Advanced Pt/Activated Nitrogen-functionalized Graphitic Nanoplatelets Electrocatalyst for Hydrogen Evolution Reaction
발표자
()
초록
내용
Producing hydrogen through water electrolysis is a critical aspect of sustainable energy technology. A key factor in enhancing the efficiency of this process is the developing catalysts with high activity and stability for the hydrogen evolution reaction (HER). In this work, nitrogen-functionalized graphitic nanoplatelets (NfGnP) were synthesized via a mechanochemical reaction between graphite and N2. Subsequently, the NfGnP were activated at 900 °C under a CO2 flow to increase the specific surface area and porosity. This activation process resulted in a high surface area, thereby maximizing the number of active sites available for HER. As a result, Pt/Act_NfGnP with a low Pt content (5.27 wt%) demonstrated superior performance compared to commercial Pt/C in both activity and stability for the HER. These improvements are attributed to nitrogen functionalization and CO2 activation, suggesting that Act-NfGnP could be a promising support for catalysts.