Enhanced LPG sensing property of sol–gel synthesized ZnO nanoparticles-based gas sensors

Muthuvinayagam, A.; Dhara, Soumen

doi:10.1007/s12034-021-02455-w

Cited by 7 publications

(3 citation statements)

References 32 publications

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“…The growth in home and vehicle liquefied petroleum gas (LPG) pipeline systems has increased leakage risk, which has induced the public and scientific community to search for better leakage-detection devices [2]. Hazardous gases and different volatile liquids used in industry, and all gases leaked to the environment, need continuous monitoring.…”

Section: Discussionmentioning

confidence: 99%

“…The number of accidents is higher in countries where liquefied petroleum gas (LPG) is supplied to homes via a pipeline network. Hence, development of a low-cost and efficient LPG sensor is important for saving homes [2].…”

Section: Introductionmentioning

confidence: 99%

“…Nanomaterials are anticipated to perform crucial role in enhancing gas sensing, due to their Processes 2022, 10, 2012 2 of 11 large surfaces, which enhance the adsorption phenomenon. The most vital operational parameters of gas sensors are response time, selectivity, sensitivity, and stability [7], in addition to bias voltage, operating temperature, and recovery time, which are important for long-term operation [2].…”

Section: Introductionmentioning

confidence: 99%

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Enhancing the Liquefied Petroleum Gas Sensing Sensitivity of Mn-Ferrite with Vanadium Doping

et al. 2022

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Mn-Ferrite with a nanostructure is a highly valuable material in various technological fields, such as electronics, catalysis, and sensors. The proposed article presents the hydrothermal synthesis of Mn-ferrite doped with V (V) ions. The range of the doping level was from 0.0 to x to 0.20. The fluctuation in tetrahedral and octahedral site occupancies with Fe (III), Mn (II), and V (V) ions was coupled to the variation in unit cell dimensions, saturation magnetization, and LPG sensing sensitivity. The total magnetic moment shows a slow decrease with V-doping up to x = 0.1 (Ms = 51.034 emu/g), then sharply decreases with x = 0.2 (Ms = 34.789 emu/g). The dimension of the unit cell increases as x goes up to x = 0.1, then lowers to x = 0.2. As the level of V (V) ion substitution increases, the microstrain (ε) also begins to rise. The ε of a pure MnFe2O4 sample is 3.4 × 10−5, whereas for MnFe2-1.67 xVxO4 (x = 0.2) it increases to 28.5 × 10−5. The differential in ionic sizes between V (V) and Fe (III) and the generation of cation vacancies contribute to the increase in ε. The latter is created when a V (V) ion replaces 1.6 Fe (III) ions. V-doped MnFe2O4 displays improved gas-sensing ability compared to MnFe2O4 at lower operating temperature. The maximum sensing efficiency was observed for 2 wt% V-doped MnFe2O4 at a 200 °C optimum operating temperature.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%