Porous TiB2 electrodes for the alkali metal thermoelectric convertor

Porous TiB2 electrodes for the alkali metal thermoelectric convertor have been developed and tested. The electric performance of these new electrodes turned out to be superior to that of other electrodes known so far, like TiN or Mo. Because of its low reactivity, TiB2 (like TiN) can be expected to show a long-time stable operation. The performance of TiB2 electrodes of different sizes is described, using current-voltage relationships and impedance measurements.