Abstract
Controlled reduction and oxidation reaction experiments on metal oxide catalysts, sulphides, and iron-titanium oxide minerals have been conducted in an environmental (or gas reaction) cell fitted to an AEI-EM7 high voltage electron microscope operating at 1MV. With this technique it is possible to observe dynamic heterogeneous reactions using gas pressures in the range from a few torr to an atmosphere, and temperatures from room temp, to ∼1000°C. A full dynamic description of the behaviour of the solid with respect to temperature, pressure, gaseous environments can therefore be obtained. These observations are useful in understanding mechanisms of heterogeneous catalysis, redox processes, and migration of the reduced species, which affect catalyst selectivity and activity. Examples of some in-situ reactions have been reported in the literature.
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 callMore From: Proceedings, annual meeting, Electron Microscopy Society of America
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.
