Synthesis, characterization and biochemical applications of new generation nanocatalysts for sodium borohydride hydrolysis

Obtaining Hydrogen from NaBH4 for Hydrogen energy, which is a renewable energy source, is an important alternative in terms of eliminating inefficiencies and reducing carbon emissions and costs. The production of nanoparticles used for hydrolysis reactions by biosynthesis method has attracted much attention due to its environmentally friendly structure and biocompatibility. In this study, it is aimed to synthesize Palladium-Platinum (PdPt), Palladium-Silver (PdAg), Platinum-Silver (N@PtAg), Palladium-Zinc Oxide (Pd@ZnO) nanoparticles with the green synthesis method using Pd, Pt, Ag and Co metal salts and use them as a catalyst to obtain hydrogen from the NaBH4 hydrogen source. The synthesized nanoparticles were characterized using techniques such as TEM, AFM, SEM, FTIR, XRD and UV-Vis for nanoparticle sizes, surface and morphological properties. The catalytic activity of the nanoparticles was determined by performing NaBH4 hydrolysis experiments. According to the results obtained, TOF (Turn over frequency), activation energy, entropy and enthalpy values were calculated supported by graphs. It has been determined that nanobiocatalysts synthesized through green synthesis are very effective catalysts for hydrogen production. In addition to the catalytic applications of PdPt, PdAg, N@PtAg nanobiocatalysts, their biological activities such as anticarcinogenic and antibacterial have also been investigated to support the environmental approach. As a result of the experimental data, it was observed that PdPt, PdAg, N@PtAg bimetallic nanoparticles have a significant effect in terms of anticarcinogenic and antibacterial activity, and it was determined that the green synthesis of nanobiocatalysts has significant advantages over chemical approaches. The biogenic nanoparticles synthesized in this study suggest the design of bio-based metallic catalysts with high catalytic performance to prevent environmental pollution.