There are various types of support materials for catalysts, such as the various kinds of activated carbon, alumina, and silica, all of which show differing improvements in the catalyst's performance and durability. However, because ORR mainly focuses on carbon-supported catalysts, increasing the carbon support material for the catalyst is the most critical step. Because of the instability of carbon support materials for catalysts due to its porous structure that interacts with active sites and creates a blockage that facilitates the degradation of catalysts, an investigation into non-carbon support has been emphasized to achieve higher stability in MEA than other carbon-supported catalysts. Therefore, an attempt to enhance the optimal loadings for ORR is developing. Compared to conventional carbon-supported nanoparticles on Pt/C catalysts that were already established, researchers are now focusing on the development of platinum-alloy nanostructure thin film (NSTF) catalysts for ORR. These catalysts are coated around the fuel cell, within electrodes and the electrolyte membrane. These PtNi alloys have proven to be more efficient catalysts than Pt/C due to their structure with no carbon support. Thus, researchers are focusing on the development of PtNi NSTF by determining the proper loading of particles on carbon needed for the catalysts, as there is an increased surface area with increased loading. As a result of the current progression on PtNi NSTF, it shows that PtNi NSTF exhibits a more specific and mass activity compared to Pt/C catalysts, proving that NSTF catalysts present a very promising system as a cathode material in PEM fuel cells . However, more research should focus on maintaining the same kinetics as typical Pt/C catalysts while maintaining the high stability NSTF-structured catalysts provide due to no carbon support.