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...

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Main Authors: Xia, Hang, Sang, Xiaoru, Shu, Zhiwen, Shi, Zude, Li, Zefen, Guo, Shasha, An, Xiuyun, Gao, Caitian, Liu, Fucai, Duan, Huigao, Liu, Zheng, He, Yongmin
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/173008
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.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
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials
Electrochemical Analysis
Electron Transport
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
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.
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
format Article
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
author_sort Xia, Hang
title 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_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_sort practice of reaction window in an electrocatalytic on-chip microcell
publishDate 2024
url https://hdl.handle.net/10356/173008
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