Surface Chemistry
Adsorption: Phenomenon of accumulation of molecules at the surface of a solid, which results in a higher concentration on the surface than in the bulk
- Adsorbate: The substance which gets adsorbed onto a surface
- Adsorbent: The substance on which adsorption takes place
- Desorption: The phenomenon of removing an adsorbate from an adsorbent
- Types of adsorption –
- Physical adsorption or physisorption
- Chemical adsorption or chemisorption
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Physisorption |
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Chemisorption |
1. |
Arises because of van der Waals forces |
1. |
Arises because of chemical forces |
2. |
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