ABSTRACT
Fuel cells are energy conversion devices that produce electricity via a chemical reaction in the cell and this happens as long as fuels are supplied. There are traditional hydrogen fuel cells,, liquid-fueled fuel cells and now solid-oxide fuel cells. The liquid-fueled fuel cells are an attractive alternative to the traditional hydrogen fuel cells since they eliminate the need to transport and store hydrogen gas, which is an expensive exercise. Whereas the solid oxide fuel cells (SOFCs) are quite clean and efficient power sources for the generation of electricity from different types of fuels such as hydrogen, natural gas, and biogas, and also do not have corrosive components. The SOFCs do not require costly metal electro-catalysts due to high operation temperatures in the . Initially fuel cells, batteries, etc. were conceived with liquid electrolytes that serve to transfer charge between the anode and the cathode. But a solid-oxide fuel-cell is a type of fuel cell in which solid oxide material is used as an electrolyte to conduct negative oxygen ions from the cathode to the anode. The electrochemical oxidation of the oxygen ions with hydrogen or carbon monoxide thus takes place on the anode side. New reactions have been proposed for SOFC, and the calculations have been done for the change in reaction enthalpy () and harvested energy. The reaction enthalpy is more than the reaction enthalpy obtained from the standard reaction in the SOFC. This means that we get more power from the cell and a large current flows in the load, resulting in a higher voltage across the load.
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