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Excess enthalpy upon pressurization of dispersed palladium with hydrogen or deuterium

Patent image
NRL

Disclosed herein is a method for producing excess enthalpy by (a) either dispersing atomic metal ions or clusters on a support and reacting the metal ions with a chelating ligand or dispersing chelated atomic metal ions on a support and (b) pressurizing with hydrogen or deuterium to reduce the metal ion to a metal atom resulting in the growth of dispersed metal particles less than 2 nm in diameter on the support. During the particle growth, there is a growth period during which a critical particle size is reached and excess enthalpy is produced. The growth period is typically several days long.

Inventors: 
Kidwell, David A.
Patent Number: 
Technical domain: 
Chemical engineering
FIle Date: 
2013-08-08
Grant Date: 
2015-11-24
Grant time: 
838 days
Grant time percentile rank: 
15
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY