Cobalt oxide nanoparticles anchored to multiwalled carbon nanotubes: Synthesis and application for enhanced electrocatalytic reaction and highly sensitive nonenzymatic detection of hydrogen peroxide

Heli, H.; Pishahang, J.

doi:10.1016/j.electacta.2014.01.032

Cited by 108 publications

(44 citation statements)

References 74 publications

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“…We can see that the sensitivity, detection limit, linear range, and response time of our sensor are comparable and even better than those obtained by other modified electrodes [23,[27][28][29][30][31][32][53][54][55][56][57][58][59]. Salimi et al [23] …”

Section: Electrochemical Behavior Of the Co 3 O 4 Modified Gcementioning

confidence: 53%

“…Therefore, a large number of efforts have been focused on the controlled synthesis of nanostructured Co 3 O 4 such as Co 3 O 4 nanorods, nanowires and nanotubes [34][35][36]. Ensafi et al [29] and Heli et al [30] both prepared Co 3 O 4 -carbon noncomposites to increase the electrical conductivity. Although they have increased electrocatalytic activity for H 2 O 2 , high cost of graphene and carbon nanotube limited their practicability in large-scale production.…”

Section: Introductionmentioning

confidence: 99%

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Highly sensitive H2O2 sensor based on Co3O4 hollow sphere prepared via a template-free method

Wang

Jiang

Liu

et al. 2015

Electrochimica Acta

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Section: Electrochemical Behavior Of the Co 3 O 4 Modified Gcementioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Highly sensitive H2O2 sensor based on Co3O4 hollow sphere prepared via a template-free method

Wang

Jiang

Liu

et al. 2015

Electrochimica Acta

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“…The results were compared to those obtained with a bare GCE. Hydrogen peroxide can be electrochemically determined by reduction [25][26][27][28][29] or oxidation [30][31][32][33][34]. In this study, the best results (see discussion below) were obtained by oxidation at an applied potential (E app ) of +1.5 V.…”

Section: B Optimization Of Experimental Conditions For H 2 O 2 Detecmentioning

confidence: 98%

Nonenzymatic Amperometric Sensors for Hydrogen Peroxide Based on Melanin-Capped Fe³⁺-, Cu²⁺-, or Ni²⁺-Modified Prussian Blue Nanoparticles

et al. 2015

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Three novel non-enzymatic sensors based on the modification of a glassy carbon electrode with nanoparticles of Fe 3+ , Cu 2+ or Ni 2+ Prussian blue derivatives (PB) are proposed herein. The Fe 3+ -, Cu 2+ -and Ni 2+ -modified Prussian blue nanoparticles were supported in an environmentally-friendly chemical product known as melanin. The nanomaterials prepared were characterized by transmission electron microscopy (TEM) images, electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The drop casting method was used to build the enzymeless sensors, which were able to catalyze the oxidation of hydrogen peroxide at +1.5 V. The calibration curves obtained by amperometry were linear in the range of 0.1 to 13.0 mmol L -1 . Several figures of merit were obtained in order to characterize the analytical electrochemical behavior of the as-prepared sensors. For instance, the detection limits achieved were 0.14, 0.32 and 0.57 µmol L -1 for the melanincapped modified Prussian blue nanoparticle sensor containing respectively Fe 3+ , Cu 2+ and Ni 2+ ions. These values are lower than the detection limits provided by other non-enzymatic sensors. The sensors were applied for the detection of hydrogen peroxide in tooth whitening gel. The results obtained were compared with those of the standard method.Index Terms-Non-enzimatic amperometric sensors, Prussian blue derivatives, nanoparticles, hydrogen peroxide, tooth whitening gel.

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“…The slope of the resulting straight line was then plotted against hydrogen peroxide concentration, from the slope and using the Cottrell equation, the value of diffusion coefficient was found to be 2.03 9 10 -5 cm 2 s -1 . In comparison, the high diffusion coefficient prepared here is higher than 1.9 9 10 -5 cm 2 s -1 for Co 3 O 4 /MWCNT (CPE) [31] and 1.7 9 10 -6 cm 2 s -1 for Hb/PLE [29].…”

Section: Hydrogen Peroxide Electro-oxidation At the Nio/ Ni Foam Elecmentioning

confidence: 98%

Preparation of mesoporous silica templated metal nanostructure on Ni foam substrate and its application for the determination of hydrogen peroxide

Kamyabi

Hajari

2016

J Appl Electrochem

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Nickel oxide nanostructure network electrodes have been fabricated via metal electrodeposition into a silica template on Ni foam as a three-dimensional metal electrode. The metal oxide nanostructure on three-dimensional electrodes provides a pathway to a very high surface area of electrode built on a cheap commercially available material. These electrodes were characterized by electrochemical impedance spectroscopy, field emission scanning electron microscopy, energy-dispersive X-ray analysis and X-ray diffraction pattern. The electrochemical properties of the electrodes, such as the electrochemical active area and some kinetic parameters, were investigated. The prepared electrode was applied as an amperometric sensor for hydrogen peroxide determination in low potential. The presented electrode shows good sensitivity and stability. Finally, the proposed electrochemical sensor was successfully applied to determine H 2 O 2 in milk and the method has been validated using independent estimation by the classical potassium permanganate titration method.Electronic supplementary material The online version of this article (

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Cobalt oxide nanoparticles anchored to multiwalled carbon nanotubes: Synthesis and application for enhanced electrocatalytic reaction and highly sensitive nonenzymatic detection of hydrogen peroxide

Cited by 108 publications

References 74 publications

Highly sensitive H2O2 sensor based on Co3O4 hollow sphere prepared via a template-free method

Highly sensitive H2O2 sensor based on Co3O4 hollow sphere prepared via a template-free method

Nonenzymatic Amperometric Sensors for Hydrogen Peroxide Based on Melanin-Capped Fe³⁺-, Cu²⁺-, or Ni²⁺-Modified Prussian Blue Nanoparticles

Preparation of mesoporous silica templated metal nanostructure on Ni foam substrate and its application for the determination of hydrogen peroxide

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Cobalt oxide nanoparticles anchored to multiwalled carbon nanotubes: Synthesis and application for enhanced electrocatalytic reaction and highly sensitive nonenzymatic detection of hydrogen peroxide

Cited by 108 publications

References 74 publications

Highly sensitive H2O2 sensor based on Co3O4 hollow sphere prepared via a template-free method

Highly sensitive H2O2 sensor based on Co3O4 hollow sphere prepared via a template-free method

Nonenzymatic Amperometric Sensors for Hydrogen Peroxide Based on Melanin-Capped Fe3+-, Cu2+-, or Ni2+-Modified Prussian Blue Nanoparticles

Preparation of mesoporous silica templated metal nanostructure on Ni foam substrate and its application for the determination of hydrogen peroxide

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Nonenzymatic Amperometric Sensors for Hydrogen Peroxide Based on Melanin-Capped Fe³⁺-, Cu²⁺-, or Ni²⁺-Modified Prussian Blue Nanoparticles