The research article explores the utilization of Platinum-Decorated Palladium Nanowires for room-temperature hydrogen detection. Hydrogen gas detection is crucial for safety monitoring in hydrogen-based systems, leak detection, and hydrogen fuel cell technology. Palladium nanowires (Pd NWs) are known for their high sensitivity to hydrogen gas at room temperature. To enhance their sensing properties, the researchers decorated Pd NWs with platinum nanoparticles (Pt NPs) to improve the detection of low concentrations of hydrogen. The study involved synthesizing the Pd NWs using a one-pot hydrothermal method and subsequently dispersing them in ethylene glycol with Pt(NO3)2 to create Pd@Pt NWs. These nanowires were then drop-cast onto a paper substrate, forming a conductive network that improved interaction with hydrogen. Post-treatment with UV-O light source enhanced sensor response by degrading surfactants and improving NW-analyte contact. Analysis using TEM, SEM, EDS, and XRD confirmed the efficient decoration of Pd NWs with Pt NPs, maintaining the crystalline structure. The study emphasizes the advantages of paper-based sensors over conventional IDE-based ones in terms of flexibility and cost-effectiveness. Overall, the research showcases the successful fabrication of Pd@Pt NW paper-based sensors for efficient hydrogen detection, underlining the importance of substrate choice for sensor performance and laying the groundwork for scalable sensor development.