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In-situ growth of Co3O4 nanoparticles on mesoporous carbon nanofibers: a new nanocomposite for nonenzymatic amperometric sensing of H2O2

The paper describes a nonenzymatic amperometric H 2 O 2 sensor that uses a nanocomposite consisting of Co 3 O 4 nanoparticles (NPs) and mesoporous carbon nanofibers (Co 3 O 4 -MCNFs). The Co 3 O 4 NPs were grown in situ on the MCNFs by a solvothermal procedure. The synergetic combination of the elec... Full description

Journal Title: Mikrochimica acta (1966) 2017, Vol.184 (10), p.3689-3695
Main Author: Ni, Yue
Other Authors: Liao, Yuan , Zheng, Mingbo , Shao, Shijun
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Vienna: Springer Vienna
ID: ISSN: 0026-3672
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title: In-situ growth of Co3O4 nanoparticles on mesoporous carbon nanofibers: a new nanocomposite for nonenzymatic amperometric sensing of H2O2
format: Article
creator:
  • Ni, Yue
  • Liao, Yuan
  • Zheng, Mingbo
  • Shao, Shijun
subjects:
  • Analytical Chemistry
  • Characterization and Evaluation of Materials
  • Chemistry
  • Chemistry and Materials Science
  • Microengineering
  • Nanochemistry
  • Nanotechnology
  • Original Paper
ispartof: Mikrochimica acta (1966), 2017, Vol.184 (10), p.3689-3695
description: The paper describes a nonenzymatic amperometric H 2 O 2 sensor that uses a nanocomposite consisting of Co 3 O 4 nanoparticles (NPs) and mesoporous carbon nanofibers (Co 3 O 4 -MCNFs). The Co 3 O 4 NPs were grown in situ on the MCNFs by a solvothermal procedure. The synergetic combination of the electrocatalytic activity of the Co 3 O 4 NPs and the electrical conductivity of MCNFs as an immobilization matrix enhance the sensing ability of the hybrid nanostructure. The oxidation current, best measured at 0.2 V (vs. SCE) is linear in the 1 to 2580 μM H 2 O 2 concentration range, with a 0.5 μM lower detection limit (at an S/N ratio of 3). The sensor is highly selective even in the presence of common electroactive interferents. It was applied to the determination of H 2 O 2 in spiked milk samples. Graphical abstract Schematic of the synthesis of a nanocomposite consisting of Co 3 O 4 nanoparticles (NPs) and mesoporous carbon nanofibers (Co 3 O 4 -MCNFs) by a solvothermal procedure. It was used as electrocatalyst for direct oxidation of H 2 O 2 .
language: eng
source:
identifier: ISSN: 0026-3672
fulltext: no_fulltext
issn:
  • 0026-3672
  • 1436-5073
url: Link


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titleIn-situ growth of Co3O4 nanoparticles on mesoporous carbon nanofibers: a new nanocomposite for nonenzymatic amperometric sensing of H2O2
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descriptionThe paper describes a nonenzymatic amperometric H 2 O 2 sensor that uses a nanocomposite consisting of Co 3 O 4 nanoparticles (NPs) and mesoporous carbon nanofibers (Co 3 O 4 -MCNFs). The Co 3 O 4 NPs were grown in situ on the MCNFs by a solvothermal procedure. The synergetic combination of the electrocatalytic activity of the Co 3 O 4 NPs and the electrical conductivity of MCNFs as an immobilization matrix enhance the sensing ability of the hybrid nanostructure. The oxidation current, best measured at 0.2 V (vs. SCE) is linear in the 1 to 2580 μM H 2 O 2 concentration range, with a 0.5 μM lower detection limit (at an S/N ratio of 3). The sensor is highly selective even in the presence of common electroactive interferents. It was applied to the determination of H 2 O 2 in spiked milk samples. Graphical abstract Schematic of the synthesis of a nanocomposite consisting of Co 3 O 4 nanoparticles (NPs) and mesoporous carbon nanofibers (Co 3 O 4 -MCNFs) by a solvothermal procedure. It was used as electrocatalyst for direct oxidation of H 2 O 2 .
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subjectAnalytical Chemistry ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Microengineering ; Nanochemistry ; Nanotechnology ; Original Paper
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titleIn-situ growth of Co3O4 nanoparticles on mesoporous carbon nanofibers: a new nanocomposite for nonenzymatic amperometric sensing of H2O2
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abstractThe paper describes a nonenzymatic amperometric H 2 O 2 sensor that uses a nanocomposite consisting of Co 3 O 4 nanoparticles (NPs) and mesoporous carbon nanofibers (Co 3 O 4 -MCNFs). The Co 3 O 4 NPs were grown in situ on the MCNFs by a solvothermal procedure. The synergetic combination of the electrocatalytic activity of the Co 3 O 4 NPs and the electrical conductivity of MCNFs as an immobilization matrix enhance the sensing ability of the hybrid nanostructure. The oxidation current, best measured at 0.2 V (vs. SCE) is linear in the 1 to 2580 μM H 2 O 2 concentration range, with a 0.5 μM lower detection limit (at an S/N ratio of 3). The sensor is highly selective even in the presence of common electroactive interferents. It was applied to the determination of H 2 O 2 in spiked milk samples. Graphical abstract Schematic of the synthesis of a nanocomposite consisting of Co 3 O 4 nanoparticles (NPs) and mesoporous carbon nanofibers (Co 3 O 4 -MCNFs) by a solvothermal procedure. It was used as electrocatalyst for direct oxidation of H 2 O 2 .
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doi10.1007/s00604-017-2395-9