atom or molecule 96.5 kJ/mol 23.06 kcal/mol △E<0: bonding H2/Cu(1) Atomic chemisorption energy 2.00 器 △EH=-2.6eV Molecular chemisorption energy Cu-H distance(A) △EH22△EH△EH2as =2x(-2.62)-(-5.06)eV =-0.18eV
12 12 催化剂表面的吸附能