Allen, Lisa Jane;
(2024)
Determining the structure-activity relationships of supported
palladium oxide nanoparticles:
a combined X-ray scattering and spectroscopy approach.
Doctoral thesis (Ph.D), UCL (University College London).
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Lisa Jane Allen - 19181413 - PhD Thesis.pdf - Accepted Version Access restricted to UCL open access staff until 1 July 2025. Download (7MB) |
Abstract
The use of catalysis is essential for the majority of industrial processes, including emission control technology. A comprehensive understanding of these catalysts is vital in not only improving current technology, but in providing knowledge for future systems. In this work, the characterisation of the structural evolutions of supported nanoparticulate palladium oxide, for their use in industrially relevant catalytic systems, have been realised. Carbon monoxide and methane oxidation have been used as exemplary catalytic reactions to study the structure-activity relationship of palladium oxide towards these pollutants. Specifically, the synergistic utilisation of operando and in situ X-ray scattering and spectroscopy techniques, alongside lab-based, allows for the study of realistic catalytic systems across the nanoscale, from nanoparticles to the local atomic structure. This has given key insights into the morphological and fundamental changes occurring under operating conditions, such as the reducibility and stability of palladium oxide nanoparticles, which affect activity. The dynamic nature of supported metal oxides will directly influence the activity of the catalyst throughout its lifetime, and the development of a methodology to understand this nature will be beneficial for not only emission control technology, but the wider scientific community. Moreover, this research could help improve the design protocol of alternative metal oxide nanoparticle catalysts, ultimately leading to an improvement in catalytic processes.
| Type: | Thesis (Doctoral) |
|---|---|
| Qualification: | Ph.D |
| Title: | Determining the structure-activity relationships of supported palladium oxide nanoparticles: a combined X-ray scattering and spectroscopy approach |
| Language: | English |
| Additional information: | Copyright © The Author 2023. Original content in this thesis is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Licence (https://creativecommons.org/licenses/by-nc/4.0/). Any third-party copyright material present remains the property of its respective owner(s) and is licensed under its existing terms. Access may initially be restricted at the author’s request. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10193751 |
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