Zinc peroxide combustion promoter in preparation of CuO layers for conductometric CO2 sensing

Tanvir, N.B.; Yurchenko, Olena; Laubender, E.; Pohle, Roland; Sicard, Oliver von; Urban, G.

doi:10.1016/j.snb.2017.11.055

Cited by 27 publications

(13 citation statements)

References 37 publications

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“…The best results were obtained at 50 °C and 45% RH. In both cases, [57] and [76], the highest responses were measured for humidified samples. It was suggested that the presence of humidity and adsorbed water is necessary to achieve the reversible reaction of CO2 with the CuO sensing layer.…”

Section: Carbon Oxidesmentioning

confidence: 96%

“…The sensors were measured under the same conditions as previously, i.e., CO 2 in the 400-4000 ppm range, RH concentrations: 0%, 30%, 45%, 60% and 80%; however, the operating temperature was lower, i.e., 20-110 • C. The best results were obtained at 50 • C and 45% RH. In both cases, [57] and [76], the highest responses were measured for humidified samples. It was suggested that the presence of humidity and adsorbed water is necessary to achieve the reversible reaction of CO 2 with the CuO sensing layer.…”

Section: Ethanol (C2h5oh)mentioning

confidence: 96%

“…It is widely used as a solvent and preservative in pharmaceutical preparations, as well as serving as Carbon dioxide is considered to be a hazardous gas in the atmosphere, whose continuous increase in concentration can lead to adverse effects on human life and the overall environment [75]. The detection of CO 2 by utilization of CuO thin film gas sensors was recently presented by Tanvir et al [57,76]. In [76], the authors presented investigation results of a gas-sensitive layer based on the combination of CuO nanoparticles with an organic binder and zinc peroxide: ZnO 2 .…”

Section: Ethanol (C2h5oh)mentioning

confidence: 99%

“…The detection of CO 2 by utilization of CuO thin film gas sensors was recently presented by Tanvir et al [57,76]. In [76], the authors presented investigation results of a gas-sensitive layer based on the combination of CuO nanoparticles with an organic binder and zinc peroxide: ZnO 2 . The developed layers were investigated in the 20-600 • C temperature range, at various relative humidity (RH) concentrations, such as 0%, 30%, 60%, and 80%, and in 400-4000 ppm concentration range (with 1000 ppm steps) of CO 2 .…”

Section: Ethanol (C2h5oh)mentioning

confidence: 99%

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

Rydosz

2018

Coatings

115

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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: Carbon Oxidesmentioning

confidence: 96%

Section: Ethanol (C2h5oh)mentioning

confidence: 96%

Section: Ethanol (C2h5oh)mentioning

confidence: 99%

Section: Ethanol (C2h5oh)mentioning

confidence: 99%

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

Rydosz

2018

Coatings

115

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“…The response of QCM-based gas sensors greatly depends on the sensing material coated on their electrodes. Various pristine and hybrid materials, such as SnO 2 [ 7 ], Au-La 2 O 3 doped SnO 2 [ 8 ], ZnO [ 9 ], ZnO-CuO [ 10 ], BaTiO 3 –CuO [ 11 ], and molybdenum-tungsten oxide [ 12 ] materials, have been investigated as sensing material for the detection of CO 2 gas. However, these materials require a very high temperature (200–600 °C) during gas sensing.…”

Section: Introductionmentioning

confidence: 99%

Functionalized Reduced Graphene Oxide Thin Films for Ultrahigh CO2 Gas Sensing Performance at Room Temperature

et al. 2021

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The demand for carbon dioxide (CO2) gas detection is increasing nowadays. However, its fast detection at room temperature (RT) is a major challenge. Graphene is found to be the most promising sensing material for RT detection, owing to its high surface area and electrical conductivity. In this work, we report a highly edge functionalized chemically synthesized reduced graphene oxide (rGO) thin films to achieve fast sensing response for CO2 gas at room temperature. The high amount of edge functional groups is prominent for the sorption of CO2 molecules. Initially, rGO is synthesized by reduction of GO using ascorbic acid (AA) as a reducing agent. Three different concentrations of rGO are prepared using three AA concentrations (25, 50, and 100 mg) to optimize the material properties such as functional groups and conductivity. Thin films of three different AA reduced rGO suspensions (AArGO25, AArGO50, AArGO100) are developed and later analyzed using standard FTIR, XRD, Raman, XPS, TEM, SEM, and four-point probe measurement techniques. We find that the highest edge functionality is achieved by the AArGO25 sample with a conductivity of ~1389 S/cm. The functionalized AArGO25 gas sensor shows recordable high sensing properties (response and recovery time) with good repeatability for CO2 at room temperature at 500 ppm and 50 ppm. Short response and recovery time of ~26 s and ~10 s, respectively, are achieved for 500 ppm CO2 gas with the sensitivity of ~50 Hz/µg. We believe that a highly functionalized AArGO CO2 gas sensor could be applicable for enhanced oil recovery, industrial and domestic safety applications.

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