초록 |
Efficient electrochemical water splitting to hydrogen and oxygen is considered a promising technology to overcome environmental problems resulted from fossil fuel energy consumption. Graphitic carbon nitride (g-C3N4) is one of the most stable allotrope in ambient conditions, and it has very attractive properties for catalysts such as high chemical stability behavior. By introducing metal ions (e.g., Fe3+, Zn2+) into g-C3N4, electronic structures of g-C3N4 can be modified and provide way to tune catalytic properties. In this work, Fe-doped g-C3N4 on Ni foam was prepared and studied its catalytic performances for OER. The catalyst exhibits very low overpotential (~230 mV) to achieve a current density of 10 mA cm-2 for OER and good stability in alkaline solution. |