Abstract
An intermetallic polycrystalline Pt 3Ti compound was submitted to oxygen treatments under 10 −6, 2 and 760 Torr at 400°C and the surface was analysed by X-ray and ultra-violet photoelectron spectroscopies. Titanium segregates to the surface to form an oxide which has been attributed to Ti 4O 7. Some platinum atoms are also found in the Pto state. Under hydrogen at 760 Torr and 350°C, this oxidized surface leads to platinum metallic ensembles surrounded by islands of titanium oxides which have been attributed to Ti 2O 3 and TiO 2 and which are supported on Pt 3Ti. Such a surface exhibits the same catalytic behaviour for skeletal rearrangement reactions of hexanes as supported Pt/TiO 2 catalysts in a strong metal-support interactions state.
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.
