| 초록 |
The Molten Carbonate Fuel Cell (MCFC) has attracted special interest because of its high-fuel-to-electricity efficiency (60%), safety and pollution-free operation. The primary challenge is to construct the fuel cell stack which can operate at 600-650 oC without corrosion. The temperature fluctuations create micro-cracks and morphology changes in the electrolyte matrix. Many researchers focused on the utilization of rod-shaped lithium aluminate particles as a matrix material for MCFC, but the problem is the effective fabrication of rod-shaped γ-LiAlO2. To this end, for the first time we produce a surfactant-free, simple, large scale, highly thermally stable (1000 oC) γ-LiAlO2 nanorods by hydrothermal process. The as-obtained nanorods are having the diameter in the range of 40-200 nm and length 1-10 μm. The synthesis parameters such as, effect of hydrothermal temperature, effect of calcination temperature, effect of Li precursor and hydrothermal time has been studied and optimized. |
