Using Ion-beam Sputtering to modify Heterogeneous Nanodispersed Catalysts

Nancy Artioli, Ruairi O'Donnell, Salvatore Scaglione, Rosa Cerchia, Veronica Cellorio

Research output: Contribution to conferenceAbstract

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 languageEnglish
Publication statusPublished - 18 Aug 2019
Event14th EUROPACAT European Congress on Catalysis - AACHEN, AACHEN, Germany
Duration: 18 Aug 201923 Aug 2019
http://europacat2019.eu

Conference

Conference14th EUROPACAT European Congress on Catalysis
Abbreviated titleEUROPACAT
CountryGermany
CityAACHEN
Period18/08/201923/08/2019
Internet address

Bibliographical note

Poster communication

Keywords

  • ion sputtering
  • NOx
  • after-treatment

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