journal article·2022-03-22

Using Exciton/Trion Dynamics to Spatially Monitor the Catalytic Activities of MoS2 during the Hydrogen Evolution Reaction

Fu-He Hsiao, Cheng-Chu Chung, Chun-Hao Chiang, Wei-Neng Feng, Wen-Yen Tzeng, Hung-Min Lin, Chien-Ming Tu, Heng-Liang Wu, Yu-Han Wang, Wei-Yen Woon, Hsiao-Chien Chen, Ching-Hsiang Chen, Chao-Yuan Lo, Man-Hong Lai, Yu-Ming Chang, Li-Syuan Lu, Wen-Hao Chang, Chun-Wei Chen, Chih-Wei Luo

ACS Nano· Volume 16· Issue 3
Publisher page

Abstract

The adsorption and desorption of electrolyte ions strongly modulates the carrier density or carrier type on the surface of monolayer-MoS2 catalyst during the hydrogen evolution reaction (HER). The buildup of electrolyte ions onto the surface of monolayer MoS2 during 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 MoS2 as 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 MoS2 during 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.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: 2D Materials and Applications · Advanced Memory and Neural Computing · Electrocatalysts for Energy Conversion

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan

Department of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan

Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan

Center of Atomic Initiative for New Materials (AI-MAT), National Taiwan University, Taipei 10617, Taiwan

Department of Physics, National Central University, Taoyuan 32001, Taiwan

Molecular Science and Technology Program, Taiwan International Graduate Program, Institute of Atomic and Molecular Science, Academia Sinica, Taipei 10617, Taiwan

Center for Reliability Science and Technologies, Chang Gung University, Taoyuan 33302, Taiwan

Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan

Sustainable Energy Development Center, National Taiwan University of Science and Technology, Taipei 106335, Taiwan

Taiwan Consortium of Emergent Crystalline Materials (TCECM), Ministry of Science and Technology, Taipei 10622, Taiwan

Institute of Physics and Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan

National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan

Funding

Ministry of Education · Ministry of Science and Technology, Taiwan

References (40)

Show source-provided references
1. 10.1126/science.110319710.1126/science.1103197 ↗
2. 10.1038/nmat175210.1038/nmat1752 ↗
3. 10.1149/1.185698810.1149/1.1856988 ↗
4. 10.1038/nnano.2012.19310.1038/nnano.2012.193 ↗
5. 10.1021/cr300263a10.1021/cr300263a ↗
6. 10.1038/nchem.158910.1038/nchem.1589 ↗
7. 10.1021/ja050469010.1021/ja0504690 ↗
8. 10.1021/nl403661s10.1021/nl403661s ↗
9. 10.1038/nmat446510.1038/nmat4465 ↗
10. 10.1002/adma.20130268510.1002/adma.201302685 ↗
11. 10.1021/ja408329q10.1021/ja408329q ↗
12. 10.1021/acs.jpcc.5b0465810.1021/acs.jpcc.5b04658 ↗
13. 10.1021/jacs.6b0371410.1021/jacs.6b03714 ↗
14. 10.1038/s41563-019-0426-010.1038/s41563-019-0426-0 ↗
15. Franklin, A. D. Electrocatalysis on Non-Metallic Surfaces; U.S. Department of Commerce: Washington, D.C., 1976; pp 1–358.10.6028/NBS.SP.455 ↗
16. 10.1126/science.114148310.1126/science.1141483 ↗
17. 10.1038/nmat350510.1038/nmat3505 ↗
18. 10.1016/0749-6036(89)90382-010.1016/0749-6036(89)90382-0 ↗
19. 10.1103/PhysRevB.44.382110.1103/PhysRevB.44.3821 ↗
20. 10.1088/0953-8984/16/35/00210.1088/0953-8984/16/35/002 ↗
21. 10.1021/nl502197510.1021/nl5021975 ↗
22. 10.1021/acs.jpclett.9b0102210.1021/acs.jpclett.9b01022 ↗
23. 10.1021/nl403036h10.1021/nl403036h ↗
24. 10.1038/ncomms249810.1038/ncomms2498 ↗
25. 10.1002/adma.20170712310.1002/adma.201707123 ↗
26. 10.1021/acs.nanolett.9b0333710.1021/acs.nanolett.9b03337 ↗
27. 10.1021/acsanm.9b0217010.1021/acsanm.9b02170 ↗
28. 10.1021/jp953636z10.1021/jp953636z ↗
29. 10.1021/jp211782v10.1021/jp211782v ↗
30. 10.1039/C9EE00513G10.1039/C9EE00513G ↗
31. 10.1103/PhysRevB.99.19540110.1103/PhysRevB.99.195401 ↗
32. 10.1063/1.499828410.1063/1.4998284 ↗
33. 10.1039/C9NR09326E10.1039/C9NR09326E ↗
34. 10.1063/1.497278110.1063/1.4972781 ↗
35. 10.1021/ja503332710.1021/ja5033327 ↗
36. 10.1021/acs.nanolett.5b0433110.1021/acs.nanolett.5b04331 ↗
37. 10.1209/0295-5075/94/2700610.1209/0295-5075/94/27006 ↗
38. 10.1364/OE.17.01132110.1364/OE.17.011321 ↗
39. 10.1364/OPTICA.3.00008210.1364/OPTICA.3.000082 ↗
40. 10.1021/jacs.9b1112610.1021/jacs.9b11126 ↗