Editing Zeolite (section)

===Solar energy storage and use===
Zeolites can be used to thermochemically store solar heat harvested from [[solar thermal collector]]s as first demonstrated by Guerra in 1978<ref>U.S. Pat. No. 4,269,170, "Adsorption Solar Heating and Storage System", Filed April 27, 1978, Inventor: John M. Guerra</ref> and for [[adsorption refrigeration]], as first demonstrated by Tchernev in 1974.<ref>U.S. Patent No. 4,034,569, Filed November 4, 1974, Inventor: Dimiter I. Tchernev</ref> In these applications, their high heat of [[adsorption]] and ability to [[hydrate]] and dehydrate while maintaining structural stability is exploited. This [[hygroscopic]] property coupled with an inherent [[exothermic]] (energy releasing) reaction when transitioning from a dehydrated form to a hydrated form make natural zeolites useful in harvesting waste heat and solar heat energy.{{Primary source inline|date=August 2021}}