The practice of reaction window in an electrocatalytic on-chip microcell
To enhance the efficiency of catalysis, it is crucial to comprehend the behavior of individual nanowires/nanosheets. A developed on-chip microcell facilitates this study by creating a reaction window that exposes the catalyst region of interest. However, this technology's potential application...
| Main Authors: | , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/173008 |
| _version_ | 1826127406454276096 |
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| author | Xia, Hang Sang, Xiaoru Shu, Zhiwen Shi, Zude Li, Zefen Guo, Shasha An, Xiuyun Gao, Caitian Liu, Fucai Duan, Huigao Liu, Zheng He, Yongmin |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Xia, Hang Sang, Xiaoru Shu, Zhiwen Shi, Zude Li, Zefen Guo, Shasha An, Xiuyun Gao, Caitian Liu, Fucai Duan, Huigao Liu, Zheng He, Yongmin |
| author_sort | Xia, Hang |
| collection | NTU |
| description | To enhance the efficiency of catalysis, it is crucial to comprehend the behavior of individual nanowires/nanosheets. A developed on-chip microcell facilitates this study by creating a reaction window that exposes the catalyst region of interest. However, this technology's potential application is limited due to frequently-observed variations in data between different cells. In this study, we identify a conductance problem in the reaction windows of non-metallic catalysts as the cause of this issue. We investigate this problem using in-situ electronic/electrochemical measurements and atom-thin nanosheets as model catalysts. Our findings show that a full-open window, which exposes the entire catalyst channel, allows for efficient modulation of conductance, which is ten times higher than a half-open window. This often-overlooked factor has the potential to significantly improve the conductivity of non-metallic catalysts during the reaction process. After examining tens of cells, we develop a vertical microcell strategy to eliminate the conductance issue and enhance measurement reproducibility. Our study offers guidelines for conducting reliable microcell measurements on non-metallic single nanowire/nanosheet catalysts. |
| first_indexed | 2024-10-01T07:08:20Z |
| format | Journal Article |
| id | ntu-10356/173008 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:08:20Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1730082024-01-12T15:47:24Z The practice of reaction window in an electrocatalytic on-chip microcell Xia, Hang Sang, Xiaoru Shu, Zhiwen Shi, Zude Li, Zefen Guo, Shasha An, Xiuyun Gao, Caitian Liu, Fucai Duan, Huigao Liu, Zheng He, Yongmin School of Materials Science and Engineering Engineering::Materials Electrochemical Analysis Electron Transport To enhance the efficiency of catalysis, it is crucial to comprehend the behavior of individual nanowires/nanosheets. A developed on-chip microcell facilitates this study by creating a reaction window that exposes the catalyst region of interest. However, this technology's potential application is limited due to frequently-observed variations in data between different cells. In this study, we identify a conductance problem in the reaction windows of non-metallic catalysts as the cause of this issue. We investigate this problem using in-situ electronic/electrochemical measurements and atom-thin nanosheets as model catalysts. Our findings show that a full-open window, which exposes the entire catalyst channel, allows for efficient modulation of conductance, which is ten times higher than a half-open window. This often-overlooked factor has the potential to significantly improve the conductivity of non-metallic catalysts during the reaction process. After examining tens of cells, we develop a vertical microcell strategy to eliminate the conductance issue and enhance measurement reproducibility. Our study offers guidelines for conducting reliable microcell measurements on non-metallic single nanowire/nanosheet catalysts. Published version Y.H. acknowledges the National Key R&D Program of China (2021YFA1500900), the Fundamental Research Funds for Central Universities (531119200209), the National Natural Science Foundation of China (52203354 and 22272048), and the Guangdong Basic and Applied Basic Research Foundation (2023A1515012648). C.G. acknowledges the Guangdong Basic and Applied Basic Research Foundation (2023A1515012176). 2024-01-09T00:47:05Z 2024-01-09T00:47:05Z 2023 Journal Article Xia, H., Sang, X., Shu, Z., Shi, Z., Li, Z., Guo, S., An, X., Gao, C., Liu, F., Duan, H., Liu, Z. & He, Y. (2023). The practice of reaction window in an electrocatalytic on-chip microcell. Nature Communications, 14(1), 6838-. https://dx.doi.org/10.1038/s41467-023-42645-0 2041-1723 https://hdl.handle.net/10356/173008 10.1038/s41467-023-42645-0 37891203 2-s2.0-85174852369 1 14 6838 en Nature communications © 2023 The Author(s). Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/ licenses/by/4.0/. application/pdf |
| spellingShingle | Engineering::Materials Electrochemical Analysis Electron Transport Xia, Hang Sang, Xiaoru Shu, Zhiwen Shi, Zude Li, Zefen Guo, Shasha An, Xiuyun Gao, Caitian Liu, Fucai Duan, Huigao Liu, Zheng He, Yongmin The practice of reaction window in an electrocatalytic on-chip microcell |
| title | The practice of reaction window in an electrocatalytic on-chip microcell |
| title_full | The practice of reaction window in an electrocatalytic on-chip microcell |
| title_fullStr | The practice of reaction window in an electrocatalytic on-chip microcell |
| title_full_unstemmed | The practice of reaction window in an electrocatalytic on-chip microcell |
| title_short | The practice of reaction window in an electrocatalytic on-chip microcell |
| title_sort | practice of reaction window in an electrocatalytic on chip microcell |
| topic | Engineering::Materials Electrochemical Analysis Electron Transport |
| url | https://hdl.handle.net/10356/173008 |
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