20
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      High-Energy Faceted SnO₂-Coated TiO₂ Nanobelt Heterostructure for Near-Ambient Temperature-Responsive Ethanol Sensor.

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          A SnO2 gas sensor was prepared by a two-step oxidation process whereby a Sn(II) precursor was partially oxidized by a hydrothermal process and the resulting Sn3O4 nanoplates were thermally oxidized to yield SnO2 nanoplates. The SnO2 sensor was selective and responsive toward ethanol at a temperature as low as 43 °C. This low sensing temperature stems from the rapid charge transport within SnO2 and from the presence of high-energy (001) facets available for oxygen chemisorption. SnO2/TiO2 nanobelt heterostructures were fabricated by a similar two-step process in which TiO2 nanobelts acted as support for the epitaxial growth of intermediate Sn3O4. At temperatures ranging from 43 to 276 °C, the response of these branched nanobelts is more than double the response of SnO2 for ethanol detection. Our observations demonstrate the potential of low-cost SnO2-based sensors with controlled morphology and reactive facets for detecting gases around room temperature.

          Related collections

          Author and article information

          Journal
          ACS Appl Mater Interfaces
          ACS applied materials & interfaces
          American Chemical Society (ACS)
          1944-8252
          1944-8244
          Nov 11 2015
          : 7
          : 44
          Affiliations
          [1 ] State Key Laboratory of Crystal Materials, Shandong University , Jinan, Shandong 250100, China.
          [2 ] School of Information Science and Engineering, Shandong University , Jinan, Shandong 250100, China.
          [3 ] NanoQAM Research Center, Department of Chemistry, University of Quebec at Montreal , 2101 rue Jeanne-Mance, CP 8888, Montreal, Quebec H3C3P8, Canada.
          [4 ] Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Science , Beijing 100864, China.
          Article
          10.1021/acsami.5b08630
          26484799
          c58d60a6-4f85-45d3-b462-04594abb5fe7
          History

          room temperature sensor,heterostructure,high energy facet,SnO2 nanoplates,TiO2 nanobelts,ethanol

          Comments

          Comment on this article