Effective hydrogen gas sensor based on NiO@rGO nanocomposite

Ren, Haibo; Gu, Cuiping; Joo, Sang Woo; Zhao, Jingjuan; Sun, Yong; Huang, Jiarui

doi:10.1016/j.snb.2018.03.130

Cited by 123 publications

(34 citation statements)

References 49 publications

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“…(4) Because of the high conductivity of carbon nanomaterials, the composites of SMONs combined with carbon nanomaterials can achieve fast response/recovery. (5) The photo-generated electrons on the surfaces of SMON sensing materials can enhance the chemisorption of oxygen molecules to form more O 2 À , which can enhance the sensitivity and response/recovery speed of the SMONs. (6) RT flexible gas sensors based on the sensing layer of the SMON sensing materials have excellent mechanical robustness and can maintain good sensing performance after repeated bending/recovering.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, development of high-precision gas sensors with high sensitivity, fast response, good selectivity, low limit of detection (LOD), as well as in situ and real-time monitoring capabilities is paramount. 1,2 For this purpose, various types of gas sensors have been developed, mainly including resistive, [3][4][5] optical, [6][7][8][9] ultrasonic and acoustic wave, 10-12 thermoelectric 13,14 and electrochemical [15][16][17] ones.…”

Section: Introductionmentioning

confidence: 99%

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Advances in designs and mechanisms of semiconducting metal oxide nanostructures for high-precision gas sensors operated at room temperature

et al. 2019

Mater. Horiz.

596

328

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Advances in designs and mechanisms of semiconducting metal oxide nanostructures for high-precision gas sensors operated at room temperature

et al. 2019

Mater. Horiz.

596

328

View full text Add to dashboard Cite

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“…Graphene, which was first discovered by K. Novoselov and K. A. Geim in 2004, has recently gained researchers’ attention because of its extraordinary electrical, thermal, and mechanical characteristics [ 19 ]. Reduced graphene oxide (rGO) is a candidate for obtaining room-temperature CO 2 gas sensing properties close to graphene, such as high electron mobility, high signal-to-noise ratio, and suitability for large-scale synthesis [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

A Highly Sensitive Room Temperature CO2 Gas Sensor Based on SnO2-rGO Hybrid Composite

et al. 2021

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A tin oxide (SnO2) and reduced graphene oxide (rGO) hybrid composite gas sensor for high-performance carbon dioxide (CO2) gas detection at room temperature was studied. Since it can be used independently from a heater, it emerges as a promising candidate for reducing the complexity of device circuitry, packaging size, and fabrication cost; furthermore, it favors integration into portable devices with a low energy density battery. In this study, SnO2-rGO was prepared via an in-situ chemical reduction route. Dedicated material characterization techniques including field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray (EDX) spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) were conducted. The gas sensor based on the synthesized hybrid composite was successfully tested over a wide range of carbon dioxide concentrations where it exhibited excellent response magnitudes, good linearity, and low detection limit. The synergistic effect can explain the obtained hybrid gas sensor’s prominent sensing properties between SnO2 and rGO that provide excellent charge transport capability and an abundance of sensing sites.

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“…Recently, more studies are focused on the metal oxides such as zinc oxide, nickel oxide, magnesium oxide, etc. Furthermore, considerable attention has been focused on the use of nickel oxide nanoparticles (NiONPs) in various applications such as gas sensors, magnetic materials, catalysis, and electrocatalytic films [ 14 , 15 , 16 , 17 ]. Another important metal oxide is magnesium oxide nanoparticles (MgONPs) which is a very interesting alkaline oxide that has a high specific surface area with unique optical, catalytic, mechanical, and chemical properties [ 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

New Functionalized Polymeric Sensor Based NiO/MgO Nanocomposite for Potentiometric Determination of Doxorubicin Hydrochloride in Commercial Injections and Human Plasma

Alarfaj

El‐Tohamy

2020

Polymers

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The ultra-functional potential of nickel oxide (NiO) and magnesium oxide (MgO) nanoparticles (NPs), provides for extensive attention in the use of these metal oxides as a remarkable and electroactive nanocomposite in potentiometric and sensing investigations. This work proposed a new strategy for quantifying doxorubicin hydrochloride (DOX) in pharmaceuticals and human plasma by preparing a NiO/MgO core-shell nanocomposite modified coated wire membrane sensor. Doxorubicin hydrochloride was incorporated with phosphomolybdic acid (PMA) to produce doxorubicin hydrochloride phosphomolybdate (DOX-PM) as an electroactive material in the presence of polymeric high molecular weight poly vinyl chloride (PVC) and solvent mediator o-nitrophenyloctyl ether (o-NPOE). The modified sensor exhibited ultra sensitivity and high selectivity for the detection and quantification of doxorubicin hydrochloride with a linear relationship in the range of 1.0 × 10−11–1.0 × 10−2 mol L−1. The equation of regression was estimated to be EmV = (57.86 ± 0.8) log [DOX] + 723.19. However, the conventional type DOX-PM showed a potential response over a concentration range of 1.0 × 10−6–1.0 × 10−2 mol L−1 and a regression equation of EmV = (52.92 ± 0.5) log [DOX] + 453.42. The suggested sensors were successfully used in the determination of doxorubicin hydrochloride in commercial injections and human plasma.

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Effective hydrogen gas sensor based on NiO@rGO nanocomposite

Cited by 123 publications

References 49 publications

Advances in designs and mechanisms of semiconducting metal oxide nanostructures for high-precision gas sensors operated at room temperature

Advances in designs and mechanisms of semiconducting metal oxide nanostructures for high-precision gas sensors operated at room temperature

A Highly Sensitive Room Temperature CO2 Gas Sensor Based on SnO2-rGO Hybrid Composite

New Functionalized Polymeric Sensor Based NiO/MgO Nanocomposite for Potentiometric Determination of Doxorubicin Hydrochloride in Commercial Injections and Human Plasma

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