Hydration-thermal cycles

Pineri, M., Volino, R, and Escoubes, M. 1985. Evidence for sorption-desorption phenomena during thermal cycling in highly hydrated perfluorinated. Journal Polymer Sci., Polymer Phys. 23 2009-2020. 

Load cycling Cathode catalyst surface area loss Membrane pinhole formation Catalyst dissolution by potential cycle Mechanical stress by hydration, pressure and thermal cycle... 

Dickens, G.R., Modeling the Global Carbon Cycle with a Gas Hydrate Capacitor Significance for the Latest Paleocene Thermal Maximum. Natural Gas Hydrates Occurrence, Distribution, and Detection (Pauli, C.K., Dillon, W.P., eds.), AGU, Washington, DC, Geophys. Monogr. Ser. 124, pp. 19-38 (2001). 

That is, the increased solvation around the newly formed Fe ", arising in part from readjustment of the solvent, which would be required to stabilize this Fe + is quite considerable. From a Born cycle and the relevant thermal data, this heat of hydration is found equal to [A//hyd(H ) — 326 Kcal]. If we accept Latimer s value for AiySydCH" ) = —260 Kcal/mole, this gives the net change in heat of hydration for Fe++-> Fe3+as —596 Kcal/mole. A similar problem is associated with the shift of H2O around the newly formed Ce " ion. 

Methane clathrate decomposition has been implicated in the Latest Paleocene Thermal Maximum (—55 Ma ago) by an extraordinary injection of isotopically light carbon into the carbon cycle (Dickens, 2000, 2001a) and in Quaternary interstadials as indicated by observations of isotopically light foraminifera in Santa Barbara Basin sediments (Kennett et al., 2000). Dickens (2001a) compares the functioning of the CH4 hydrate to a bacterially mediated capacitor. 

Dickens G. R. (2001) Modeling the global carbon cycle with a gas hydrate capacitor significance for the Latest Paleocene Thermal Maximum. In Natural Gas Hydrates Occurrence, Distribution, and Detection Geophysical Monograph 124 (eds. C. K. Pauli and W. P. Dillon). American Geophysical Union, Washington, DC, pp. 19—38. 

---