A hydroxylamine electrochemical sensor based on electrodeposition of porous ZnO nanofilms onto carbon nanotubes films modified electrode

Zhang, Cuihong; Wang, Guangfeng; Liu, Min; Feng, Yuehua; Zhang, Zhidan; Fang, Bin

doi:10.1016/j.electacta.2009.12.068

Cited by 140 publications

(48 citation statements)

References 48 publications

(48 reference statements)

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“…Figure 7A shows the differential pulse voltammograms (DPVs) of various concentrations of hydroxylamine in a Table 3, some of the electrocatalytic characteristics obtained in this work are compared with those previously reported by others. [18][19][20]22,23 The data in Table 3 show that the responses of the proposed modified electrode are in some cases, superior, especially the sensitivity, as compared to those reported for the other modified electrodes.…”

Section: Rotating Disk Electrode Measurementsmentioning

confidence: 78%

“…Numerous methods have been developed for the determination of hydroxylamine. [10][11][12][13][14][15][16][17][18][19][20][21][22][23] For example, chromatographic, 10 spectrophotometric, [11][12][13] and electrochemical, [14][15][16][17][18][19][20][21][22][23] methods have been successfully applied to the determination of hydroxylamine. In this regard, we reported the preparation of a coumestan derivative modified carbon paste electrode, 19 and a rutin multi-wall carbon nanotubes modified glassy carbon electrode, 20 and their application in the electrocatalytic oxidation of hydroxylamine.…”

Section: Introductionmentioning

confidence: 99%

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Differential pulse voltammetric determination of hydroxylamine at an indenedione derivative electrodeposited on a multi-wall carbon nanotube modified glassy carbon electrode

Zare¹,

Chatraei²,

Nasirizadeh³

2010

J. Braz. Chem. Soc.

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A eletrodeposição de filmes finos de um derivado da indenodiona em eletrodo de carbono vítreo modificado por nanotubos de carbono de paredes múltiplas (ECV-NTCPM), mostra um par de picos com características de confinamento em superfície. O eletrodo de carbono vítreo modificado por NTCPM e pela indenodiona (ECV-NTCPMI) apresenta uma alta atividade catalítica para a eletro-oxidação de hidroxilamina. O potencial do pico anódico para a oxidação da hidroxilamina em ECV-NTCPMI é aproximadamente 140 mV, enquanto em ECV-NTCPM e em ECV modificado pela indenodiona (ECV-MI), os potenciais de pico aparecem em aproximadamente 505 e 525 mV, respectivamente. Os resultados mostram que há um aumento da corrente do pico anódico de oxidação da hidroxilamina em ECV-NTCPMI quando comparado ao valor obtido com ECV-MI ou ECV-NTCPM. Os resultados também sugerem que a combinação de NTCPM com um mediador melhora, definitivamente, as características de oxidação da hidroxilamina. Além disso, a voltametria de pulso diferencial exibe dois intervalos dinâmicos lineares de 1,0-10,0 e 10,0-100,0 µmol L -1 com sensitividade de 0,1955 e 0,0841 µA L µmol -1 respectivamente e um limite de detecção mais baixo, de 0,8 µmol L -1 para hidroxilamina. A excelente reversibilidade eletroquímica do par redox, a simplicidade técnica, e a boa atividade eletrocatalítica para hidroxilamina são as vantagens deste eletrodo modificado. Finalmente, a atividade do ECV-NTCPMI foi também investigada para a determinação da hidroxilamina em duas amostras.The electrodeposited thin films of an indenedione derivative on multi-wall carbon nanotubes modified glassy carbon electrode (MWCNT-GCE) shows one pair of peaks with surface confined characteristics. The indenedione MWCNT modified GCE (IMWCNT-GCE) presents a highly catalytic activity toward hydroxylamine electro-oxidation. The anodic peak potential for hydroxylamine oxidation at IMWCNT-GCE is about 140 mV whereas at MWCNT-GCE and indenedione modified GCE (IMGCE), the peak potentials appear at about 505 and 525 mV respectively. The results show that there is an enhancement of the anodic peak current of hydroxylamine oxidation at IMWCNT-GCE as compared to the value obtained at IMGCE or MWCNT-GCE. The results also suggest that a combination of MWCNT and mediator definitely improves the characteristics of hydroxylamine oxidation. Furthermore, differential pulse voltammetry exhibits two linear dynamic ranges of 1.0-10.0 and 10.0-100.0 µmol L -1 with sensitivity of 0.1955 and 0.0841 µA L µmol -1 respectively and a lower detection limit of 0.8 µmol L -1 for hydroxylamine. Excellent electrochemical reversibility of the redox couple, technical simplicity, and good electrocatalytic activity for hydroxylamine are the advantages of this modified electrode. Finally, the activity of IMWCNT-GCE was also investigated for hydroxylamine determination in two natural samples.

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Section: Rotating Disk Electrode Measurementsmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Differential pulse voltammetric determination of hydroxylamine at an indenedione derivative electrodeposited on a multi-wall carbon nanotube modified glassy carbon electrode

Zare¹,

Chatraei²,

Nasirizadeh³

2010

J. Braz. Chem. Soc.

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“…However, hydroxylamine exhibits irreversible oxidation requiring large overpotential at conventional electrodes. Recently, various chemically modified electrodes (CMEs) have been constructed and applied in the determination of hydroxylamine [10][11][12][13][14][15][16], which can significantly lower the overpotential and enhance the oxidation current response.…”

Section: Introductionmentioning

confidence: 99%

A hydroxylamine electrochemical sensor based on electrodeposition of platinum nanoclusters on choline film modified glassy carbon electrode

Xie

2012

J Appl Electrochem

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A sensitive hydroxylamine sensor was developed based on electrodeposition of Pt nanoclusters on choline film modified glassy carbon electrode (nano-Pt/Ch/GCE). The properties of the composites were characterized by field emission scanning electron microscope, X-ray photoelectron spectroscopy, powder X-ray diffraction, and electrochemical investigations. The designed nano-Pt/Ch/GCE showed a high sensing performance for hydroxylamine in a wide concentration ranges of 5.0 9 10 -7 -1.1 9 10 -3 M and 1.1 9 10 -3 -19 9 10 -3 M. The detection limit was 0.07 lM (s/n = 3). The proposed electrode presented excellent operational and storage stability for the determination of hydroxylamine. Moreover, the sensor showed good sensitivity, selectivity, and reproducibility properties. All the results indicated the designed sensor had a good potential application in the determination of hydroxylamine.

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“…[7][8][9][10] Compared to the other methods, the electrochemical method has various advantages such as low detection limit, fast response, low cost, and portability. [11][12][13] Most bare electrodes used for the electrochemical detection of hydroxylamine have a number of limitations (e.g., low selectivity and reproducibility, high overpotential, and low stability over a wide range of solution compositions).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Hydroxylamine via Au-Pt Alloy Nanoparticle-modified Single-walled Carbon Nanotube Electrodes

Geng

Tran

et al. 2017

ANAL. SCI.

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Our recent studies have demonstrated that SWCNT electrodes have strong electrocatalytic activity when modified with metal 2017 © The Japan Society for Analytical Chemistry † To whom correspondence should be addressed. In the present study, we developed an electrochemical sensor for highly sensitive detection of hydroxylamine using Au-Pt alloy nanoparticles. Au-Pt alloy nanoparticles were electrochemically deposited on a working electrode made of singlewalled carbon nanotubes. The framework composition in the Au-Pt alloy nanoparticle was easily controlled by adjusting the Au 3+ :Pt 4+ composition ratio in the precursor solution. Morphological and chemical characterizations of the resulting Au-Pt alloy nanoparticles were performed using field emission scanning electron microscopy, X-ray diffraction, and energy dispersion X-ray spectroscopy. When the Au 3+ :Pt 4+ ratio in the precursor solution was 1:5, the ratio of Au:Pt atom in alloy nanoparticle was about 6:4. Au60Pt40 alloy nanoparticles were found to have the optimum synthetic ratio for hydroxylamine detection. The electrocatalytic performance of Au-Pt alloy nanoparticles in the presence of hydroxylamine was also characterized using cyclic voltammetry, differential pulse voltammetry, and chronoamperometry. In the chronoamperometric detection of hydroxylamine, the sensor exhibited a detection limit of 0.80 μM (S/N = 3) and a high sensitivity of 184 μA mM -1 cm -2 . Moreover, the amperometric response of the sensor in 1 mM hydroxylamine was stable for a long time (450 s). Long-term stability tests showed that the current responses to hydroxylamine were 96, 91 and 85% of the initial signal value after storage for 5, 10, and 20 days, respectively.

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A hydroxylamine electrochemical sensor based on electrodeposition of porous ZnO nanofilms onto carbon nanotubes films modified electrode

Cited by 140 publications

References 48 publications

Differential pulse voltammetric determination of hydroxylamine at an indenedione derivative electrodeposited on a multi-wall carbon nanotube modified glassy carbon electrode

Differential pulse voltammetric determination of hydroxylamine at an indenedione derivative electrodeposited on a multi-wall carbon nanotube modified glassy carbon electrode

A hydroxylamine electrochemical sensor based on electrodeposition of platinum nanoclusters on choline film modified glassy carbon electrode

Electrochemical Detection of Hydroxylamine via Au-Pt Alloy Nanoparticle-modified Single-walled Carbon Nanotube Electrodes

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