A fuel cell is a device for converting chemical energy into electricity ('Portable fuel cell systems', 2002). The electricity generation is by a chemical reaction between fuel and oxygen or any other oxidizing agent. Each fuel cell is made up of two electrodes, one negative and one positive, called, cathode and anode respectively. The chemical reaction in fuel cells takes place at this electrode. Fuel cells also contain an electrolyte which is responsible for carrying electrically charged particles between the electrodes. The reaction at the electrodes is fast tracked by a catalyst. Fuel cells are important in that they Continue reading...