Abstract
This manuscript addresses an experimental and theoretical investigation regarding the ozone (O3) gas-sensing properties of hematite microrhombuses obtained via the hydrothermal method. Gas-sensing experiments showed the sensitivity of the microrhombuses towards O3 gas from 12 ppb (parts-per-billion), presenting total recovery and a long-term stability of 4 months. Theoretical calculations revealed that the surfaces play an important role in the adsorption/desorption processes. Moreover, it was found that the presence of (1 0 4) surfaces is favorable to the high sensitivity towards O3 molecules, confirming the experimental results. These results allowed us to better understand the morphological changes and directly relate the sensing performance of hematite microcrystals at different exposed surfaces.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.