Abstract
A simple in situ method is applied for the synthesis ofSnO2-coatedmultiwalled nanotubes (MWNTs), in which MWNT bundles are uniformly coated with a monolayer ofSnO2 nanoparticles(∼4 nm).A hybrid SnO2 material combined with 0.1% wt MWNTs is fabricated and its CO gas-sensing properties are evaluated.SnO2-coated MWNTs are homogeneously distributed in theSnO2 matrix and the specific surface area of the hybrid material is nearly two times higher compared topure SnO2 material. The electrical resistance is found to be dramaticallydecreased by three orders of magnitude compared to a conventionalSnO2 sensor. The CO gas sensitivity is found to be three times higher than that of aSnO2 sensor, with good stability, indicating that the addition of 0.1% wtMWNTs is effective in improving the sensitivity towards CO. A model isproposed to explain the improvement of CO gas sensitivity for our hybridMWNT/SnO2 material.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
