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...

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Main Authors: Liu, Yang, Sun, Gengzhi, Jiang, Chunbo, Zheng, Xin Ting, Zheng, Lianxi, Li, Chang Ming
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2016
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Online Access:https://hdl.handle.net/10356/81806
http://hdl.handle.net/10220/40966
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.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.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Hydrogen peroxide
Sensing
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
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.
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
format Article
author Liu, Yang
Sun, Gengzhi
Jiang, Chunbo
Zheng, Xin Ting
Zheng, Lianxi
Li, Chang Ming
author_sort Liu, Yang
title 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_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_sort highly sensitive detection of hydrogen peroxide at a carbon nanotube fiber microelectrode coated with palladium nanoparticles
publishDate 2016
url https://hdl.handle.net/10356/81806
http://hdl.handle.net/10220/40966
_version_ 1681049593569083392