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| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-417 |
| Subject |
Stable Methylammonium Intercalated 1T' MoS2 Nanosheets for Efficient Electrocatalytic Hydrogen Evolution |
| Authors |
InHye Kwak, Kwon Ik Seon, GaBin Jung, Yeron Lee, jeunghee park1,*
Micro Device Engineering / Microdevices, Korea University, Korea
1Department of Materials Chemistry, Korea University, Korea
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| Abstract |
Two-dimensional layered structures have recently drawn worldwide attention because of their intriguing catalytic properties. Herein, we report the 1T'-phase ammonium (A)- and methylammonium (MA)-intercalated MoS2 nanosheets, Synthesized by one-step hydrothermal reaction. The MA-intercalated MoS2 nanosheets exhibit excellent stability, as well as higher catalytic activity toward the hydrogen evolution reaction than the A-intercalated MoS2. First-principles calculations were used to assess the relative stabilities of the 2H and 1T' phases, showing a trend of 2H -> 1T' phase conversion with increasing concentrations of A or MA. The calculation consistently predicted a higher stability of the MA-intercalated complex, due to reduced repulsion between the positively charged MA, which underlies the excellent catalytic performance. |
| E-mail |
inhye318@naver.com |
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121st General Meeting of the KCS