Abstract
The phase transformation of β-Fe2O3 with a hollow nanostructure was first investigated by in-situ X-ray diffractometry (XRD) at elevated temperatures. As a starting material, the β-Fe2O3 hollow nanoparticles (HNP) less than 40 nm in size were prepared by chemical vapor condensation (CVC) process. The XRD analysis revealed that the initial β-Fe2O3 phase was transformed to γ-Fe2O3 at 500 °C, and no further transformation from γ-Fe2O3 to α-Fe2O3 was observed up to 800 °C. The experimental findings indicate that the increase of surface area derived from the hollow structure is responsible for the decrease of the transformation temperature and the stability of the γ-Fe2O3 phase at high temperatures.
Sign-in/Register to access full text options 
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.
