Knowra Chemisorption Chemisorption Chemisorption is adsorption in which an adsorbate forms chemical bonds with a surface, often creating a distinct surface chemical species. It is typically more specific and stronger than physical adsorption.
Adsorption : The accumulation of atoms, ions, or molecules at the surface of a material. Chemisorption is the bond-forming type of this broader surface process.
Physisorption : Adsorption caused primarily by intermolecular forces rather than chemical bond formation. It contrasts with chemisorption in bonding strength, specificity, and typical reversibility.
Haber–Bosch process : An industrial process that synthesizes ammonia from nitrogen and hydrogen over an iron-based catalyst. Nitrogen chemisorption on iron is a central step in catalytic ammonia synthesis.
Surface science : The study of physical and chemical phenomena at interfaces, especially solid surfaces. Chemisorption is a core process studied at solid interfaces.
Catalyst poisoning : The loss of catalytic activity caused by substances that bind to and block active sites. Strong chemisorption can make poisons difficult to remove from catalytic surfaces.
Chemical bond : An attractive interaction that holds atoms or ions together in a molecule, crystal, or other structure. Chemisorption occurs when adsorbates bond to surface atoms.
Absorption (chemistry) : A process in which one substance enters the bulk of another substance. Unlike chemisorption, absorption places material within a phase rather than binding it at a surface.
Heterogeneous catalysis : Catalysis in which the catalyst and reacting substances occupy different phases, often with reactions at a solid surface. Chemisorption commonly anchors reactants during reactions on solid catalysts.
Adsorbate : An atom, ion, or molecule that accumulates on a surface through adsorption. The adsorbate is the species that forms chemical bonds with the surface.
Surface reconstruction : A rearrangement of surface atoms that changes a crystal's surface structure from its bulk termination. Adsorbate bonding can trigger or stabilize rearranged surface structures.
Show all 28