| 초록 |
The hydrogen energy has facilitation of storage, transfer and high energy density. Also when the energy combustion, the remaining is water. Currently, hydrogen production method usually use fuel energy. However to develop more eco-friendly method, solar energy will be used in this paper for energy source. First process is incidence of photon makes electron-hole pair. Then interface reaction of electrode and electrolyte occurs through charge transfer. To enhance solar-to-hydrogen conversion efficiency, the control about structure, surface and interface of electrode. In this paper, the control of surface will be focused. The way of hydrogen use is water-splitting which makes water to break to oxygen(OER) and hydrogen(HER). In this system, OER is more important part. To get higher OER makes to get higher STH conversion efficiency, for that the surface of electrode has less overpotential, high stability and high activity. |
