Process for increasing the activity of porous fuel cell electrodes
Abstract
Abstract A PROCESS FOR INCREASING THE ACTIVITY OF POROUS ELECTRODES WHICH CONTAIN TUNGSTEN CARBIDE HAVING THE COMPOSITION WC1-X'' WHERE 0$C$0.2, AND WHICH ARE USED IN CONNECTION WITH THE ANODIC OXIDATION OF CARBON MONOXIDE, HYDROGEN OR HYDROGEN-CONTAINING FUELS IN FUEL CELLS THAT UTILIZE AN ACID ELECTROLYTE. THE PROCESS INVOLVES PLACING AT LEAST ONE SURFACE OF AT LEAST ONE OF THE UNTREATED TUNGSTEN CARBIDE ELECTRODE IN AN ALKALINE ELECTROLYTE CONTAINING A REDUCING AGENT. A POTENTIAL OF UP TO +850 MV., MEASURED WITH RELATION TO A HYDROGEN ELECTRODE IN THE SAME ELECTROLYTE IS APPLIED TO THE TUNGSTEN CARBIDE ELECTRODE. THE POTENTIAL IS MAINTAINED FOR A PERIOD OF UP TO TWENTY HOURS. THE INVENTION ALSO INCLUDES THE ACTIVATED TUNGSTEN CARBIDE ELECTRODE.
Inventors
- 👤 K Benda
- 👤 H Binder
- 👤 W Faul
- 👤 G Sandstede
Bibliographic Details
Claims Analysis
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