Simultaneous determination of catechol and hydroquinone with L-cysteine and nickel cobaltite Co-Functionalised Graphene Oxide Modified Glassy Carbon Electrode

Xue, Song; Wang, Kaiqian; Cheng, Yalin; Tu, Biyang; Xia, Yang; Yuan, Shengjie; Tao, Haisheng

doi:10.1080/03067319.2020.1865330

Cited by 8 publications

(2 citation statements)

References 40 publications

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“…NiCo 2 O 4 , with low activation energy of electron transfer between cations, exhibits better conductivity and electrochemical features compared to pure Co 3 O 4 and NiO. Several deficiencies have been reported for NiCo 2 O 4 , including low conductivity and easy accumulation on the electrode surface, hence resulting in poor sensitivity [36][37][38]. We can enhance the electrical conductivity and widen the surface area through the combination of composite materials.…”

Section: Introductionmentioning

confidence: 99%

Screen-Printed Electrode Surface Modification with NiCo2O4/RGO Nanocomposite for Hydroxylamine Detection

et al. 2021

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We developed a novel hydroxylamine sensor through the surface modification of screen-printed electrode (SPE) with NiCo2O4 nanoparticles/reduced graphene oxide (RGO) nanocomposite (NiCo2O4/RGO/SPE). We assessed the electrochemical response of hydroxylamine on the as-fabricated sensor, confirming the high electrocatalytic impact of hydroxylamine oxidation. The electrode produced sensitively responded to hydroxylamine under optimized conditions, with a low limit of detection (2.0 nM) and broad linear dynamic range (0.007–385.0 µM). The presence of NiCo2O4 combined with the modification of RGO resulted in sensitive detection and signal amplification of hydroxylamine oxidation. The proposed sensor was used to determine the existence of hydroxylamine in water samples.

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Section: Introductionmentioning

confidence: 99%

Screen-Printed Electrode Surface Modification with NiCo2O4/RGO Nanocomposite for Hydroxylamine Detection

et al. 2021

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“…In recent years, the electrochemical analysis method has been extensively applied in disease diagnosis, food safety, industrial wastewater detection and other fields because of the advantages of good accuracy, high sensitivity, strong selectivity, on-site analysis and real-time monitoring. [9][10][11] Metal-organic frameworks (MOFs) are materials with periodic network structures, which are formed by self-assembling between metal ions and organic ligands. 12 The metal active sites in the pores and on the surface of MOFs make them considered as a promising electrocatalyst, however, the low electrical conductivity of MOFs imposes restrictions on their utilization in the domain of electrochemistry.…”

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confidence: 99%

MOF-derived Cu/N–C Composite Based Electrochemical Sensor for Simultaneous Detection of Catechol and Hydroquinone

Wang

Liu

Zhang

et al. 2023

J. Electrochem. Soc.

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Cu/N-C derived from MOF composites were synthesized and characterized by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy, which was modified on the glassy carbon electrode (GCE) to construct a novel electrochemical sensor (Cu/N-C/GCE). Due to the good electrical conductivity and abundant catalytic active sites of Cu/N-C, Cu/N-C/GCE exhibited excellent electrocatalytic performance for catechol (CC) and hydroquinone (HQ) with the oxidation peak potential difference of 112 mV. The proposed sensor could realize the simultaneous detection of CC and HQ successfully. Under optimal conditions, the redox peak currents of both CC and HQ have good linear relationship with their concentrations in the ranges of 0.50-100.00 μM and 0.50-150.00 μM with the detection limits for CC and HQ of 0.12 and 0.09 μM, respectively. At the same time, the sensor exhibits good stability, reproducibility and selectivity in the analysis of practical samples.

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Poly-4-amino-6-chloro-1,3-benzene disulfonamide decorated pencil graphite electrode for the simultaneous electrochemical quantification of catechol and hydroquinone

Jyothi,

Vinod,

Chandran

et al. 2024

J Appl Electrochem

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Simultaneous determination of catechol and hydroquinone with L-cysteine and nickel cobaltite Co-Functionalised Graphene Oxide Modified Glassy Carbon Electrode

Cited by 8 publications

References 40 publications

Screen-Printed Electrode Surface Modification with NiCo2O4/RGO Nanocomposite for Hydroxylamine Detection

Screen-Printed Electrode Surface Modification with NiCo2O4/RGO Nanocomposite for Hydroxylamine Detection

MOF-derived Cu/N–C Composite Based Electrochemical Sensor for Simultaneous Detection of Catechol and Hydroquinone

Poly-4-amino-6-chloro-1,3-benzene disulfonamide decorated pencil graphite electrode for the simultaneous electrochemical quantification of catechol and hydroquinone

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