Highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles
We report on a carbon nanotube (CNT) fiber microelectrode coated with palladium nanoparticles (PdNPs) and enabling electrochemical sensing of hydrogen peroxide (H2O2). The synergistic effects of the CNT fibers (good mechanical strength and large surface area) and of the PdNPs (high electrocatalytic...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2016
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| Online Access: | https://hdl.handle.net/10356/81806 http://hdl.handle.net/10220/40966 |
| _version_ | 1824456587504254976 |
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| author | Liu, Yang Sun, Gengzhi Jiang, Chunbo Zheng, Xin Ting Zheng, Lianxi Li, Chang Ming |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Liu, Yang Sun, Gengzhi Jiang, Chunbo Zheng, Xin Ting Zheng, Lianxi Li, Chang Ming |
| author_sort | Liu, Yang |
| collection | NTU |
| description | We report on a carbon nanotube (CNT) fiber microelectrode coated with palladium nanoparticles (PdNPs) and enabling electrochemical sensing of hydrogen peroxide (H2O2). The synergistic effects of the CNT fibers (good mechanical strength and large surface area) and of the PdNPs (high electrocatalytic activity) result in a microelectrode for H2O2 that exhibits a 2-s response time, a detection limit as low as 2 μM, a sensitivity of 2.75 A cm−2 M−1, and a linear response range from 2 μM to 1.3 mM (R = 0.9994). The sensor is also selective and not interfered by potentially competing species in biological fluids, thus representing an inexpensive but highly sensitive and selective microsensor for H2O2. |
| first_indexed | 2025-02-19T03:56:28Z |
| format | Journal Article |
| id | ntu-10356/81806 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:56:28Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/818062020-03-07T11:35:19Z Highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles Liu, Yang Sun, Gengzhi Jiang, Chunbo Zheng, Xin Ting Zheng, Lianxi Li, Chang Ming School of Chemical and Biomedical Engineering School of Mechanical and Aerospace Engineering Hydrogen peroxide Sensing We report on a carbon nanotube (CNT) fiber microelectrode coated with palladium nanoparticles (PdNPs) and enabling electrochemical sensing of hydrogen peroxide (H2O2). The synergistic effects of the CNT fibers (good mechanical strength and large surface area) and of the PdNPs (high electrocatalytic activity) result in a microelectrode for H2O2 that exhibits a 2-s response time, a detection limit as low as 2 μM, a sensitivity of 2.75 A cm−2 M−1, and a linear response range from 2 μM to 1.3 mM (R = 0.9994). The sensor is also selective and not interfered by potentially competing species in biological fluids, thus representing an inexpensive but highly sensitive and selective microsensor for H2O2. ASTAR (Agency for Sci., Tech. and Research, S’pore) 2016-07-19T05:25:08Z 2019-12-06T14:40:49Z 2016-07-19T05:25:08Z 2019-12-06T14:40:49Z 2013 Journal Article Liu, Y., Sun, G., Jiang, C., Zheng, X. T., Zheng, L., & Li, C. M. (2014). Highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles. Microchimica Acta, 181(1), 63-70. 0026-3672 https://hdl.handle.net/10356/81806 http://hdl.handle.net/10220/40966 10.1007/s00604-013-1066-8 en Microchimica Acta © 2013 Springer-Verlag Wien. |
| spellingShingle | Hydrogen peroxide Sensing Liu, Yang Sun, Gengzhi Jiang, Chunbo Zheng, Xin Ting Zheng, Lianxi Li, Chang Ming Highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles |
| title | Highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles |
| title_full | Highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles |
| title_fullStr | Highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles |
| title_full_unstemmed | Highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles |
| title_short | Highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles |
| title_sort | highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles |
| topic | Hydrogen peroxide Sensing |
| url | https://hdl.handle.net/10356/81806 http://hdl.handle.net/10220/40966 |
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