Non-enzymatic hydrogen peroxide detection at NiO nanoporous thin film- electrodes prepared by physical vapor deposition at oblique angles

Salazar, Pedro; Rico, Víctor J.; González‐Elipe, Agustín R.

doi:10.1016/j.electacta.2017.03.087

Cited by 62 publications

(33 citation statements)

References 58 publications

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“…The comparison characteristics of the NiO nanofibers with relevant devices found in literature is provided in Table . It can be observed that the performance of our sensors is comparable, and in some cases, it is better than the reported devices . Furhermore, the LOD and linear range of detection of our electrochemical sensing is comaprable with colorimetric devices .…”

Section: Resultsmentioning

confidence: 64%

Facile Synthesis of Electrospun Nickel (II) Oxide Nanofibers and Its Application for Hydrogen Peroxide Sensing

et al. 2018

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The aim of the present study is to report an alternative technique of creating nickel oxide (NiO) nanofibers, manufactured by facile and economical electrospinning process. The crystallinity nature of NiO nanofibers is investigated by X‐ray diffraction (XRD). Nanofibers morphology is examined by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The diameter of the nanofibers is varying from of 100–150 nm. Furthermore, Selected Area Electron Diffraction (SAED) pattern revealed that NiO nanofibers are exhibiting a single phase crystalline structure. The NiO nanofibers modified glassy carbon electrode (GCE) showed an excellent performance towards the electrocatalytic oxidation of hydrogen peroxide (H2O2). This sensor showed a wide range of detection from 10 μM to 50 mM, low limit of detection 0.33 μM and high sensitivity 42.09 μA μM−1cm−2 for H2O2 detection. The entire analysis reaffirms the suitability of NiO nanofibers as one of the futuristic sensing material for H2O2 detection.

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Section: Resultsmentioning

confidence: 64%

Facile Synthesis of Electrospun Nickel (II) Oxide Nanofibers and Its Application for Hydrogen Peroxide Sensing

et al. 2018

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“…Detection of Zn ions in perspiration is difficult due to concentrations that can be as low as several hundred ppb. Conventional analysis instruments, including atomic absorption spectroscopy and inductively coupled plasma atomic emission spectrometry (ICP-AES), are not suitable due to their associated bulk, inconvenience, and expense [32,33]. To overcome these disadvantages, a sensitive and effective method called anodic stripping voltammetry (ASV) has been reported as a powerful tool for detecting the presence of Zn ions.…”

Section: Introductionmentioning

confidence: 99%

A rime ice-inspired bismuth-based flexible sensor for zinc ion detection in human perspiration

et al. 2021

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A nature-inspired special structure of bismuth is newly presented as Zn ion sensing layer for high-performance electrochemical heavy metal detection sensor applications. The rime ice-like bismuth (RIBi) has been synthesized using an easy ex situ electrodeposition method on the surface of a flexible graphene-based electrode. The flexible graphene-based electrode was fabricated via simple laser-writing and substrate-transfer techniques. The Zn ion sensing performance of the proposed heavy metal sensor was evaluated by square wave anodic stripping voltammetry after investigating the effects of several parameters, such as preconcentration potential, preconcentration time, and pH of acetate buffer. The proposed RIBi-based heavy metal sensor demonstrated a good linear relationship between concentration and current in the range 100-1600 ppb Zn ions with an acceptable sensitivity of 106 nA/ppb•cm 2. The result met the requirements in terms of common human perspiration levels (the average Zn ion concentration in perspiration is 800 ppb). In addition, the heavy metal sensor response to Zn ions was successfully performed in human perspiration samples as well, and the results were consistent with those measured by atomic absorption spectroscopy. Besides, the fabricated Zn ion sensor exhibited excellent selectivity, repeatability, and flexibility. Finally, a PANI-LIG-based pH sensor (measurement range: pH 4-7) was also integrated with the Zn ion sensor to form a single chip hybrid sensor. These results may provide a great possibility for the use of the proposed flexible sensor to realize wearable perspiration-based healthcare systems.

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“…MOSs gas sensors have been widely studied due to their low costs, easy to miniaturize and production, high stability and reliability. The metal oxide based resistive sensors can be designed to operate under different conditions including high temperatures, chemically active environment, in humid conditions and so on [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Cobalt Doped SnO2 Thin Film for Detection of Vapor Phase Hydrogen Peroxide

Aleksanyan

Aroutiounian

Shahnazaryan

et al. 2021

Armenian Journal of Physics

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A technology was developed for manufacturing solid-state semiconductor sensor sensitive to hydrogen peroxide vapors. Gas sensitive nanostructured films made of doped metal oxide SnO2<Co> were manufactured by the high-frequency magnetron sputtering method. The chemical composition of prepared SnO2<Co> targets was analyzed and the thickness of the deposited doped metal oxide film was measured. The morphology of the deposited Co-doped SnO2 film was studied by scanning electron microscopy. The gas sensing characteristics to the different concentrations of hydrogen peroxide vapors at various operating temperatures were also studied. The Co-doped SnO2 sensor showed enough sensitivity to very low concentration of hydrogen peroxide vapors (875 ppb) at the operating temperature of 100 °C. The SnO2<Co> based sensor can be successfully used in medical diagnostic apparatus for determining low concentration of hydrogen peroxide vapors in exhaled air.

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Non-enzymatic hydrogen peroxide detection at NiO nanoporous thin film- electrodes prepared by physical vapor deposition at oblique angles

Cited by 62 publications

References 58 publications

Facile Synthesis of Electrospun Nickel (II) Oxide Nanofibers and Its Application for Hydrogen Peroxide Sensing

Facile Synthesis of Electrospun Nickel (II) Oxide Nanofibers and Its Application for Hydrogen Peroxide Sensing

A rime ice-inspired bismuth-based flexible sensor for zinc ion detection in human perspiration

Cobalt Doped SnO2 Thin Film for Detection of Vapor Phase Hydrogen Peroxide

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