Thermal effects of water intrusion in hydrophobic nanoporous materials.
Liquid water intrusion in hydrophobic nanoporous silicalite-1, a pure siliceous zeolite, in isothermal conditions under high pressure produces an endothermic effect. After intrusion, confined water in zeolite pores is in a different state from that of the liquid bulk water. Such forced intrusion also chemically modifies the material and tends to render it slightly more hydrophilic.
Karbowiak
Thomas
T
Institut Carnot de Bourgogne, UMR 5209 CNRS-Universitè de Bourgogne, 9 Av. Savary, BP 47870, F-21078 Dijon, France.
Paulin
Christian
C
Ballandras
Anthony
A
Weber
Guy
G
Bellat
Jean-Pierre
JP
D002151:Calorimetry; D057927:Hydrophobic and Hydrophilic Interactions; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D016062:Porosity; D011312:Pressure; D013499:Surface Properties; D013696:Temperature; D014867:Water / Q000737:chemistry*; D017641:Zeolites / Q000737:chemistry*
D014867:Water; D017641:Zeolites