Self-template derived CuO nanowires assembled microspheres and its gas sensing properties

Tan, Jianfeng; Dun, Menghan; Li, Long; Zhao, Jingya; Li, Xiu; Hu, YongȐSheng; Huang, Gui Chao; Tan, Wenhu; Huang, Xintang

doi:10.1016/j.snb.2017.05.107

Cited by 66 publications

(22 citation statements)

References 43 publications

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“…The highest response (R g /R a ) was obtained for n-propanol; however, the sensor had some cross-sensitivity to other VOCs, such as: methanol, ethanol, and acetone. The long-term stability test verified the possibility to use the sensor for long periods of time, which is crucial for market applications [81]. Reprinted with permission from [47].…”

Section: Isopropanol (C 3 H 6 O)mentioning

confidence: 80%

“…In addition to the detection of isopropanol, CuO-based sensors are also used to detect n-propanol ((CH 3 ) 2 CHOH). Tan et al [81] presented CuO nanowire assembled microspheres (CuO NMs) with an extremely fast response time to n-propanol. The optimal temperature was set to 190 • C, and the response/recovery times were 1.2/6.6 s for 100 ppm and 2.7/1.2 s for 1 ppm, respectively.…”

Section: Isopropanol (C 3 H 6 O)mentioning

confidence: 99%

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The Use of Copper Oxide Thin Films in Gas-Sensing Applications

Rydosz

2018

Coatings

107

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In this work, the latest achievements in the field of copper oxide thin film gas sensors are presented and discussed. Several methods and deposition techniques are shown with their advantages and disadvantages for commercial applications. Recently, CuO thin film gas sensors have been studied to detect various compounds, such as: nitrogen oxides, carbon oxides, hydrogen sulfide, ammonia, as well as several volatile organic compounds in many different applications, e.g., agriculture. The CuO thin film gas sensors exhibited high 3-S parameters (sensitivity, selectivity, and stability). Furthermore, the possibility to function at room temperature with long-term stability was proven as well, which makes this material very attractive in gas-sensing applications, including exhaled breath analysis.

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Section: Isopropanol (C 3 H 6 O)mentioning

confidence: 80%

Section: Isopropanol (C 3 H 6 O)mentioning

confidence: 99%

The Use of Copper Oxide Thin Films in Gas-Sensing Applications

Rydosz

2018

Coatings

107

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“…The different lowest unoccupied molecule orbit (LUMO) energy for various target gas molecules leads to different responses. Moreover, the selectivity toward ethanol gas could be ascribed to the strong interaction between the ethanol molecules and the surface of NFO-8 NSFs at 120 °C [ 36 ]. Our material can be used as part of a sensor array to provide a response pattern.…”

Section: Resultsmentioning

confidence: 99%

Surface Structure Engineering of Nanosheet-Assembled NiFe2O4 Fluffy Flowers for Gas Sensing

Zhang

Wang

et al. 2021

Nanomaterials

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In this work, we present a strategy to improve the gas-sensing performance of NiFe2O4 via a controllable annealing Ni/Fe precursor to fluffy NiFe2O4 nanosheet flowers. X-ray diffraction (XRD), a scanning electron microscope (SEM), nitrogen adsorption–desorption measurements and X-ray photoelectron spectroscopy (XPS) were used to characterize the crystal structure, morphology, specific surface area and surface structure. The gas-sensing performance was tested and the results demonstrate that the response was strongly influenced by the specific surface area and surface structure. The resultant NiFe2O4 nanosheet flowers with a heating rate of 8 °C min−1, which have a fluffier morphology and more oxygen vacancies in the surface, exhibited enhanced response and shortened response time toward ethanol. The easy approach facilitates the mass production of gas sensors based on bimetallic ferrites with high sensing performance via controlling the morphology and surface structure.

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“…In particular, CuO nanomaterials have optical, electrical, magnetic, and catalytic properties, which have great application potential as catalytic, photothermal photoconductive materials, field emitters, gas sensors, etc. [17,18,19].…”

Section: Introductionmentioning

confidence: 99%

Single-Crystalline Metal Oxide Nanostructures Synthesized by Plasma-Enhanced Thermal Oxidation

Guo

Košiček

et al. 2019

Nanomaterials

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To unravel the influence of the temperature and plasma species on the growth of single-crystalline metal oxide nanostructures, zinc, iron, and copper foils were used as substrates for the study of nanostructure synthesis in the glow discharge of the mixture of oxygen and argon gases by a custom-made plasma-enhanced horizontal tube furnace deposition system. The morphology and microstructure of the resulting metal oxide nanomaterials were controlled by changing the reaction temperature from 300 to 600 °C. Experimentally, we confirmed that single-crystalline zinc oxide, copper oxide, and iron oxide nanostructures with tunable morphologies (including nanowires, nanobelts, etc.) can be successfully synthesized via such procedure. A plausible growth mechanism for the synthesis of metal oxide nanostructures under the plasma-based process is proposed and supported by the nanostructure growth modelling. The results of this work are generic, confirmed on three different types of materials, and can be applied for the synthesis of a broader range of metal oxide nanostructures.

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Self-template derived CuO nanowires assembled microspheres and its gas sensing properties

Cited by 66 publications

References 43 publications

The Use of Copper Oxide Thin Films in Gas-Sensing Applications

The Use of Copper Oxide Thin Films in Gas-Sensing Applications

Surface Structure Engineering of Nanosheet-Assembled NiFe2O4 Fluffy Flowers for Gas Sensing

Single-Crystalline Metal Oxide Nanostructures Synthesized by Plasma-Enhanced Thermal Oxidation

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