Abstract
SnO2/Zn2SnO4 hollow microspheres with porous shell (HPMSs) were successfully prepared by using ZnSn(OH)6 (ZHS) hollow microspheres (HMSs) as sacrificial templates, which were pre-synthesized via a fast solid-state grinding method combined with subsequent chemical etching process. The obtained samples were characterized by XRD, SEM, TEM, and N2 adsorption-desorption, respectively. Results indicated that the diameter of the prepared SnO2/Zn2SnO4 HPMSs were around 300–700nm and their shell-thickness was about 50nm. On the shell of the composite HPMSs, a large number of 5–20nm pores were in situ created. In comparison with the SnO2/Zn2SnO4 porous microspheres (PMSs) that prepared directly from solid ZHS microspheres, the SnO2/Zn2SnO4 HPMSs exhibited much higher sensitivity to formaldehyde, demonstrating the improved gas-sensing performance through structural evolution from PMS to HPMS.
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.
