Synthesis of MnSb2O6 powders through a simple low-temperature method and their test as a gas sensor

Zamora, Antonio Casillas; Bonilla, José Trinidad Guillen; Guillén-Bonilla, Alex; Rodríguez-Betancourtt, M.; Casallas-Moreno, Y.L.; Gildo-Ortiz, Lorenzo; Olvera, M. de la L.; Tomás, S.A.; Guillén-Bonilla, Héctor

doi:10.1007/s10854-019-02700-3

Cited by 11 publications

(19 citation statements)

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“…Therefore, the presence of ethylenediamine determines the geometric features of the formed nuclei, which grow during the heat treatments [ 5 ]. We also have reported in previous works that by using ethylenediamine during the synthesis process, it is possible to obtain different types of morphologies [ 5 , 36 , 37 , 38 ], like microrods, nanorods, microspheres, microoctahedra, and nanoparticles, which have been successfully proved as potential gas sensors for the detection of CO, CO 2 , and C 3 H 8 atmospheres [ 39 ]. Additionally, other authors, such as Michel et al [ 40 ], used ethylenediamine for the synthesis of the semiconductor oxide CoSb 2 O 6 in order to obtain nanoparticles to be applied in the detection of CO 2 and O 2 .…”

Section: Resultsmentioning

confidence: 99%

“…In the TEM images, dark areas are observed that are attributed to the poor transmission of electrons caused by the agglomeration of nanoparticles on the material’s surface. It is mentioned in the literature that, when using ethylenediamine during the synthesis process, particle agglomeration occurs, where the thermal treatment (in our case at 300 °C) plays a key role in obtaining agglomerated areas of nanoparticles, as shown in Figure 7 a–d [ 37 , 39 ]. In a more detailed study of the TEM images, we corroborated our SEM analysis where the rod growth and nucleation are observed, as well as other nanoparticles with no apparent shape ( Figure 7 a).…”

Section: Resultsmentioning

confidence: 99%

“…This behavior is attributed to the fact that the relatively low-temperature is not enough for the reaction of the pellets’ surface and the test gas. This caused that at 100 °C, oxygen desorption did not occur [ 38 , 39 ] and, therefore, a low response of the material. Some authors also observed the poor response that shows some semiconductors at low temperatures (in our case at 100 °C), such as ours.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis of ZnAl2O4 and Evaluation of the Response in Propane Atmospheres of Pellets and Thick Films Manufactured with Powders of the Oxide

Huízar-Padilla

Guillén-Bonilla

et al. 2021

Sensors

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ZnAl2O4 nanoparticles were synthesized employing a colloidal method. The oxide powders were obtained at 300 °C, and their crystalline phase was corroborated by X-ray diffraction. The composition and chemical structure of the ZnAl2O4 was carried out by X-ray and photoelectron spectroscopy (XPS). The optical properties were studied by UV-vis spectroscopy, confirming that the ZnAl2O4 nanoparticles had a direct transition with bandgap energy of 3.2 eV. The oxide’s microstructures were microbars of ~18.2 nm in size (on average), as analyzed by scanning (SEM) and transmission (TEM) electron microscopies. Dynamic and stationary gas detection tests were performed in controlled propane atmospheres, obtaining variations concerning the concentration of the test gas and the operating temperature. The optimum temperatures for detecting propane concentrations were 200 and 300 °C. In the static test results, the ZnAl2O4 showed increases in propane response since changes in the material’s electrical conductance were recorded (conductance = 1/electrical resistance, Ω). The increases were ~2.8 at 200 °C and ~7.8 at 300 °C. The yield shown by the ZnAl2O4 nanoparticles for detecting propane concentrations was optimal compared to other similar oxides categorized as potential gas sensors.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Synthesis of ZnAl2O4 and Evaluation of the Response in Propane Atmospheres of Pellets and Thick Films Manufactured with Powders of the Oxide

Huízar-Padilla

Guillén-Bonilla

et al. 2021

Sensors

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“…Using the results of Figure 2a, we calculated the sensitivity of the pellets with the formula 𝑆 = (𝑅 -𝑅 )/𝑅 , where 𝑅 is the electrical resistance in extra dry air and 𝑅 is the electrical resistance in propane. By considering the reciprocal of the electrical resistance (1/electrical resistance), we calculate [1,23]: 𝑆 = (𝐺 -𝐺 )/𝐺 , where 𝐺 and 𝐺 are the propane and air conductances, respectively.…”

Section: Analysis Of the Dynamic Response Of The Znal2o4mentioning

confidence: 99%

Electrical Response of the Spinel ZnAl2O4 and Its Application in the Detection of Propane Gas

Guillén-Bonilla

Bonilla

Rodríguez-Betancourtt

et al. 2021

Applied Sciences

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Nanoparticles of the semiconductor ZnAl2O4 were prepared using a microwave-assisted wet chemistry method in the presence of ethylenediamine and calcination at 250 °C. The material’s crystallinity and purity were verified by X-ray diffraction. The pure phase of the ZnAl2O4 presented a cubic crystalline structure with cell parameters a = 8.087 Å and space group Fd-3m (227). Dynamic tests in propane atmospheres were carried out on pellets (~500 µm in diameter) manufactured with ZnAl2O4 powders. In the tests, the oxide showed variations with time in electrical resistance when injecting air-propane at an operating temperature of 250 °C. The pellets showed good stability, high sensitivity, and an optimal dynamic response as a function of time. On the other hand, a mathematical model was proposed to describe the chemical sensor’s dynamic behavior based on the electrical response and linear systems theory. The sensor’s transient response was obtained with the model by exposing the oxide to air and propane gas; its stability was checked, and the stabilization time was calculated. Subsequently, an operating point was selected, and, with it, a propane gas detector was designed. The sensor operated flawlessly at 250 °C at a concentration of 1000 ppm, with a response time of three seconds. The developed device is inexpensive and easy to implement.

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“…The solid state gas sensor, one of the solid state electronic devices, has attacted attention due to its high sensitivity, high selectivity, low-cost, and small size. Although metal oxide semiconductors gas sensors, which are commonly used in the detection of CO and NH 3 gases, bene t from high metarial sensitivity and quick response time, they generally operate at high temperatures (200-300 0 C) [8][9][10][11][12][13][14][15]. Recently, researchers have focused on improving the operation conditions of gas sensors in terms of low-level CO detection at room temperature [16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

β12 Phase Borophene Enhanced PANI Gas Sensor for CO and NH3 Detection

Taşaltın¹,

Taşaltın²,

Baytemir³

et al. 2021

Preprint

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In cases where the carbon monoxide concentration reaches to 50 ppm, and ammonia concentration reaches to 25 ppm in indoor ambient, the symptoms such as lung failure, heart failure, brain damage are present, and urgent medical attention is required. Therefore, the development of a rapid and sensitive sensor in order to detect the level of CO and NH3 gases is the critical issue for health and the environment. In this study, borophene nanosheets with the β12 phased crystalline structure are produced by ultrasonic sonication. Using borophene nanosheets, Borophene and PANI: Borophene sensors are fabricated to investigate the CO and NH3 gas detection at room temperature. It has been observed that borophene enhances the CO and NH3 gas detection performance of PANI. The results reveal that borophene sensor detected 6 ppm CO gas with 30 s response time and 40 s recovery time, and 50 ppb NH3 gas with 40 s response time and 60 s recovery time at room temperature. On the other hand, PANI: Borophene sensor detected 6 ppm CO gas with 300 s response time and 320 s recovery time and 50 ppb NH3 gas with 100 s response time and 120 s recovery time at room temperature.

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Synthesis of MnSb2O6 powders through a simple low-temperature method and their test as a gas sensor

Cited by 11 publications

References 71 publications

Synthesis of ZnAl2O4 and Evaluation of the Response in Propane Atmospheres of Pellets and Thick Films Manufactured with Powders of the Oxide

Synthesis of ZnAl2O4 and Evaluation of the Response in Propane Atmospheres of Pellets and Thick Films Manufactured with Powders of the Oxide

Electrical Response of the Spinel ZnAl2O4 and Its Application in the Detection of Propane Gas

β12 Phase Borophene Enhanced PANI Gas Sensor for CO and NH3 Detection

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