Electrochemical behavior and voltammetric determination of vanillin based on an acetylene black paste electrode modified with graphene–polyvinylpyrrolidone composite film

Deng, Peihong; Xu, Zhifeng; Zeng, Rongying; Ding, Chunmei

doi:10.1016/j.foodchem.2015.02.035

Cited by 134 publications

(78 citation statements)

References 30 publications

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“…All CV curves were obtained in the presence of 0.1 M PBS electrolyte (pH 7.0) together with 240 mM VAN at a constant scan rate of 50 mV s À1 . 44 Moreover, the product of VAN appears to be irreversible. 3A(a)) and the blank test (Fig.…”

Section: Electrochemical Oxidation Of Vanillinmentioning

confidence: 99%

Cajeput tree bark derived activated carbon for the practical electrochemical detection of vanillin

et al. 2015

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Cajeput tree bark derived activated carbon (TBAC) has been prepared and exploited for the electrochemical detection of vanillin (VAN). The physicochemical properties of the TBACs graphitized at different temperatures were characterized using a variety of analytical and spectroscopic techniques, which include X-ray diffraction, field emission-scanning/transmission electron microscopy (FE-SEM/TEM), N 2 adsorption/ desorption isotherm measurements, and thermogravimetric analysis (TGA). Utilized as VAN sensors, the electrochemical activities of various TBAC modified electrodes were assessed using cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The observed superior electrocatalytic activity for the oxidation of VAN is attributed to the high surface area and desirable porosities possessed by TBAC. The VAN sensor exhibited a wide linear range (5-1150 mM), low detection limit (0.68 mM), and excellent sensitivity (0.32 mA mM À1 cm À2 ), which surpass the existing carbon-based electrodes reported in the literature. The facile VAN sensor subsequently realized is also advantaged by its simplicity, stability, reliability, durability, and low cost, which render real sample analysis and practical industrial applications.

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Section: Electrochemical Oxidation Of Vanillinmentioning

confidence: 99%

Cajeput tree bark derived activated carbon for the practical electrochemical detection of vanillin

et al. 2015

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“…With the introduction of bimetallic Ag-Pd nanoparticles on the GO films (curve d), the oxidation peak potential of vanillin shifts towards more negative potential (0.62 V) accompanied with an enhanced current response which may be caused by an enlarged surface area from the 3D structure. The peak potential for the vanillin oxidation at Ag-Pd/GO/GCE is also less than those acquired at the other reported electrodes such as nitrogen-doped graphene/carbon nanotubes/GCE (about 0.82 V) [3], manganese dioxide-graphene oxide/GCE (about 0.90 V) [1], graphene/polyvinylpyrrolidone modified electrode (0.964 V and 0.697 V) [21] and boron-doped diamond electrode (1.15 V) [11]. These obtained results confirm that the combination of Ag-Pd and GO improves the characteristics of the electrode for the oxidation of vanillin.…”

Section: Structural Characterizationmentioning

confidence: 54%

“…The number of transferred electron (n) has been determined as 2 in the above section, so the proton number for the vanillin oxidation can be considered to be 2. Based on the above results and related reports [21,23], the oxidation mechanism of vanillin involving two electrons and two protons is proposed and illustrated in Scheme 1 (see Scheme 1 in SI). Moreover, the excellent oxidation peak current was acquired at the pH of 6.0 (Fig.…”

Section: Influence Of the Ph Valuementioning

confidence: 76%

Bimetallic Ag-Pd nanoparticles-decorated graphene oxide: a fascinating three-dimensional nanohybrid as an efficient electrochemical sensing platform for vanillin determination

Feng

et al. 2015

Electrochimica Acta

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“…To avoid these problems, the modification of electrochemical working electrode is an excellent alternative. In this sense, many researchers have attempted to diminish the over‐potentials by using various modified electrodes such as, graphene , silver nanoparticles (Ag‐NPs) , gold nanoparticles (Au‐NPs) , and multi‐walled carbon nanotubes (MWCNTs) . However, the performance of some electrodes was still ineffective enough.…”

Section: Introductionmentioning

confidence: 99%

Development of an Aluminium Doped TiO₂ Nanoparticles‐modified Screen Printed Carbon Electrode for Electrochemical Sensing of Vanillin in Food Samples

et al. 2018

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A new chemically modified electrode based on titanium dioxide nanoparticles (TiO2‐NPs) has been developed. Aluminium was incorporated into the TiO2‐NPs to prepare aluminium doped TiO2 nanoparticles (Al‐TiO2‐NPs). Aluminium doped TiO2 nanoparticles‐modified screen printed carbon electrode (Al‐TiO2‐NPs/SPCE) was employed as easy, efficient and rapid sensor for electrochemical detection of vanillin in various types of food samples. Al‐TiO2‐NPs were characterized by energy‐dispersive X‐ray (EDX), transmission electron microscopy (TEM), and X‐ray diffraction (XRD) and analyses showing that the average particle sizes varied for the Al‐NPs (7.63 nm) and Al‐TiO2‐NPs (7.47 nm) with spherical crystal. Cyclic voltammetry (CV) and linear sweep voltammetry (LSV) were used to optimize the analytical procedure. A detection limit of vanillin was 0.02 μM, and the relative standard deviation (RSD) was 3.50 %, obtained for a 5.0 μM concentration of vanillin. The electrochemical behaviour of several compounds, such as vanillic acid, vanillic alcohol, p‐hydroxybenzaldehyde and p‐hydroxybenzoic, etc., generally present in natural vanilla samples, were also studied to check the interferences with respect to vanillin voltammetric signal. The applicability was demonstrated by analysing food samples. The obtained results were compared with those provided by a previous method based on liquid chromatography for determination of vanillin.

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Electrochemical behavior and voltammetric determination of vanillin based on an acetylene black paste electrode modified with graphene–polyvinylpyrrolidone composite film

Cited by 134 publications

References 30 publications

Cajeput tree bark derived activated carbon for the practical electrochemical detection of vanillin

Cajeput tree bark derived activated carbon for the practical electrochemical detection of vanillin

Bimetallic Ag-Pd nanoparticles-decorated graphene oxide: a fascinating three-dimensional nanohybrid as an efficient electrochemical sensing platform for vanillin determination

Development of an Aluminium Doped TiO₂ Nanoparticles‐modified Screen Printed Carbon Electrode for Electrochemical Sensing of Vanillin in Food Samples

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Electrochemical behavior and voltammetric determination of vanillin based on an acetylene black paste electrode modified with graphene–polyvinylpyrrolidone composite film

Cited by 134 publications

References 30 publications

Cajeput tree bark derived activated carbon for the practical electrochemical detection of vanillin

Cajeput tree bark derived activated carbon for the practical electrochemical detection of vanillin

Bimetallic Ag-Pd nanoparticles-decorated graphene oxide: a fascinating three-dimensional nanohybrid as an efficient electrochemical sensing platform for vanillin determination

Development of an Aluminium Doped TiO2 Nanoparticles‐modified Screen Printed Carbon Electrode for Electrochemical Sensing of Vanillin in Food Samples

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Development of an Aluminium Doped TiO₂ Nanoparticles‐modified Screen Printed Carbon Electrode for Electrochemical Sensing of Vanillin in Food Samples