https://scholars.lib.ntu.edu.tw/handle/123456789/625443
標題: | Using Exciton/Trion Dynamics to Spatially Monitor the Catalytic Activities of MoS2during the Hydrogen Evolution Reaction | 作者: | Hsiao F.-H Chung C.-C Chiang C.-H Feng W.-N Tzeng W.-Y Lin H.-M Tu C.-M Wu H.-L Wang Y.-H Woon W.-Y Chen H.-C Chen C.-H Lo C.-Y Lai M.-H Chang Y.-M Lu L.-S Chang W.-H CHUN-WEI CHEN Luo C.-W. |
關鍵字: | exciton dynamics; hydrogen evolution reaction (HER); monolayer MoS2; time-resolved microscopy; trion dynamics | 公開日期: | 2022 | 卷: | 16 | 期: | 3 | 起(迄)頁: | 4298-4307 | 來源出版物: | ACS Nano | 摘要: | The adsorption and desorption of electrolyte ions strongly modulates the carrier density or carrier type on the surface of monolayer-MoS2catalyst during the hydrogen evolution reaction (HER). The buildup of electrolyte ions onto the surface of monolayer MoS2during the HER may also result in the formation of excitons and trions, similar to those observed in gate-controlled field-effect transistor devices. Using the distinct carrier relaxation dynamics of excitons and trions of monolayer MoS2as sensitive descriptors, an in situ microcell-based scanning time-resolved liquid cell microscope is set up to simultaneously measure the bias-dependent exciton/trion dynamics and spatially map the catalytic activity of monolayer MoS2during the HER. This operando probing technique used to monitor the interplay between exciton/trion dynamics and electrocatalytic activity for two-dimensional transition metal dichalcogenides provides an excellent platform to investigate the local carrier behaviors at the atomic layer/liquid electrolyte interfaces during electrocatalytic reaction. © 2022 American Chemical Society. All rights reserved. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85126137168&doi=10.1021%2facsnano.1c10380&partnerID=40&md5=02fdee66865d61315a6b5ec9f4017f87 https://scholars.lib.ntu.edu.tw/handle/123456789/625443 |
ISSN: | 19360851 | DOI: | 10.1021/acsnano.1c10380 | SDG/關鍵字: | Catalyst activity; Dynamics; Electrocatalysis; Electrolytes; Excitons; Field effect transistors; Hydrogen; Layered semiconductors; Molybdenum compounds; Sulfur compounds; Transition metals; Adsorption and desorptions; Electrolyte ion; Exciton dynamics; Hydrogen evolution reaction; Hydrogen evolution reactions; Monolayer MoS2; Time resolved microscopy; Trion; Trion dynamic; ]+ catalyst; Monolayers |
顯示於: | 材料科學與工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。