| 초록 |
The electrolysis of water recently attracts attention because hydrogen can be easily produced under eco-friendly conditions. The noble metal catalysts have excellent catalytic properties for the electrolysis of water, however, their high cost remains a huddle. For these reasons, cheap and good active transition metal catalysts have been widely explored. Chalcogenide has a high applicability as a catalyst, although it has to be synthesized at extreme conditions. In this study, we fabricated core-cell nanoparticles composed of NiSe or CoSe shell layer with amorphous sellenium (α-Se) core through the Kirkendall effect. The core-shell structure was examined using SEM and EDX and further electrochemical analysis was performed to verify catalytic electrolysis of water. Uniform core-shell nanoparticles with NiSe or CoSe layers were prepared at room temperature and atmospheric condition, These charcogenide nanoparticles could be applied as an electrolysis catalyst. |
