Lemon juice (natural fuel) assisted synthesis of MgO nanorods for LPG gas sensor applications

Poonguzhali, R.; Kumar, Е. Ranjith; Pushpagiri, T.; Steephen, Ananth; Arunadevi, N.; Baskoutas, Sotirios

doi:10.1016/j.ssc.2020.114161

Cited by 20 publications

(4 citation statements)

References 26 publications

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“…[8][9][10] Liquefied petroleum gas (LPG) is a highly explosive gas that is widely used in domestic and industries and it is very harmful to the human being as well as the environment. 11 One of the combustible and dangerous gases frequently utilized in homes and businesses is LPG. Therefore, we must create an LPG sensor that responds rapidly, is extremely discriminating, and operates at low temperatures.…”

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MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

2022

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An MnO2-SnO2 nanocomposite-based sensing device with below lower exposure limit (0.5-2.0 vol%) for liquefied petroleum gas (LPG) is reported. The synthesized material is highly crystalline with an average crystallite size of 16.786 nm, confirmed by the X-ray diffraction (XRD). A Williamson-Hall plot shows that induced strain of 2.627×10-4, present in the nanocomposite, lies between the induced strains of both of its constituents. The XRD pattern of nanocomposite contains cubic phase of MnO2 and the tetragonal phase of SnO2. Tauc plot shows the optical energy band gap of MnO2, SnO2, and MnO2-SnO2 of 3.407, 3.037, and 3.202 eV, respectively. The surface morphological investigation shows the brush-like structure which enhances sensor performance by providing activation sites. The energy dispersive X-ray spectrum found that materials are highly pure because other peaks are not observed. The functional group analysis by Fourier transform infrared spectroscopy found that Sn-O and Mn-O both vibration bands existed. The highest sensor response was found to be 2.42 for 2.0 vol% whereas for a lower concentration of 0.5 vol% the sensor response was observed to 1.44. The fast response and recovery of this sensing device were found to17.30 and 23.25 s, respectively, for 0.5 vol% of LPG.

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MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

2022

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“…These properties recommend MgO for a wide range of applications in which its antibacterial [8], antimicrobial [9] and photo-catalytic properties [3,10] could be used. Moreover, MgO can be used for photovoltaic devices [11,12] and gas sensor applications [13].…”

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Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications

et al. 2021

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Magnesium oxide (MgO) thin films with different magnesium concentrations ([Mg2+] = 0.05, 0.1, 0.15 and 0.2 mol·L−1) in a spray solution have been successfully grown using a spray pyrolysis technique. X-ray diffraction (XRD), Maud software, FTIR spectroscopy, a confocal microscope, Wien2k software, spectrophotometry and a Photoluminescence spectrometer were used to investigate the structural, morphological and optical properties. XRD analysis revealed a better crystalline quality of the MgO thin layer synthesized with [Mg2+] = 0.15 mol·L−1, which crystallized into a face-centered cubic structure along the preferred orientation (200) lattice plan. The enhancement of the crystalline quality for the MgO thin film ([Mg2+] = 0.15 mol·L−1) was obtained, which was accompanied by an increment of 94.3 nm of the crystallite size. No secondary phase was detected and the purity phase of the MgO thin film was confirmed using Maud software. From the transmission spectra results, high transparent and antireflective properties of the MgO thin film were observed, with an average transmission value of about 91.48% in the visible range, which can be used as an optical window or buffer layer in solar cell applications. The films also have a high reflectance value in the IR range, which indicates that the highly reflective surface will prevent an increase in surface temperature under solar irradiation, which could be beneficial in solar cell applications. A direct band gap type was estimated using the Tauc relation which is close to the experimental value of 4.0 eV for optimal growth. The MgO material was tested for the degradation of methylene blue (MB), which reached a high photodegradation rate of about 83% after 180 min under sunlight illumination. These experimental trends open a new door for promising the removal of water contaminants for photocatalysis application.

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“…There is increasing demand for accurate and fast gas sensing system for applications ranging from environmental screening to space exploration. [1][2][3][4][5][6][7][8][9][10][11][12][13] Rational materials choice, simpler fabrication techniques and modern data analysis have enabled electronic gas sensors to be deployed in sophisticated and hazardous environments. [14][15][16][17][18] There exist different types of gas sensors, which uses different transduction principles to detect specific gases.…”

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Review–Modern Data Analysis in Gas Sensors

Sagar

Allison

Jalajamony

et al. 2022

J. Electrochem. Soc.

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Development in the field of gas sensors has witnessed exponential growth with a multitude of applications. The diversity of the applications has led to unexpected challenges. Recent advances in data science have addressed the challenges such as selectivity, drift, aging, limit of detection, and response time. The incorporation of modern data analysis including machine learning techniques have enabled a self-sustaining gas-sensing infrastructure without human intervention. This article provides a birds-eye view on data enabled technologies in the realm of gas sensors. While elaborating the prior developments in gas-sensing related data analysis, this article is intended as an entrant for enthusiasts in the domain of data science and gas sensors.

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Lemon juice (natural fuel) assisted synthesis of MgO nanorods for LPG gas sensor applications

Cited by 20 publications

References 26 publications

MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications

Review–Modern Data Analysis in Gas Sensors

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Lemon juice (natural fuel) assisted synthesis of MgO nanorods for LPG gas sensor applications

Cited by 20 publications

References 26 publications

MnO2-SnO2 Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

MnO2-SnO2 Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications

Review–Modern Data Analysis in Gas Sensors

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Product

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MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration

MnO₂-SnO₂ Based Liquefied Petroleum Gas Sensing Device for Lowest Explosion Limit Gas Concentration