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Table. 1.

Characteristics of physical adsorption and chemical adsorption.

Physisorption Chemisorption
Week, long range bonding Strong, short range bonding
Not surface specific Surface specific
ΔHads = 5~50 kJ/mol ΔHads = 50~500 kJ/mol
No surface reaction Surface reactions may take place
Multilayer adsorption Monolayer adsorption
Applied Science and Convergence Technology 2020;29:41~49
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