Discriminative and rapid detection of ozone realized by sensor array of Zn2+ doping tailored MoS2 ultrathin nanosheets

Shao, Linna; Wu, Zhaofeng; Duan, Haiming; Shaymurat, Talgar

doi:10.1016/j.snb.2017.11.166

Cited by 52 publications

(36 citation statements)

References 52 publications

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“…Development of novel materials for the formation of devices optimized for their use for the detection of target gas contaminants while operating in hazardous environments has always been the subject of prime interest. Up to today, many successes on the pollution gas sensors based on low-dimensional nanostructured materials have been achieved and reported [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Super Stable Pollution Gas Sensor Based on Functionalized 2D Boron Nitride Nanosheet Materials for High Humidity Environments

2018

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We report on studies of new gas sensing devices to be used in high humidity environments. Highly thermal-stable, super hydrophobic 2-dimensional (2D) boron nitride nanosheets (BNNSs) functionalized with Pt nanoparticles were prepared and used as an active layer for the prototype. The morphologic surface, crystallographic structures and chemical compositions of the synthesized 2D materials were characterized by using optical microscope, scanning electron microscope (SEM), transmission electron microscope (TEM) and atomic force microscope (AFM) and Raman scattering, respectively. The experimental data reveals that high-quality BNNSs were prepared. A pair of Au electrodes were combined with a basic electrical circuit and the 2D sensing material to form high-performance gas sensors for the detection of pollution gases. The present structure is simple and the fabrication is easy and fast, which ensures the creation of a low-cost prototype with harsh (high humidity, high temperature) environment resistance and potential for miniaturization. The responses of the prototype to different target gases with different concentrations were characterized. The influences of the operating temperature and bias voltage effect on sensing performances were also investigated. The fabricated sensors appear to have high selectivity, high sensitivity and fast response to target gases. The sensing mechanism in the present case is attributed to the electron donation from the target gas molecules to the active layer, leading to the change of electrical properties on the surface of BNNS layer.

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Section: Introductionmentioning

confidence: 99%

Super Stable Pollution Gas Sensor Based on Functionalized 2D Boron Nitride Nanosheet Materials for High Humidity Environments

2018

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“…Shao et al developed a chemoresistive gas sensor based on Zn 2+ doped molybdenum disulfide (Zn:MoS 2 ) . Zn:MoS 2 ultrathin nanosheets (UNs) were synthesized by the hydrothermal method using ammonium molybdate tetrahydrate, thiourea, and zinc acetate [Zn(CH 3 COOH) 2 ·2H 2 O] as precursors.…”

Section: Chemoresistive Materials For E‐nosementioning

confidence: 99%

“…C, Sensing responses of the sensor array based on Zn:MoS 2 UNs for five analytes. D, Principal component analysis (PCA) result showing the classifications based on the response of sensor array to seven analytes (Reproduced with the permission of Reference . Copyright Elsevier, 2018)…”

Section: Chemoresistive Materials For E‐nosementioning

confidence: 99%

“…Shao et al developed a chemoresistive gas sensor based on Zn 2+ doped molybdenum disulfide (Zn:MoS 2 ). 134 Zn:MoS 2 ultrathin nanosheets (UNs) were synthesized by the hydrothermal method using ammonium molybdate tetrahydrate, thiourea, and zinc acetate [Zn(CH 3 COOH) 2 Á2H 2 O] as F I G U R E 1 5 A, Optical image of Karlsruher Mikronase (KAMINA) chip with a self-assembled graphene nanoribbon (GNR) film deposited on the multielectrode. B, Scanning electron microscope (SEM) image of the random GNR film segments on the multielectrode structure.…”

Section: Two-dimensional Materialsmentioning

confidence: 99%

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Chemoresistive materials for electronic nose: Progress, perspectives, and challenges

Park

Kim

et al. 2019

InfoMat

145

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An electronic nose (e‐nose) is a device that can detect and recognize odors and flavors using a sensor array. It has received considerable interest in the past decade because it is required in several areas such as health care, environmental monitoring, industrial applications, automobile, food storage, and military. However, there are still obstacles in developing a portable e‐nose that can be used for a wide variety of applications. For practical applications of an e‐nose, it is necessary to collect a massive amount of data from various sensing materials that can transduce interactions with molecules reliably and analyze them via pattern recognition. In addition, the possibility of miniaturizing the e‐nose and operating it with low power consumption should be considered. Moreover, it should work efficiently over a long period of time. To satisfy these requirements, several different chemoresistive material platforms including metal oxides, organics such as polymers and carbon‐based materials, and two‐dimensional materials were investigated as sensor elements for an e‐nose. As an individual material has limited selectivity, there is a continuing effort to improve the selectivity and gas sensing properties through surface decoration and compositional and structural variations. To produce a reliable e‐nose, which can be used for practical applications, researches in various fields have to be harmonized. This paper reviews the progress of research on e‐noses based on a chemoresistive gas sensor array and discusses the inherent challenges and potential solutions.

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“…According to theoretical calculations, MoS 2 and WS 2 can be employed in all‐optical NO 2 sensors . Recently, 20–50 ppb limits of detection (LOD) were experimentally achieved for resistive disulfide‐based NO 2 sensors . These LODs are still higher with respect to other layered materials, for example, graphene metal‐oxide nanosheets .…”

Section: Introductionmentioning

confidence: 99%

Gold Decoration and Photoresistive Response to Nitrogen Dioxide of WS₂ Nanotubes

Polyakov

Козлов

Лебедев

et al. 2018

Chemistry A European J

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Composites of WS2 nanotubes (NT‐WS2) and gold nanoparticles (AuNPs) were prepared using aqueous HAuCl4 solutions and subjected to surface analysis. The obtained materials were jointly characterized by X‐ray photoelectron (XPS), Raman scattering (RSS), and ultraviolet photoelectron (UPS) spectroscopies. Optical extinction spectroscopy and electron energy loss spectroscopy in the scanning transmission electron microscopy regime (STEM‐EELS) were also employed to study plasmon features of the nanocomposite. It was found that AuNPs deposition is accompanied by a partial oxidative dissolution of WS2, whereas Au‐S interfacial species could be responsible for the tight contact of metal nanoparticles and the disulfide. A remarkable sensitivity of n‐type resistance of NT‐WS2 and Au‐NT‐WS2 to the adsorption of NO2 gas was also demonstrated at room temperature using periodical illumination by a 530 nm light‐emitting diode. Au‐NT‐WS2 nanocomposites are found to possess a higher photoresponse and enhanced sensitivity in the 0.25–2.0 ppm range of NO2 concentration, as compared to the pristine NT‐WS2. This behaviour is discussed within the physisorption‐charge transfer model to explore sensing properties of the nanocomposites.

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Discriminative and rapid detection of ozone realized by sensor array of Zn2+ doping tailored MoS2 ultrathin nanosheets

Cited by 52 publications

References 52 publications

Super Stable Pollution Gas Sensor Based on Functionalized 2D Boron Nitride Nanosheet Materials for High Humidity Environments

Super Stable Pollution Gas Sensor Based on Functionalized 2D Boron Nitride Nanosheet Materials for High Humidity Environments

Chemoresistive materials for electronic nose: Progress, perspectives, and challenges

Gold Decoration and Photoresistive Response to Nitrogen Dioxide of WS₂ Nanotubes

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Discriminative and rapid detection of ozone realized by sensor array of Zn2+ doping tailored MoS2 ultrathin nanosheets

Cited by 52 publications

References 52 publications

Super Stable Pollution Gas Sensor Based on Functionalized 2D Boron Nitride Nanosheet Materials for High Humidity Environments

Super Stable Pollution Gas Sensor Based on Functionalized 2D Boron Nitride Nanosheet Materials for High Humidity Environments

Chemoresistive materials for electronic nose: Progress, perspectives, and challenges

Gold Decoration and Photoresistive Response to Nitrogen Dioxide of WS2 Nanotubes

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Product

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Gold Decoration and Photoresistive Response to Nitrogen Dioxide of WS₂ Nanotubes