TY - JOUR
T1 - Synthesis and gas sensing properties of perovskite CdSnO3 nanoparticles
AU - Jia, Xiaohua
AU - Fan, Huiqing
AU - Lou, Xiangdong
AU - Xu, Jiaqiang
PY - 2009
Y1 - 2009
N2 - The CdSnO3 semiconducting oxide that can be used as a gas-sensitive material for detecting ethanol gas is reported in this paper. CdSnO3 nanoparticles were prepared by a chemical co-precipitation synthesis method, in which the preparation conditions were carefully controlled. The n-type gas-sensing semiconductors were obtained from the as-synthesized powders calcined at 600°C for 1 h. The phase and microstructure of the obtained nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and Brunauer-Emmett-Teller (BET) method with a gas adsorption analyzer. CdSnO3 has a small particle size range of 30-50 nm and a high surface area of 9.12 m2/g, and a uniformity global shape. The gas sensitivity and operating temperature, and selectivity of CdSnO3-based sensors were measured in detail. The gas sensors fabricated by CdSnO3 nanoparticles had good sensitivity and selectivity to vapor of C2H5OH when working temperature at 267°C, the value of gas sensitivity at 100 ppm of C2H 5OH gas can reach 11.2 times. Furthermore, gas-sensing mechanism was studied by using chromatographic analysis.
AB - The CdSnO3 semiconducting oxide that can be used as a gas-sensitive material for detecting ethanol gas is reported in this paper. CdSnO3 nanoparticles were prepared by a chemical co-precipitation synthesis method, in which the preparation conditions were carefully controlled. The n-type gas-sensing semiconductors were obtained from the as-synthesized powders calcined at 600°C for 1 h. The phase and microstructure of the obtained nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and Brunauer-Emmett-Teller (BET) method with a gas adsorption analyzer. CdSnO3 has a small particle size range of 30-50 nm and a high surface area of 9.12 m2/g, and a uniformity global shape. The gas sensitivity and operating temperature, and selectivity of CdSnO3-based sensors were measured in detail. The gas sensors fabricated by CdSnO3 nanoparticles had good sensitivity and selectivity to vapor of C2H5OH when working temperature at 267°C, the value of gas sensitivity at 100 ppm of C2H 5OH gas can reach 11.2 times. Furthermore, gas-sensing mechanism was studied by using chromatographic analysis.
UR - http://www.scopus.com/inward/record.url?scp=59749087742&partnerID=8YFLogxK
U2 - 10.1007/s00339-008-4865-8
DO - 10.1007/s00339-008-4865-8
M3 - 文章
AN - SCOPUS:59749087742
SN - 0947-8396
VL - 94
SP - 837
EP - 841
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 4
ER -