Several factors affect adsorption energies, including:
1. Surface Structure: The crystallographic orientation and defects on the surface can significantly influence adsorption energies. 2. Chemical Composition: The type of atoms and their arrangement in the adsorbent material play a crucial role. 3. Adsorbate Properties: The size, shape, and electronic properties of the adsorbate can affect how it interacts with the surface. 4. Environmental Conditions: Temperature, pressure, and the presence of other molecules can alter adsorption energies.