In this study, we investigate the catalytic performance of molybdenum sulfide (MoS) modified with either nickel (Ni) or platinum (Pt) nanoparticles as catalysts for the hydrogen evolution reaction (HER). The MoS was prepared on the TiO nanotube substrates via a facile hydrothermal method, followed by the deposition by magnetron sputtering of Ni or Pt nanoparticles on the MoS surface. Structural and morphological characterization confirmed the successful incorporation of Ni or Pt nanoparticles onto the MoS support. Electrochemical measurements revealed that Ni- and Pt-modified MoS catalysts exhibited enhanced HER activity compared to pristine MoS. Obtained catalysts demonstrated a low onset potential, reduced overpotential, and increased current density, indicating efficient electrocatalytic performance. Furthermore, the Ni or Pt-modified MoS catalyst exhibited remarkable stability during prolonged HER operation. The improved catalytic activity can be attributed to the synergistic effect between metal nanoparticles and MoS, facilitating charge transfer kinetics and promoting hydrogen adsorption and desorption. Incorporating Ni and Pt nanoparticles also provided additional active sites on the MoS surface, enhancing the catalytic activity.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11282300 | PMC |
| http://dx.doi.org/10.1038/s41598-024-67252-x | DOI Listing |
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