| 초록 |
The method of producing hydrogen through water splitting is an eco-friendly, efficient, and economical. In this process, catalysts with excellent hydrogen evolution reaction (HER) activities and good stability are required. In this work, we prepared phosphorus-doped graphene nanoplatelets (PGnPs) using the mechanochemical reaction between the solid graphite and phosphorus pentoxide. And then, PGnPs was heat-treated at 700℃ for 2h under CO2 to increase surface area and pore size for improving the mass transfer of catalysts. We decorated Pt nanoparticles on PGnPs by using chemical reduction with a precursor of Pt. The catalytic activities of Pt/PGnPs is comparable to that of Pt/C catalysts. PGnPs had numerous active sites as well as the incorporation of phosphorus into the graphene improves the performance of HER. As a result, Pt/PGnPs electrocatalysts with high activities for the HER are valuable methods for enhancing and more stable catalysts in acidic media. |
