Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5458744 | Journal of Alloys and Compounds | 2017 | 7 Pages |
Abstract
Dodecahedron-like SnO2 nanomaterial was synthesized via a solvothermal method under mild reaction condition. The morphological and structural characterization results indicated that the as-prepare dodecahedral SnO2 nanocrystallines with the average length of 130 nm and width of 45 nm were partially surrounded by high surface-energy {221} facets. The gas-sensing performance of the sample was investigated and the experiment results showed that the sensor had a good sensitivity to sulfur dioxide (SO2) at 183 °C. To 800 ppb SO2, the response could reach 1.32 and the response time was about 10 s. The good SO2-sensing performance of SnO2 nanocrystallines was closely related to the high surface-energy {221} facets whose surface possessed more dangling bonds and the corresponding SO2-sensing mechanism was discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Xiaohui Ma, Qixuan Qin, Nan Zhang, Chuan Chen, Xin Liu, Yu Chen, Chuannan Li, Shengping Ruan,