title: A Novel Gas Sensor Based on MgSb2O6 Nanorods to Indicate Variations in Carbon Monoxide and Propane Concentrations.
abstract: Bystromite (MgSb2O6) nanorods were prepared using a colloidal method in the presence of ethylenediamine, after a calcination step at 800 °C in static air. From X-ray powder diffraction analyses, a trirutile-type structure with lattice parameters a = 4.64 Å and c = 9.25 Å and space group P4₂/mnm was identified. Using scanning electron microscopy (SEM), microrods with sizes from 0.2 to 1.6 μm were observed. Transmission electron microscopy (TEM) analyses revealed that the nanorods had a length of ~86 nm and a diameter ~23.8 nm. The gas-sensing properties of these nanostructures were tested using pellets elaborated with powders of the MgSb2O6 oxide (calcined at 800 °C) at temperatures 23, 150, 200, 250 and 300 °C. The pellets were exposed to different concentrations of carbon monoxide (CO) and propane (C3H8) at these temperatures. The results showed that the MgSb2O6 nanorods possess excellent stability and high sensitivity in these atmospheres.
authors: Departamento de Ingeniería de Proyectos, CUCEI, Universidad de Guadalajara, 44410 Guadalajara, JAL, Mexico. hguillenbonilla@gmail.com.
authors: Héctor
authors: H
authors: Guillén-Bonilla
authors: Departamento de Ingeniería de Proyectos, CUCEI, Universidad de Guadalajara, 44410 Guadalajara, JAL, Mexico. doctorado.materiales@cucei.udg.mx.
authors: Martín
authors: M
authors: Flores-Martínez
authors: Departamento de Químicas, CUCEI, Universidad de Guadalajara, 44410 Guadalajara, JAL, Mexico. veronica.rodriguez@red.cucei.udg.mx.
authors: Verónica-María
authors: VM
authors: Rodríguez-Betancourtt
authors: Departamento de Ciencias Computacionales e Ingenierías, CUVALLES, Universidad de Guadalajara, Carretera Guadalajara-Ameca Km 45.5, 46600 Ameca, JAL, Mexico. alexguillenbonilla@gmail.com.
authors: Alex
authors: A
authors: Guillen-Bonilla
authors: Facultad de Ciencias, Universidad de Colima, 28045 Colima, COL, Mexico. reyesgj@ucol.mx.
authors: Juan
authors: J
authors: Reyes-Gómez
authors: Facultad de Ciencias, Universidad de Colima, 28045 Colima, COL, Mexico. lorenzo.gildo@gmail.com.|Nanociencias y Nanotecnología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, 07360 México, DF, Mexico. lorenzo.gildo@gmail.com.
authors: Lorenzo
authors: L
authors: Gildo-Ortiz
authors: Departamento de Ingeniería Eléctrica-SEES, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, 07360 México, DF, Mexico. molvera@cinvestav.mx.
authors: María
authors: M
authors: de la Luz Olvera Amador
authors: Departamento de Física, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, 07360 México, DF, Mexico. jsantoyo@fis.cinvestav.mx.
authors: Jaime
authors: J
authors: Santoyo-Salazar
keywords: carbon monoxide; nanorods; propane; sensitivity; trirutile