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A calorimetric adsorption study on the interaction of water with hydroxylated surface of γ-Al2O3

Research paper by Yu. I. Tarasevich, I. G. Polyakova, V. E. Polyakov

Indexed on: 01 Mar '00Published on: 01 Mar '00Published in: Theoretical and Experimental Chemistry



Abstract

The curve for the differential heat of adsorption of water on γ aluminum oxide has parts related to the interaction of the adsorbed water molecules with surface molecules of coordinated water and with acid and basic hydroxyl groups. Estimates have been made of the effective charges and hydration numbers for three of these adsorption centers. Textural changes have been observed in the γ-Al2O3 particles related to interplate swelling in the secondary sorbent packets into which the primary particles are linked.