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Many efforts have been focused in the development of high-energy-density power source to ever-increasing demand for means of powering portable device. Polymer electrolyte membrane fuel cells (PEMFC) are efficient and clean electrochemical power devices that have the potential for applications in energy conversion and energy storage. The PEMFC can be operated at the low temperature about 80°C and can be applied mobile electric source such as Laptop and Motor vehicle. After the invention of  fuel cell by e Sir Grove in 1839, Pt-based catalysts exhibit high activity as the native metal for the oxygen-reduction reaction (ORR). However, its deficiency and high price drive to develop new non–precious metal catalysts which are potentially less expensive and more abundant. In 1964, Jasinski observed catalytic activity of cobalt phthalocyanine to the ORR. Many methods have been tried to create practical non-precious metal catalysts (NPMCs). Catalysts were first obtained by adsorbing Fe-N4 or Co-N4 macrocycles on a carbon support and pyrolyzing the resulting material in an inert atmosphere. Transition metals such as Co and Fe to improve the performance will require a robust method for increasing the reactivity of the metal ion through ligation. In this study, we sprayed graphene on carbon paper (CP). The prepared graphene loaded carbon paper (GP/CP) was investigated as an electrocatalyst for oxygen reduction reaction (ORR) in PEMFC using cyclic voltammetry (CV) and electrochemical Impedance spectroscopy (EIS).

PEMFC; SPUTTERING; CATALYSTS