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|
| Type |
Poster Presentation |
| Area |
Environmental Energy |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
ENVR.P-660 |
| Subject |
Mesoporous Graphene Networks for Efficient Solar Steam Generation |
| Authors |
Kwanghyun Kim, Ji-Hyun Jang*
Eco-Friendly Energy Engineering, Ulsan National Institute of Science and Technology, Korea
|
| Abstract |
Even though it is one of the most promising techniques to solve the global water shortage, solar steam generation still has a poor efficiency issue. To improve the solar-to-vapor conversion efficiency, a new photoabsorber based on three-dimensional mesoporous graphene networks (3DGNs) with a high solar absorption property, high surface area, and easy pathways for escaping of generated vapors has been developed. In addition, the device utilized a wood post to deliver water by a capillary force and to prevent heat loss to bulk water by thermal insulation. It has shown greatly enhanced solar-to-vapor conversion efficiency of about 91.8% under one sun illumination and excellent desalination efficiency of five orders salinity decrement. Since this highly efficient solar desalination device is made by mass-producible 3DGNs and the earth-abundant wood piece, it provides a straightforward way to efficiently supply worldwide fresh water. |
| E-mail |
khkim313@unist.ac.kr |
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121st General Meeting of the KCS