Operation of a Tubular Direct Carbon Fuel Cell with a Dry Carbon Gasifier

摘要

A carbon gasified direct carbon fuel cell (DCFC) was fabricated and investigated for generating effective carbon fuel cell reactions. Anode-supported tubular DCFC cells with a 45 cm~2 active electrode area were used to manufacture the DCFC, which was coupled with a dry gasifier induced by a reverse Boudouard reaction. Activated carbon (BET area 1800 m~2/g) powder was mixed with K2CO3 powder (5 wt.%) and used to fill a dry gasifier as a solid carbon fuel, and pure CO2 gas was supplied to the gasifier. The CO fuel generated by the reverse Boudouard reaction in the dry gasifier increased the performance of the DCFC. The tubular DCFC single cell showed a maximum power of 6.95 W at 750 °C. The results indicate that the fabricated tubular DCFC is a promising power generation system candidate for many practical applications, such as residential power generation (RPG) and stationary power systems.