TY - JOUR
T1 - Sensitivity tests of pellets made from manganese antimonate nanoparticles in carbon monoxide and propane atmospheres
AU - Guillén-Bonilla, Héctor
AU - Rodríguez-Betancourtt, Verónica M.
AU - Guillen-Bonilla, José Trinidad
AU - Gildo-Ortiz, Lorenzo
AU - Guillen-Bonilla, Alex
AU - Casallas-Moreno, Y. L.
AU - Blanco-Alonso, Oscar
AU - Reyes-Gómez, Juan
N1 - Publisher Copyright:
© 2018 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2018/7/16
Y1 - 2018/7/16
N2 - Nanoparticles of manganese antimonate (MnSb2 O6) were prepared using the microwave-assisted colloidal method for its potential application as a gas sensor. For the synthesis of the oxide, manganese nitrate, antimony chloride, ethylenediamine and ethyl alcohol (as a solvent) were used. The precursor material was calcined at 800◦ C in air and analyzed by X-ray diffraction. The oxide crystallized into a hexagonal structure with spatial group P321 and cell parameters a = b = 8.8054 Å and c = 4.7229 Å. The microstructure of the material was analyzed by scanning electron microscopy (SEM), finding the growth of microrods with a size of around ~10.27 µm and some other particles with an average size of ~1.3 µm. Photoacoustic spectroscopy (PAS) studies showed that the optical energy band (Eg) of the oxide was of ~1.79 eV. Transmission electron microscopy (TEM) analyses indicated that the size of the nanoparticles was of ~29.5 nm on average. The surface area of the powders was estimated at 14.6 m2 /g by the Brunauer–Emmett–Teller (BET) method. Pellets prepared from the nanoparticles were tested in carbon monoxide (CO) and propane (C3 H8 ) atmospheres at different concentrations (0–500 ppm) and operating temperatures (100, 200 and 300◦ C). The pellets were very sensitive to changes in gas concentration and temperature: the response of the material rose as the concentration and temperature increased. The results showed that the MnSb2 O6 nanoparticles can be a good candidate to be used as a novel gas sensor.
AB - Nanoparticles of manganese antimonate (MnSb2 O6) were prepared using the microwave-assisted colloidal method for its potential application as a gas sensor. For the synthesis of the oxide, manganese nitrate, antimony chloride, ethylenediamine and ethyl alcohol (as a solvent) were used. The precursor material was calcined at 800◦ C in air and analyzed by X-ray diffraction. The oxide crystallized into a hexagonal structure with spatial group P321 and cell parameters a = b = 8.8054 Å and c = 4.7229 Å. The microstructure of the material was analyzed by scanning electron microscopy (SEM), finding the growth of microrods with a size of around ~10.27 µm and some other particles with an average size of ~1.3 µm. Photoacoustic spectroscopy (PAS) studies showed that the optical energy band (Eg) of the oxide was of ~1.79 eV. Transmission electron microscopy (TEM) analyses indicated that the size of the nanoparticles was of ~29.5 nm on average. The surface area of the powders was estimated at 14.6 m2 /g by the Brunauer–Emmett–Teller (BET) method. Pellets prepared from the nanoparticles were tested in carbon monoxide (CO) and propane (C3 H8 ) atmospheres at different concentrations (0–500 ppm) and operating temperatures (100, 200 and 300◦ C). The pellets were very sensitive to changes in gas concentration and temperature: the response of the material rose as the concentration and temperature increased. The results showed that the MnSb2 O6 nanoparticles can be a good candidate to be used as a novel gas sensor.
KW - Gas sensor
KW - MnSb2 O6
KW - Nanoparticles
KW - Pellets
KW - Sensitivity
UR - http://www.scopus.com/inward/record.url?scp=85050274777&partnerID=8YFLogxK
U2 - 10.3390/s18072299
DO - 10.3390/s18072299
M3 - Artículo
C2 - 30012964
SN - 1424-8220
VL - 18
JO - Sensors (Switzerland)
JF - Sensors (Switzerland)
IS - 7
M1 - 2299
ER -