The article focuses on the development of novel electrocatalysts for electrocatalytic water splitting and hydrogen fuel cells to meet the growing demand for clean energy technologies. Researchers have been exploring ways to enhance the efficiency, durability, and cost-effectiveness of Pt-based electrocatalysts, which are currently considered the most effective for the hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR). The high cost of platinum has hindered its large-scale commercial application, leading to the urgent need for catalysts with reduced platinum usage. One promising strategy involves coating Pt nanoparticles with an ultra-thin carbon layer, which has been shown to improve the stability and performance of Pt-based catalysts by protecting them against degradation processes. The thickness of the carbon layer is crucial, as excessively thick coatings can hinder catalytic activity, while thin layers may not provide sufficient protection. The article introduces the synthesis of Pt@NCL-CNF heterojunction catalysts, where nitrogen-doped carbon layers cover Pt particles distributed on carbon nanofibers, resulting in enhanced HER and ORR performance. Structural analysis through scanning electron microscopy and transmission electron microscopy confirms the successful design of Pt@NCL-CNF catalysts with no agglomeration. The Pt@NCL-CNF catalysts exhibit superior electrochemical performance compared to traditional Pt/C catalysts in pH-universal electrolytes, highlighting the potential of this innovative approach for future Pt-based electrocatalyst design.