Detection and determination of harmful gases in confined spaces for the Internet of Things based on cataluminescence sensor

Shi, Guolong; He, Yigang; Zhang, Yongxing; Yin, Baiqiang; Ali, Farhan

doi:10.1016/j.snb.2019.126686

Cited by 26 publications

(21 citation statements)

References 41 publications

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“…Cataluminescence (CTL), a kind of luminescence emitted from heterogeneous catalytic oxidation reactions on gas‐solid interface, is a promising technology for making gas sensors . In recent years, a series of CTL analytical applications have been attempted to develop for sulfur dioxide and other molecules at different laboratories.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Working Conditions by Response Surface Methodology of Sulfur Dioxide Gas Sensors Based on Au/CoO‐2La₂WO₆ Nanoparticles

et al. 2020

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In the past, the working conditions of cataluminescence (CTL) method were simply determined by single factor experiment. This paper will illustrate the optimization of working conditions of a novel sulfur dioxide gas sensor based on Au/CoO-2La 2 WO 6 nanoparticles by response surface methodology (RSM). Under optimized working conditions, analytical wavelength 522.77 nm, reaction temperature 111.15°C and carrier gas velocity 144.92 ml/min, the sensitivity of the method can be increased by 6.4 %. The optimization process is universal for many multi parameter processes. There is a good linear relationship between the CTL intensity and the concentration of sulfur dioxide in the range of 0.06-120 mg/m 3 with a detection limit (3σ) of 0.015 mg/m 3. The sensing properties of sensitive material were investigated. The results indicated that nano-Au/CoO-2La 2 WO 6 could be a good candidate for fabricating sulfur dioxide gas sensors.

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Section: Introductionmentioning

confidence: 99%

“…Our previous work has proposed that CTL baseline instability will occur in a small heat capacity system when the working temperature exceeds 200 °C . In some existing literatures, the working temperature of CTL‐based analytical methods was much higher than 200 °C. They are not suitable for making CTL gas sensors.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Working Conditions by Response Surface Methodology of Sulfur Dioxide Gas Sensors Based on Au/CoO‐2La₂WO₆ Nanoparticles

et al. 2020

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“…In recent years, there has been a growing interest in the design of gas sensors based on cataluminescence (CTL) for VOCs monitoring, mainly due to CTL-based gas sensors' many advantages such as low cost, simplicity, high sensitivity and excellent stability. CTL was first reported in 1976 by Breysse et al [17]; it is a specific kind of chemiluminescence (CL) that is emitted by the catalytic oxidation on the surface of solid catalysts [18][19][20]. In 2002, Zhang's group first introduced nanomaterial into the design of CTL-based sensors.…”

Section: Introductionmentioning

confidence: 99%

A Cataluminescence Sensor Based on NiO Nanoparticles for Sensitive Detection of Acetaldehyde

Zhang

Wang

et al. 2020

Molecules

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Sensitive and selective detection of harmful gas is an important task in environmental monitoring. In this work, a gas sensor based on cataluminescence (CTL) for detection of acetaldehyde was designed by using nano-NiO as the sensing material. The sensor shows sensitive response to acetaldehyde at a relatively low working temperature of 200 °C. The linear range of CTL intensity versus acetaldehyde concentration is 0.02–2.5 mg/L, with a limit of detection of 0.006 mg/L at a signal-to-noise ratio of three. Mechanism study shows that electronically excited CO2 is the excited intermediate for CTL emission during the catalytic oxidation of acetaldehyde on the NiO surface. The proposed sensor has promising application in monitoring acetaldehyde in residential buildings and in the workplace.

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“…CTL, a kind of chemiluminescence (CL) emitted from heterogeneous catalytic oxidation reactions on gas-solid interface, has been considered as a promising energy transduction mechanism for fabricating gas sensors [4]. In recent years, a series of CTL sensing applications have been attempted to develop for diethyl ether [5][6][7][8][9][10][11][12][13][14] and many other molecules [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] at different laboratories. When using the composites to make diethyl ether gas sensor, high working temperature becomes a main obstacle.…”

Section: Introductionmentioning

confidence: 99%

Preparation and performance of sensing material for diethyl ether: Optimization of working conditions by response surface methodology

Zhang¹,

Yang²,

Wang³

et al. 2020

Preprint

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Pd doped ZnNi3Al2O7 composite was synthesized by sol-gel and impregnation method. The EDS spectrum and TEM image showed that Pd atoms are uniformly distributed on the surface of ZnNi3Al2O7 with a particle size of less than 50 nm. A sensitive diethyl ether gas sensor based on cataluminescence on the composite at lower temperature than 200℃ was reported. There is a good linear relationship between the luminescence intensity and the concentration of diethyl ether in the range of 0.1-75 mg/m3. The detection limit (3σ) is 0.06 mg/m3. The working conditions optimized by response surface methodology were analytical wavelength of 548.86 nm, reaction temperature of 109.18℃ and carrier gas velocity of 125.88 ml/min, respectively. The sensitivity of the method can be increased by 4.5% under the optimized working conditions. The optimization method is universal for many multi parameter processes.

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Detection and determination of harmful gases in confined spaces for the Internet of Things based on cataluminescence sensor

Cited by 26 publications

References 41 publications

Optimization of Working Conditions by Response Surface Methodology of Sulfur Dioxide Gas Sensors Based on Au/CoO‐2La₂WO₆ Nanoparticles

Optimization of Working Conditions by Response Surface Methodology of Sulfur Dioxide Gas Sensors Based on Au/CoO‐2La₂WO₆ Nanoparticles

A Cataluminescence Sensor Based on NiO Nanoparticles for Sensitive Detection of Acetaldehyde

Preparation and performance of sensing material for diethyl ether: Optimization of working conditions by response surface methodology

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Detection and determination of harmful gases in confined spaces for the Internet of Things based on cataluminescence sensor

Cited by 26 publications

References 41 publications

Optimization of Working Conditions by Response Surface Methodology of Sulfur Dioxide Gas Sensors Based on Au/CoO‐2La2WO6 Nanoparticles

Optimization of Working Conditions by Response Surface Methodology of Sulfur Dioxide Gas Sensors Based on Au/CoO‐2La2WO6 Nanoparticles

A Cataluminescence Sensor Based on NiO Nanoparticles for Sensitive Detection of Acetaldehyde

Preparation and performance of sensing material for diethyl ether: Optimization of working conditions by response surface methodology

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Optimization of Working Conditions by Response Surface Methodology of Sulfur Dioxide Gas Sensors Based on Au/CoO‐2La₂WO₆ Nanoparticles

Optimization of Working Conditions by Response Surface Methodology of Sulfur Dioxide Gas Sensors Based on Au/CoO‐2La₂WO₆ Nanoparticles