A sensitive nonenzymatic hydrogen peroxide sensor using cadmium oxide nanoparticles/multiwall carbon nanotube modified glassy carbon electrode

Butwong, Nutthaya; Zhou, Lin; Ngeontae, Wittaya; Burakham, Rodjana; Moore, Eric; Srijaranai, Supalax; Luong, John H. T.; Glennon, Jeremy D.

doi:10.1016/j.jelechem.2013.12.028

Cited by 55 publications

(28 citation statements)

References 36 publications

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“…H 2 O 2 was first decomposed into H 2 O and O 2 through the catalyzation of SnFe 2 O 4 NCs, and the O 2 was later reduced back to H 2 O 2 during the cyclic voltammetric scan. The relevant reactions are as follows:

2 H_{2} O_{2} \to O_{2} + 2 H_{2} O

O_{2} + 2 e^{-} + 2 H^{+} \to H_{2} O_{2}

…”

Section: Resultsmentioning

confidence: 99%

SnFe₂O₄ Nanocrystals as Highly Efficient Catalysts for Hydrogen‐Peroxide Sensing

Lee

Liu

2016

Chemistry A European J

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SnFe2 O4 nanocrystals (NC), prepared with a simple one-step carrier-solvent-assisted interfacial reaction process, were developed as highly efficient catalysts for hydrogen peroxide sensing. These NCs, with a size of around 7 nm, served as the sensing catalyst and were decorated onto the pore surfaces of a porous fluorine-doped tin oxide (PFTO) host electrode, prepared from commercial FTO glass with a simple anodic treatment, to form the sensing electrode for hydrogen peroxide. The SnFe2 O4 NCs-loaded PFTO electrode exhibited an ultra-high sensitivity of 1027 mA m(-1) cm(-2) toward hydrogen peroxide, outperforming Pt NCs-loaded PFTO electrodes. The SnFe2 O4 NCs-loaded PFTO electrode proved a promising relatively low cost, high performance sensing electrode for hydrogen peroxide.

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2 H_{2} O_{2} \to O_{2} + 2 H_{2} O

O_{2} + 2 e^{-} + 2 H^{+} \to H_{2} O_{2}

…”

Section: Resultsmentioning

confidence: 99%

SnFe₂O₄ Nanocrystals as Highly Efficient Catalysts for Hydrogen‐Peroxide Sensing

Lee

Liu

2016

Chemistry A European J

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“…In particular, transition metal oxides are a promising candidate because they exhibit efficient electrocatalytic disproportionation of H 2 O 2 and possess good characteristics such as high surface area, a large number of active sites, low cost, natural abundance, easy preparation, and high thermodynamic stability for the modification of bare electrode surfaces [12]. For example, copper oxide- [13], iron oxide- [14], cadmium oxide- [15], and zinc oxide-modified [16] electrodes display high sensitivity, low detection limits, and rapid response for H 2 O 2 determination.…”

Section: Introductionmentioning

confidence: 99%

Nonenzymatic electrochemical sensing of hydrogen peroxide based on a polyaniline-MnO2 nanofiber-modified glassy carbon electrode

Lee

Hong

2015

J Appl Electrochem

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We report the synthesis of polyaniline-manganese dioxide (PANI-MnO 2 ) nanofibers and their applications as nonenzymatic electrochemical sensors for the determination of hydrogen peroxide (H 2 O 2 ). The PANIMnO 2 nanofibers were synthesized via a one-step mixing process from the as-prepared PANI nanofiber aqueous dispersion and the aqueous solution of KMnO 4 . The morphology and chemical composition of the synthesized PANI-MnO 2 nanofibers were characterized by field-emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy, and X-ray diffraction. A facile electrochemical hydrogen peroxide sensor based on a PANI-MnO 2 -modified glassy carbon electrode (PANI-MnO 2 /GCE) was fabricated by a drop-casting method, and its electrochemical behavior was investigated using electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and amperometry. The results clearly exhibited good electrocatalytic activity of the PANI-MnO 2 /GCE toward H 2 O 2 reduction in pH 7.4 phosphate buffer solution (PBS). The nonenzymatic H 2 O 2 sensor displayed a wide linear range (5-50 lM and 0.05-10 mM), low detection limit (0.8 lM at S/N = 3), high sensitivity (403.3 lA mM -1 cm -2 ), and negligible interference from ascorbic acid, uric acid, L-cysteine, and glucose at an applied detection potential of -0.4 V (vs. Ag/AgCl).

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“…hancing sensitivity and selectivity) include functionalization with conducting polymers, [79][80][81] mixing with surfac-29 tants or polyelectrolytes, [82][83][84] modification with metal oxides or nanoparticles, [85][86][87][88] incorporation of enzymes [84, 30 89,90] and doping with heteroatoms. [91,92] In addition, field effect transistors composed of aligned carbon nanotubes 31 with proper surface modifications can also be used as chemical or electrochemical sensors.…”

mentioning

confidence: 99%

“…Butwong et al [87] utilized electrochemical deposition to modify MWCNTs with cadmium oxide (CdO) na- …”

mentioning

confidence: 99%

Nanocarbon-based electrochemical systems for sensing, electrocatalysis, and energy storage

2014

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A sensitive nonenzymatic hydrogen peroxide sensor using cadmium oxide nanoparticles/multiwall carbon nanotube modified glassy carbon electrode

Cited by 55 publications

References 36 publications

SnFe₂O₄ Nanocrystals as Highly Efficient Catalysts for Hydrogen‐Peroxide Sensing

SnFe₂O₄ Nanocrystals as Highly Efficient Catalysts for Hydrogen‐Peroxide Sensing

Nonenzymatic electrochemical sensing of hydrogen peroxide based on a polyaniline-MnO2 nanofiber-modified glassy carbon electrode

Nanocarbon-based electrochemical systems for sensing, electrocatalysis, and energy storage

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A sensitive nonenzymatic hydrogen peroxide sensor using cadmium oxide nanoparticles/multiwall carbon nanotube modified glassy carbon electrode

Cited by 55 publications

References 36 publications

SnFe2O4 Nanocrystals as Highly Efficient Catalysts for Hydrogen‐Peroxide Sensing

SnFe2O4 Nanocrystals as Highly Efficient Catalysts for Hydrogen‐Peroxide Sensing

Nonenzymatic electrochemical sensing of hydrogen peroxide based on a polyaniline-MnO2 nanofiber-modified glassy carbon electrode

Nanocarbon-based electrochemical systems for sensing, electrocatalysis, and energy storage

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SnFe₂O₄ Nanocrystals as Highly Efficient Catalysts for Hydrogen‐Peroxide Sensing

SnFe₂O₄ Nanocrystals as Highly Efficient Catalysts for Hydrogen‐Peroxide Sensing