Abstract
Oxygen pump using a calcia stabilized zirconia solid electrolyte with silver electrodes has been made to pump out the impurity oxygen in commercial nitrogen gas. The ability as oxygen pump has been investigated by changing the applied voltage. The oxygen in the gas has been pumped out down to 10-13 atm at temperatures above 800°C when the applied voltage to the pump was fixed at 1.0V. From the experimental result, it is found that the oxygen pump in the present study is quite satisfactory for a long term use.
