Sensors, Vol. 24, Pages 2147: Synthesis and Sensing Response of Magnesium Antimoniate Oxide (MgSb2O6) in the Presence of Propane Atmospheres at Different Operating Voltages
Sensors, Vol. 24, Pages 2147: Synthesis and Sensing Response of Magnesium Antimoniate Oxide (MgSb2O6) in the Presence of Propane Atmospheres at Different Operating Voltages
Sensors doi: 10.3390/s24072147
Authors:
Héctor Guillén-Bonilla
José Trinidad Guillén-Bonilla
Verónica-María Rodríguez-Betancourtt
Jorge Alberto Ramírez-Ortega
Juan Pablo Morán Lázaro
Alex Guillén-Bonilla
Nanoparticles of MgSb2O6 were synthesized using a microwave-assisted wet chemistry method, followed by calcination at 700 °C. Their ability to detect different concentrations of propane gas (C3H8) at various operating voltages was evaluated. The material’s crystalline phase was identified using X-ray powder diffraction (XRD). The morphology was analyzed by scanning electron microscopy (SEM), finding bar- and polyhedron-type geometries. Through transmission electron microscopy (TEM), we found particle sizes of 8.87–99.85 nm with an average of ~27.63 nm. Employing ultraviolet–visible (UV-Vis) spectroscopy, we found a band gap value of ~3.86 eV. Thick films made with MgSb2O6 powders were exposed to atmospheres containing 150, 300, 400, and 600 ppm of propane gas for dynamic testing. The time-dependent sensitivities were ~61.09, ~88.80, ~97.65, and ~112.81%. In addition, tests were carried out at different operating voltages (5–50 V), finding very short response and recovery times (~57.25 and ~18.45 s, respectively...
Source: Sensors - Category: Biotechnology Authors: H éctor Guillén-Bonilla Jos é Trinidad Guillén-Bonilla Ver ónica-María Rodríguez-Betancourtt Jorge Alberto Ram írez-Ortega Juan Pablo Mor án Lázaro Alex Guill én-Bonilla Tags: Article Source Type: research
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