Preparation of spinel nickel-cobalt oxide nanowrinkles/reduced graphene oxide hybrid for nonenzymatic glucose detection at physiological level

A simple electrochemical method is reported for the preparation of Ni2FeS4 (NFS) nanosheets on carbon sheet (CS)substrate. FESEM and EDAX data confirmed the presence of nanosheet morphology with required stoichiometry. NFS modified CS is employed as an electrode material for the development of non‐enzymatic glucose sensor. Impedance data showed low charge transfer resistance for NFS/CS compared to bare CS, indicated its high charge transfer capability. The developed sensor exhibited wide linear response in two different glucose concentration ranges of 10 to 1850 μM and 2350 to 7750 μM with the sensitivity value of 0.71 μA μM−1 cm−2 and 0.14 μA μM−1 cm−2. Moreover, the selectivity data demonstrated good anti‐interference property of NFS/CS towards glucose in the presence of possible interfering species viz. ascorbic acid, dopamine and uric acid.

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“…In the presence of glucose, these ionic species rapidly oxidize the glucose molecule into gluconolactone which can be expressed as Eqns. 2 and

true Ni^{4 +} + glucose \to Ni^{3 +} + gluconolactone

true Fe^{3 +} + glucose \to Fe^{2 +} + gluconolactone

…”

Section: Figurementioning

confidence: 99%

A Facile Electrochemical Preparation of Violarite (Ni₂FeS₄) Nanosheets on Carbon Sheet and its Application towards Non-Enzymatic Glucose Sensing

Kannan

Dinesh

et al. 2017

ChemistrySelect

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“…Recently, bimetallic oxides, such as spinel NiCo 2 O 4 [17−25], outperformed the NiO or Co 3 O 4 based electrocatalysts due to their enhanced conductivity [26]. In addition, rational design of the material structure can also boost the catalytic performance of NiCo 2 O 4 , such as nanosheets [19,5,23], hollow spheres [25,26], and nanocages [17]. The high surface atom ratios lead to larger active surface areas and stronger current signals.…”

Section: Introductionmentioning

confidence: 99%

“Dry” NiCo2O4 nanorods for electrochemical non-enzymatic glucose sensing

Sun

Zhang

Ren

et al. 2018

Chinese Journal of Chemical Physics

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A rod-like NiCo 2 O 4 modified glassy carbon electrode was fabricated and used for nonenzymatic glucose sensing. The NiCo 2 O 4 was prepared by a facile hydrothermal reaction and subsequently treated in a commercial microwave oven to eliminate the residual water introduced during the hydrothermal procedure. Structural analysis showed that there was no significant structural alteration before and after microwave treatment. The elimination of water residuals was confirmed by the stoichiometric ratio change by using element analysis. The microwave treated NiCo 2 O 4 (M-NiCo 2 O 4) showed excellent performance as a glucose sensor (sensitivity 431.29 µA•mmol/L −1 •cm −2). The sensing performance decreases dramatically by soaking the M-NiCo 2 O 4 in water. This result indicates that the introduction of residual water during hydrothermal process strongly affects the electrochemical performance and microwave pre-treatment is crucial for better sensory performance.

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“…Binary Ni−Co hydroxide showed a linear calibration curve of 25 μmol L −1 to 3.7 mmol L −1 toward the electrochemical detection of glucose . Nickel‐cobalt oxide nanowrinkles with spinel‐type crystal structure supported on reduced graphene oxide (NiCo 2 O 4 NWs‐rGO) was used for the electrochemical detection of glucose with a linear range of 5 μmol L −1 to 8.6 mmol L −1 and detection limit of 2 μmol L −1 . Nickel‐cobalt‐sulfide nanosheet (Ni−Co−S NS)/polypyrrole nanowire (PPy NW) core/shell‐structured composites on nickel foam (NF) exhibited a linear range of 2 μmol L −1 to 2 mmol L −1 and detection limit of 0.82 μmol L −1 .…”

Section: Introductionmentioning

confidence: 99%

MWCNTs/Ionic Liquid/Graphene Quantum Dots Nanocomposite Coated with Nickel‐Cobalt Bimetallic Catalyst as a Highly Selective Non‐enzymatic Sensor for Determination of Glucose

2018

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In this work, a glassy carbon electrode (GCE) was modified with multiwall carbon nanotubes/ionic liquid/graphene quantum dots (MWCNTs/IL/GQDs) nanocomposite. Then, the nanocomposite was decorated with nickel‐cobalt nanoparticles (Ni−Co NPs), and it was used as a non‐enzymatic glucose sensor. Field emission scanning electron microscopy, X‐ray diffraction spectroscopy, and energy dispersive spectroscopy were employed to prove the electrodeposition of the Ni−Co NPs on the surface of MWCNTs/IL/GQDs/GCE. Also, cyclic voltammetric and amperometric methods were utilized for the investigation of the electrochemical behaviour of the Ni−Co NPs/MWCNTs/IL/GQDs/GCE for glucose oxidation. The novel amperometric sensor displayed two linear ranges from 1.0 to 190.0 μmol L−1 and 190.0 to 4910 μmol L−1 with a low detection limit of 0.3 μmol L−1 as well as fast response time (2 s) and high stability. Also, the sensor showed good selectivity for glucose determination in the presence of ascorbic acid, citric acid, dopamine, uric acid, fructose, and sucrose, as potential interference species. Finally, the performance of the proposed sensor was investigated for the glucose determination in real samples. Ni−Co NPs/MWCNTs/IL/GQDs/GCE showed good sensitivity and excellent selectivity.

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Preparation of spinel nickel-cobalt oxide nanowrinkles/reduced graphene oxide hybrid for nonenzymatic glucose detection at physiological level

Cited by 85 publications

References 50 publications

A Facile Electrochemical Preparation of Violarite (Ni₂FeS₄) Nanosheets on Carbon Sheet and its Application towards Non-Enzymatic Glucose Sensing

A Facile Electrochemical Preparation of Violarite (Ni₂FeS₄) Nanosheets on Carbon Sheet and its Application towards Non-Enzymatic Glucose Sensing

“Dry” NiCo2O4 nanorods for electrochemical non-enzymatic glucose sensing

MWCNTs/Ionic Liquid/Graphene Quantum Dots Nanocomposite Coated with Nickel‐Cobalt Bimetallic Catalyst as a Highly Selective Non‐enzymatic Sensor for Determination of Glucose

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Preparation of spinel nickel-cobalt oxide nanowrinkles/reduced graphene oxide hybrid for nonenzymatic glucose detection at physiological level

Cited by 85 publications

References 50 publications

A Facile Electrochemical Preparation of Violarite (Ni2FeS4) Nanosheets on Carbon Sheet and its Application towards Non-Enzymatic Glucose Sensing

A Facile Electrochemical Preparation of Violarite (Ni2FeS4) Nanosheets on Carbon Sheet and its Application towards Non-Enzymatic Glucose Sensing

“Dry” NiCo2O4 nanorods for electrochemical non-enzymatic glucose sensing

MWCNTs/Ionic Liquid/Graphene Quantum Dots Nanocomposite Coated with Nickel‐Cobalt Bimetallic Catalyst as a Highly Selective Non‐enzymatic Sensor for Determination of Glucose

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A Facile Electrochemical Preparation of Violarite (Ni₂FeS₄) Nanosheets on Carbon Sheet and its Application towards Non-Enzymatic Glucose Sensing

A Facile Electrochemical Preparation of Violarite (Ni₂FeS₄) Nanosheets on Carbon Sheet and its Application towards Non-Enzymatic Glucose Sensing