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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 18일 (목요일) 11:00~12:30 |
| Code |
MAT.P-336 |
| Subject |
Two-dimensional Transition Dichalcogenide Nanosheets for Photoelectrochemical Hydrogen Production. |
| Authors |
Jisun Yoo, Jeunghee Park*
Department of Materials Chemistry, Korea University, Korea
|
| Abstract |
Photocatalysts for hydrogen evolution reactions (HER) are central to key renewable energy technologies of water splitting. Despite tremendous effort, the development of low-cost electrode catalysts with high activity remains a great challenge. In this study, we report the transition metal dichalcogenide (TMD) layered two-dimensional (2D) nanosheets as excellent photocatalysts for water-splitting reactions. We fabricated a Si-based photocathode by depositing the TMDs nanosheets such as MoS2, MoSe2, MoTe2, etc., onto an p-type Si nanowire array, showing efficient photoelectrochemical (PEC) hydrogen evolution under visible light irradiation. Band alignment suggested that the efficiency of the PEC cell is ascribed to the buildup of the space charge region in the heterojunction, as well as the band bending of Si at the electrolyte interface. |
| E-mail |
rtwiamvt@naver.com |
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122nd General Meeting of the KCS