Plasma functionalized MoSe2 for efficient nonenzymatic sensing of hydrogen peroxide in ultra‐wide pH range
Abstract Enzymatic sensors have inherent problems such as the low stability and limited pH range in industrial and biomedical applications and therefore, more efficient nonenzymatic sensors are highly desirable. Herein, plasma‐functionalized defective MoSe2 is prepared and studied as a highly effici...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-09-01
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| Series: | SmartMat |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/smm2.1089 |
| _version_ | 1817999574676013056 |
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| author | Yang Luo Donghai Wu Zehui Li Xiao‐Yan Li Yinghong Wu Shien‐Ping Feng Carlo Menon Houyang Chen Paul K. Chu |
| author_facet | Yang Luo Donghai Wu Zehui Li Xiao‐Yan Li Yinghong Wu Shien‐Ping Feng Carlo Menon Houyang Chen Paul K. Chu |
| author_sort | Yang Luo |
| collection | DOAJ |
| description | Abstract Enzymatic sensors have inherent problems such as the low stability and limited pH range in industrial and biomedical applications and therefore, more efficient nonenzymatic sensors are highly desirable. Herein, plasma‐functionalized defective MoSe2 is prepared and studied as a highly efficient catalyst for electrochemical sensing of H2O2. Experiments and theoretical computations show that the plasma‐induced Se multi‐vacancies and nitrogen dopants generate new active sites, expose more edge active surfaces, narrow the bandgap, and strengthen binding with the ·OH intermediate, which imparts new fundamental knowledge about the roles of defects in catalysis. The defective MoSe2‐catalyzed sensor delivers competitive performance in hydrogen peroxide detection such as a low detection limit of 12.6 nmol/L, wide operational pH range of 1−13, good long‐term stability, and high selectivity. The portable sensor produced by screen printing confirms the excellent commercial potential and in addition, the results not only reveal a novel concept to design and fabricate high‐performance sensors for H2O2 but also provide insights into the effectiveness of surface modification of diverse catalytic materials. |
| first_indexed | 2024-04-14T03:10:45Z |
| format | Article |
| id | doaj.art-ae05f21fdb2948a3a795707884412478 |
| institution | Directory Open Access Journal |
| issn | 2688-819X |
| language | English |
| last_indexed | 2024-04-14T03:10:45Z |
| publishDate | 2022-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | SmartMat |
| spelling | doaj.art-ae05f21fdb2948a3a7957078844124782022-12-22T02:15:37ZengWileySmartMat2688-819X2022-09-013349150210.1002/smm2.1089Plasma functionalized MoSe2 for efficient nonenzymatic sensing of hydrogen peroxide in ultra‐wide pH rangeYang Luo0Donghai Wu1Zehui Li2Xiao‐Yan Li3Yinghong Wu4Shien‐Ping Feng5Carlo Menon6Houyang Chen7Paul K. Chu8Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering City University of Hong Kong Hong Kong ChinaHenan Key Laboratory of Nanocomposites and Applications, Institute of Nanostructured Functional Materials Huanghe S & T University Zhengzhou ChinaState Key Laboratory for Mesoscopic Physics, Collaborative Innovation Center of Quantum Matter, School of Physics Peking University Beijing ChinaCentre for Water Technology and Policy, Department of Civil Engineering The University of Hong Kong Hong Kong ChinaBiomedical and Mobile Health Technology Lab, Department of Health Sciences and Technology ETH Zürich Zürich SwitzerlandDepartment of Mechanical Engineering The University of Hong Kong Hong Kong ChinaBiomedical and Mobile Health Technology Lab, Department of Health Sciences and Technology ETH Zürich Zürich SwitzerlandDepartment of Chemical and Biological Engineering State University of New York at Buffalo New York USADepartment of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering City University of Hong Kong Hong Kong ChinaAbstract Enzymatic sensors have inherent problems such as the low stability and limited pH range in industrial and biomedical applications and therefore, more efficient nonenzymatic sensors are highly desirable. Herein, plasma‐functionalized defective MoSe2 is prepared and studied as a highly efficient catalyst for electrochemical sensing of H2O2. Experiments and theoretical computations show that the plasma‐induced Se multi‐vacancies and nitrogen dopants generate new active sites, expose more edge active surfaces, narrow the bandgap, and strengthen binding with the ·OH intermediate, which imparts new fundamental knowledge about the roles of defects in catalysis. The defective MoSe2‐catalyzed sensor delivers competitive performance in hydrogen peroxide detection such as a low detection limit of 12.6 nmol/L, wide operational pH range of 1−13, good long‐term stability, and high selectivity. The portable sensor produced by screen printing confirms the excellent commercial potential and in addition, the results not only reveal a novel concept to design and fabricate high‐performance sensors for H2O2 but also provide insights into the effectiveness of surface modification of diverse catalytic materials.https://doi.org/10.1002/smm2.1089MoSe2plasma functionalizationelectrochemical sensorshydrogen peroxidesportable devices |
| spellingShingle | Yang Luo Donghai Wu Zehui Li Xiao‐Yan Li Yinghong Wu Shien‐Ping Feng Carlo Menon Houyang Chen Paul K. Chu Plasma functionalized MoSe2 for efficient nonenzymatic sensing of hydrogen peroxide in ultra‐wide pH range SmartMat MoSe2 plasma functionalization electrochemical sensors hydrogen peroxides portable devices |
| title | Plasma functionalized MoSe2 for efficient nonenzymatic sensing of hydrogen peroxide in ultra‐wide pH range |
| title_full | Plasma functionalized MoSe2 for efficient nonenzymatic sensing of hydrogen peroxide in ultra‐wide pH range |
| title_fullStr | Plasma functionalized MoSe2 for efficient nonenzymatic sensing of hydrogen peroxide in ultra‐wide pH range |
| title_full_unstemmed | Plasma functionalized MoSe2 for efficient nonenzymatic sensing of hydrogen peroxide in ultra‐wide pH range |
| title_short | Plasma functionalized MoSe2 for efficient nonenzymatic sensing of hydrogen peroxide in ultra‐wide pH range |
| title_sort | plasma functionalized mose2 for efficient nonenzymatic sensing of hydrogen peroxide in ultra wide ph range |
| topic | MoSe2 plasma functionalization electrochemical sensors hydrogen peroxides portable devices |
| url | https://doi.org/10.1002/smm2.1089 |
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