Electrodeposition of Cobalt Oxide Nanostructure on the Glassy Carbon Electrode for Electrocatalytic Determination of <i>para</i>‐Nitrophenol

Noorbakhsh, Abdollah; Mirkalaei, Mohsen Mosavi; Yousefi, Mohammad; Manochehri, Sohrab

doi:10.1002/elan.201400386

Cited by 32 publications

(17 citation statements)

References 67 publications

(75 reference statements)

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“…A variety of nanomaterials such as a-MnO 2 nanotubes [16], codoped Mn 2 O 3 -ZnO nanoparticles nanoporous gold films [17], CoO x nanostructures [18], Co 3 O 4 nanostructures [19], ZnO microstructures [20], copper oxide nanoparticles [21], nano gold [22], copper nanoparticles [23], multi-walled carbon nanotubes [24], single walled carbon nanotubes [25], SWCNT/pyrenecycodextrin nanohybrids [26], chitosan/phenyltrimethoxysilane/AuNPs hybrid films [27], fullerene-b-cyclodextrin cojugates [28], hybrid inor-ganic-organic coating based on prussian blue and polyazulene derivatives [29] have been employed to modify glassy carbon or metal electrodes for the electrochemical detection of p-NP.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Para‐nitrophenol using Copper Metal Nanoparticles Modified Gold Electrode

2017

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para‐Nitrophenol (p‐NP) is a high priority environmental pollutant. For the sake of safety, sensitive detection of its presence in water resources and food is highly important. The present article describes the use of copper metal nanoparticles for selective and sensitive electrochemical detection of p‐NP in pure and real sample. For this the gold electrode was fabricated by polyvenylpyrrolidone stabilized copper metal nanoparticles (ca. 4 nm d.) via self‐assembled 4,4′‐bipyridine monolayer and characterized by microscopic and electrochemical techniques. The newly developed sensor permits for sensitive detection of p‐NP in a linear concentration range of 1–500 μM with lowest detection limit of 0.34 nM and high sensitivities 247.1 μA cm−2 μM−1. The sensor electrode exhibited high stability, reproducibility, good selectivity in the presence of potential interfering agents and had an excellent capability for the selective determination of p‐NP in river water without preliminary treatments.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Para‐nitrophenol using Copper Metal Nanoparticles Modified Gold Electrode

2017

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“…Recently, we have reported the application of various nanomaterials for the fabrication of sensors and biosensors 19, 20, 47–49. The present study describes the reagentless detection method for PSA monitoring, in which there is no need to add any redox species to the electrolyte solution.…”

Section: Introductionmentioning

confidence: 98%

Nanosheet‐Stacked Chiral Silica Transcribed from Metal Ion‐ and pH‐Tuned Supramolecular Crystalline Complexes of Polyamine‐D‐Glucarate

Matsukizono

Murada

Jin

2013

Chemistry A European J

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D-glucaric acid (D-Glc) associates with linear poly(ethyleneimine) (PEI) through hydrogen bonding and electrostatic interactions in aqueous media to form nanostructured crystalline PEI/D-Glc/H2O complexes with PEI/D-Glc/H2O ratios of 2:1:2. These complexes can serve as templates for silica depositions from hydrolytic condensation of tetramethoxysilane to guide morphologically duplicated silica under very mild conditions. Their microscale morphologies are tunable by use of the crystalline complexes regulated in the different pH of the PEI/D-Glc solutions. It was also found that some metal ions added in the PEI/D-Glc complexation process could have a synergistic effect under a certain pH regimes, bringing about remarkable changes in the hierarchy of the resulting complexes. Especially, the complexes formed through fine-tuning of the complexation conditions could direct torsionally stacked silica nanosheets, in which the nanosheets are composed of orderly-bundled nanofibrils. Final elimination of organic components of the templates afforded chiral inorganic silica while retaining the morphologically higher-order structures. The chirality of the silica, which was obtained after calcination at 600 °C, was characterized by means of diffused reflectance circular dichroism (DRCD) spectroscopy with a remote confirmation of the appearance of induced-CD (ICD) signals of achiral or racemic chromophores covalently linked on the silica frames. Interestingly, the shapes and signs of these ICD signals are dramatically changed depending on the pH-tuned templates used in silicification and are strongly correlated to that of the CD signals of the complex templates, indicating that the chiral transcription proceeds accurately with imprinting the higher-order chirality of the complexes on the morphologically structured silica networks.

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“…Owing to their wide bandgap (3.37 eV) and varying morphological features, the ZnO nanostructures and other metal oxides have gained much attention in the field of fabrication of light‐emitting diodes (LEDs), piezoelectric devices and optoelectronic devices with remarkable optical, electronic, catalytic and sensing properties . So far the synthesis of ZnO involve hydro/solvo thermal, electrochemical, physical/chemical vapor deposition, pulsed laser deposition, sputtering, microwave‐assisted and template based approaches .…”

Section: Introductionmentioning

confidence: 99%

Binder Free Modification of Glassy Carbon Electrode by Employing Reduced Graphene Oxide/ZnO Composite for Voltammetric Determination of Certain Nitroaromatics

Mohammad¹,

Ahmad²,

Rajak³

et al. 2017

Electroanalysis

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Reduced Graphene oxide/ZnO nanoflowers (rGO/ZnO‐NFs) composite has been synthesized in‐situ using asymmetric Zn complex (1) as a single‐source molecular precursor (SSMP) with GO at 150 °C. The rGO/ZnO‐NFs composite was characterized by PXRD, UV‐vis, SEM, EDX mapping, TEM and SAED pattern to confirm its purity and morphology. The rGO/ZnO‐NFs composite shows uniform distribution of nanoflowers on graphene sheets. The modified glassy carbon electrode (GCE) was fabricated by drop wise layering of the rGO/ZnO‐NFs composite at the surface of the GCE without using binder. The binder free modified electrode (GCE‐rGO/ZnO) was explored for detection of nitroaromatics such as p‐nitro‐phenol (p‐NP), 2,4‐dinitrophenol (2,4‐DNP), 2,4‐dinitrotoluene (2,4‐DNT) and 2,4,6‐trinitrophenol (2,4,6‐TNP). The fabricated sensor showed remarkable response for the both toxicants and explosives. The LOD, sensitivity and linear range for the studied toxicants and explosives were found to be in a good range: p‐NP=0.93 μM, 240 μA mM−1 cm−2 and 0.2–0.9 mM; 2,4‐DNP=6.2 μM, 203 μA mM−1 cm−2 and 0.1–0.9 mM; 2,4‐DNT=10 μM, 371 μA mM−1 cm−2 and 0.2–0.9 mM; 2,4,6‐TNP=16 μM, 514 μA mM−1 cm−2 and 0.2–0.9 mM, respectively.

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Electrodeposition of Cobalt Oxide Nanostructure on the Glassy Carbon Electrode for Electrocatalytic Determination of para‐Nitrophenol

Cited by 32 publications

References 67 publications

Electrochemical Detection of Para‐nitrophenol using Copper Metal Nanoparticles Modified Gold Electrode

Electrochemical Detection of Para‐nitrophenol using Copper Metal Nanoparticles Modified Gold Electrode

Nanosheet‐Stacked Chiral Silica Transcribed from Metal Ion‐ and pH‐Tuned Supramolecular Crystalline Complexes of Polyamine‐D‐Glucarate

Binder Free Modification of Glassy Carbon Electrode by Employing Reduced Graphene Oxide/ZnO Composite for Voltammetric Determination of Certain Nitroaromatics

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