Abstract
Ion beam engineering is one technique which is used for the development of such technically advanced materials[1]. This work shows how ion beam sputtering can be used to controllably modify the surface of solid heterogeneous catalysts. By strategically manipulating the surface nanostructure of the materials, their catalytic performance and resistance to aging can be enhanced. This can also reduce the noble metal substitution on the catalysts oxide support[2]. The technique has been investigated using a Pt/Ce0.5Zr0.5O2 catalyst; a conventional emission control catalyst used on mobile combustion engines[3][4]. The technique has been studied by changing different parameters of the ion beam to understand how they independently effect the catalyst. Modeling of the treatment has also been introduced to the describe erosion of the surface through ion sputtering, and how this is influenced by the type of ion used, the number of doses and the current of the ion beam.
Original language | English |
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Publication status | Published - 18 Aug 2019 |
Event | 14th EUROPACAT European Congress on Catalysis - AACHEN, AACHEN, Germany Duration: 18 Aug 2019 → 23 Aug 2019 http://europacat2019.eu |
Conference
Conference | 14th EUROPACAT European Congress on Catalysis |
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Abbreviated title | EUROPACAT |
Country/Territory | Germany |
City | AACHEN |
Period | 18/08/2019 → 23/08/2019 |
Internet address |
Bibliographical note
Poster communicationKeywords
- ion sputtering
- NOx
- after-treatment
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Dive into the research topics of 'Using Ion-beam Sputtering to modify Heterogeneous Nanodispersed Catalysts'. Together they form a unique fingerprint.Student theses
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The development of ceria-based catalysts for automotive after-treatment applications
O'Donnell, R. (Author), Artioli, N. (Supervisor), Dec 2021Student thesis: Doctoral Thesis › Doctor of Philosophy
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