Electrolytic perovskites

Details Electrolytic perovskites Electrolytic perovskites

2006-02-07

2006-02-07

Kopec, Mark (Department: 1751)

Compositions

Electrically conductive or emissive compositions

Metal compound containing

C252S519540, C501S134000, C423S594150, C423S594160, C423S594170, C429S006000

Reexamination Certificate

active

06994807

ABSTRACT:
An electrolytic perovskite and method for synthesizing the electrolytic perovskite are described herein. Basically, the electrolytic perovskite is a solid that has an ion conductivity greater than 10−5S/cm in a temperature range of 0–400° C., wherein the ion is Li+, H+, Cu+, Ag+, Na+or Mg2+. For example, Li1/8Na3/8La1/4Zr1/4Nb3/4O3(5.26×10−4S/cm) and Li1/8K1/2La1/8NbO3(2.86×10−3S/cm) are two electrolytic perovskites that have been synthesized in accordance with the present invention that have a high Li+conductivity at 20° C. Both compositions have been confirmed in experiments to conduct Ag+and H+ions, as well. The present invention also includes a solid proton conductor that can be formed from the electrolytic perovskite by replacing the ions located therein with protons. The electrolytic perovskite and solid proton conductor can be used in a wide variety of applications or devices including, for example, a fuel cell, a membrane reactor, an amperometric hydrocarbon sensor or a steam electrolysis application.

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