Mechanistic study of glucose oxidation on copper sulfide modified glassy carbon electrode

Yang, Yingzhen; Li, Weikun; Zi, Junfeng

doi:10.1016/j.elecom.2013.07.012

Cited by 10 publications

(6 citation statements)

References 15 publications

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“…The glucose oxidation at S-rGO/CuS/GCE (f) achieves the very low potential of 0.32 V (onset potential) accompanied with the Cu(I)/Cu(II) redox couple. The typical oxidation of glucose at the S-rGO/CuS/GCE is electrocatalyzed by the Cu(I)/Cu(II) redox couple, according to the following reactions 34 : …”

Section: Resultsmentioning

confidence: 99%

Sonochemical Synthesis of Sulfur Doped Reduced Graphene Oxide Supported CuS Nanoparticles for the Non-Enzymatic Glucose Sensor Applications

Karikalan

Karuppiah

Elangovan³

2017

Sci Rep

224

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Over the present material synthesis routes, the sonochemical route is highly efficient and comfortable way to produce nanostructured materials. In this way, the copper sulfide (CuS-covellite) and sulfur doped reduced graphene oxide (S-rGO) nanocomposite was prepared by sonochemical method. Interestingly, the structure of the as-prepared S-rGO/CuS was changed from the covellite to digenite phase. Herein, the S-rGO was act as a mild oxidizer and liable for the structural transformations. These structural changes are sequentially studied by various physicochemical characterizations such as Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Transmission electron microscopy (TEM). After scrupulous structural evaluations, the transformation of CuS phase was identified and documented. This oxidized CuS has an excellent electrocatalytic activity when compare to the bulk CuS. This S-rGO/CuS was further used for the determination of glucose and acquired good electrocatalytic performances. This S-rGO/CuS was exhibited a wide linear concentration range, 0.0001–3.88 mM and 3.88–20.17 mM, and a low-level detection limit of 32 nM. Moreover, we have validated the practicability of our developed glucose sensor in real biological samples.

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Section: Resultsmentioning

confidence: 99%

Sonochemical Synthesis of Sulfur Doped Reduced Graphene Oxide Supported CuS Nanoparticles for the Non-Enzymatic Glucose Sensor Applications

Karikalan

Karuppiah

Elangovan³

2017

Sci Rep

224

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“…[ 45 ] In addition, the peak current at 0.45 V is related to the oxidation of Cu(I). [ 46 ] Figure 5b shows DPV curves of the CuS NPs/alginate nanocomposite film modified electrode in the presence of HQ with different concentrations. It is seen that the reduction peak current at 0.25 V increases with the increase of the HQ concentration.…”

Section: Resultsmentioning

confidence: 99%

Electrodeposited Alginate‐Based Green Synthesis of CuS Nanoparticles and Nanocomposite Films for Electrochemical and Colorimetric Detection

Wang

Liu

et al. 2022

Macro Materials & Eng

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CuS nanoparticles (NPs) and CuS NPs/alginate nanocomposite films are prepared using a novel method based on the coordinated electrodeposition of alginate. This method exquisitely utilizes the coordination of alginate with Cu 2+ ions to carry out the electrodeposition, and alginate as the stabilizer for CuS NPs and the major ingredient in the nanocomposite film. Thus, the method has many advantages such as facile operation, green route, mild conditions, and convenient post-treatment. After the electrodeposition, a smooth and homogeneous film has been electrodeposited on the anodic electrode. Transmission electron microscopy observation reveals that there are nanoparticles (the average size of 6.0 nm) in the electrodeposited film. The results from spectral analysis further confirm the existence of CuS NPs. The CuS NPs/alginate nanocomposite film modified electrode can be directly constructed by taking advantage of the electrodeposition, which shows the electrochemical detection capability towards H 2 O 2 and hydroquinone. The CuS NPs/alginate nanocomposite film also possesses the colorimetric detection capability toward H 2 O 2 and dopamine. Therefore, this study offers a green and convenient method for fabricating CuS NPs and nanocomposite films, which is promising for applications in functional nanocomposites and detection fields.

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“…Yang and coworkers 101 have prepared copper sulfide NPs by a simple aqueous route. The XRD analysis showed the formation of diffraction peaks that were well indexed to hexagonal CuS with JCPDS card no.…”

Section: Biomedical Applications Of Copper Sulfide Npsmentioning

confidence: 99%

“…Glucose was oxidized to gluconolactone by Cu( ii ) directly. The Cu( i ) produced experienced further two reactions 101 ( eqn (1)–(4) and Fig. 13 ).…”

Section: Biomedical Applications Of Copper Sulfide Npsmentioning

confidence: 99%

Copper sulfide nanostructures: synthesis and biological applications

et al. 2022

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Mechanistic study of glucose oxidation on copper sulfide modified glassy carbon electrode

Cited by 10 publications

References 15 publications

Sonochemical Synthesis of Sulfur Doped Reduced Graphene Oxide Supported CuS Nanoparticles for the Non-Enzymatic Glucose Sensor Applications

Sonochemical Synthesis of Sulfur Doped Reduced Graphene Oxide Supported CuS Nanoparticles for the Non-Enzymatic Glucose Sensor Applications

Electrodeposited Alginate‐Based Green Synthesis of CuS Nanoparticles and Nanocomposite Films for Electrochemical and Colorimetric Detection

Copper sulfide nanostructures: synthesis and biological applications

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