Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"Environmental TEM"”.
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Activating oxygen chemistry on metal and metal oxides: design principles of electrochemical catalysts
… electrochemical devices. In this work, systematic studies have been applied on two catalyst systems: Pt-metal (Pt-M) alloys for ORR and perovskite oxides for OER. The combination of electrochemical characterizations with transmission electron microscopy (TEM) techniques provides deeper …
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In situ electron microscopy of nanomaterials dynamics in heterogeneous phase environments
… of reliable energy conversion and storage systems for a sustainable future. These functional nanomaterials often experience dynamic physical and chemical changes during the operating cycles. Investigating the dynamics in real-time allows establishing structure-property-performance …
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In situ investigation of the dealloying process using environmental transmission electron microscopy
… in the past, it was primarily on model systems such as single crystal gold-based alloys which are governed by the surface diffusion mechanism. This study seeks to provide two different examples of expanding the application of dealloying investigation closer to realistic systems. These are: …
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In-situ electron imaging of oxidation and reduction of rutile (TiO2) nanocrystals and interaction with palladium
… in the catalytic converters of automobiles for environmental remediation, Rh/ZrO2 is used for fuel refinement, and Pt/TiO2 is an excellent photocatalyst. Since chemical reactions take place at surfaces and interfaces, the catalytic reactions are highly dependent on the oxide surface structure …