|
|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-556 |
| Subject |
Ternary Plasmonic Metal-Semiconductor Hierarchical Photocatalysts for Efficient Hydrogen Production |
| Authors |
Dae Han Wi, Jong Wook Hong1, Sang Woo Han*
Department of Chemistry, Korea Advanced Institute of Science and Technology, Korea
1Chemistry, University of Ulsan, Korea
|
| Abstract |
Solar energy conversion to chemicals through photocatalysis holds great promise for solving the energy and environment problems that are now being faced. Practical application, however is limited in terms of low light harvesting efficiency, fast charge recombination, and low stability of photocatalysts. Herein, we developed efficient solar energy harvesting platform, which is constructed with shaped controlled plasmonic metal and two types of semiconductors with complementary band structures. The plasmonic metal-semiconductor hybrids exhibited excellent hydrogen photocatalytic activity compared to various their counterparts. The hydrogen production enhancement is attributed to synergistic structural and compositional advantages of the plasmonic metal-semiconductor hybrids such as 1) efficient plasmon energy transfer, 2) wide range of light absorption, and 3) retardation of charge carriers by desirable migration based on intimated contact between constituents. |
| E-mail |
new334@kaist.ac.kr |
|
121st General Meeting of the KCS