Adsorbent for Water Adsorption and Desorption
AssigneeKorea Research Institute of Chemical Technology
InventorsJong-San Chang, Sung-Hwa Jhung, Young-Kyu Hwang
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Abstract
The present invention relates to methods for absorbing and/or desorbing water by contacting water with hybrid inorganic-organic material having high surface area, and pores with the size of molecules or nanometers. More specifically, the water adsorbent has facile adsorption-desorption even below 100° C., having high adsorption capacity, and having high desorption capacity when it is heated up to the temperature below 100° C. The adsorbent of the present invention can be applied to a humidifier, dehumidifier, cooler and heater. The present invention also relates to a technology to control humidity using the adsorbent.
Claims21
1-14. (canceled)
A method for adsorbing and/or desorbing water, comprising:
- contacting water with a hybrid inorganic-organic material that:
- a) is synthesized from a reaction between metal precursors and ligands selected from organic compounds;
- and
- b) has a surface area larger than 1000 m2/g;
- and
- c) has a pore dimension of 0.5 nm-2 nm.
A method of making a water adsorbent, comprising:
- a) mixing metal precursors, ligands and solvents to prepare a reactant mixture;
- and
- b) heating the reactant mixture at a temperature above about 100° C. to convert the reactant mixture to a hybrid inorganic-organic material that has a surface area larger than 1000 m2/g, and a pore dimension of 0.5-2 nm.
Dependencies are inferred from the claim text.