**1. Introduction**

The study of fuel cell is highly relevant to solving ongoing worldwide threats of pollution as well as meeting up with the future energy demands for technological advancement. Fuel cells have been proposed for use in automobiles as a replacement of the conventional internal combustion engines. Fuel cells produce power in an entirely different way compared to internal combustion engines and storage batteries. Fuel cell is an electrochemical system that works on reverse electrolysis combining hydrogen from fuel with oxygen from air to produce electric power directly. Heat and non-polluted water vapor are the only by-products of these systems. Internal combustion engines[3] are powered from the combustion of hydrocarbon fuel through the Carnot cycles. The combustion process releases harmful gases such as CO, CO2, SO2, etc., into the environment, polluting it and affecting the energy balance of the ecosystem through global warming and damaging the protective ozone layers. Conversely, batteries are chemical energy storage devices that only produce power intermittently, as they must be recharged after being exhausted. The recharging process is always lengthy and inconvenient.
