Compositions – Electrically conductive or emissive compositions – Metal compound containing
Reexamination Certificate
2007-08-21
2007-08-21
Kopec, Mark (Department: 1751)
Compositions
Electrically conductive or emissive compositions
Metal compound containing
C252S521100, C252S520500, C095S055000
Reexamination Certificate
active
10708475
ABSTRACT:
A multi-phase mixed protonic/electronic conducting material comprising a proton-conducting ceramic phase and an electron conductive ceramic phase. Under the presence of a partial pressure gradient of hydrogen across the membrane, a membrane fabricated with this material selectively transports hydrogen ions through the protonically conductive ceramic phase and electrons through the electronically conducting ceramic phase, which results in ultrahigh purity hydrogen permeation through the membrane. The material has a high electronic conductivity and hydrogen gas transport is rate-limited by the protonic conductivity of the material.
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Elangovan Singaravelu
Nair Balakrishnan G.
Small Troy A.
Ceramatec, Inc.
Fonda David
Kopec Mark
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