Dissertation
Synthesis and activation of a thermally stable ceria-supported platinum single-atom catalyst for low-temperature CO oxidation
Doctor of Philosophy (PhD), Washington State University
01/2019
Handle:
https://hdl.handle.net/2376/111542
Abstract
Ceria-supported Pt catalysts have great potential for oxidation reactions and industrial applications such as vehicle emission control. These applications can be greatly benefited by tailoring this catalyst to meet their specific requirements. Single-atom catalysts have the highest atom efficiency and can have superior reactivity and selectivity. The synthesis of a ceria-supported Pt single-atom catalyst by methods that can be used in an industrial setup and scale is very important. This dissertation reports the synthesis of a thermally stable ceria-supported Pt single-atom catalyst by high-temperature calcination. Moreover, the limits in the amount of Pt that can be stabilized as single atoms and the anchoring sites for Pt single atoms are also discussed. Activation of the ceria-supported Pt single-atom catalyst to achieve high activity at low temperature for CO oxidation is presented and the catalyst characteristics affecting the activity are also discussed. Finally, a synthesis method is presented to stabilize Pt as single atoms on ceria which can remain stable at high temperature not only under oxidizing conditions but also reducing conditions while still exhibiting high activity for low-temperature CO oxidation.
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Details
- Title
- Synthesis and activation of a thermally stable ceria-supported platinum single-atom catalyst for low-temperature CO oxidation
- Creators
- Xavier Isidro Pereira Hernandez
- Contributors
- Yong Wang (Advisor)Jean-Sabin McEwen (Committee Member)Norbert Kruse (Committee Member)Junming Sun (Committee Member)
- Awarding Institution
- Washington State University
- Academic Unit
- Chemical Engineering and Bioengineering, School of
- Theses and Dissertations
- Doctor of Philosophy (PhD), Washington State University
- Number of pages
- 267
- Identifiers
- 99900581501101842
- Language
- English
- Resource Type
- Dissertation