Koen Bossers

PhD candidate
Employed since: September 2016
Phone: +31653264973
Email: K.w.bossers@uu.nl
Room: David de Wied 4th floor study area

Research

Research

Multi-scale Chemical Imaging of Multi-component Catalyst Materials: New Opportunities to Understand Catalytic Activity and Related Deactivation Phenomena of Ziegler-Natta Catalysts

Heterogenous Ziegler-Natta catalysts have been the major workhorse in the production of polyolefins for decades. The heterogeneous Ziegler-Natta catalysts are multi-component hierarchically structured catalyst materials. These catalyst materials are made up of an activated MgCl2 support, TiCl4 (comprising the active site) and Lewis base species acting as donors. Such materials are build up from primary particles of 1-10 nm of MgCl2 with TiCl4 and the Lewis base species chemisorbed to the lateral lattices. These primary units build up spherical catalyst particles with typical size dimensions of 5-30 μm. Due to the complex hierarchical structure of the catalyst material combined with high sensitivity towards O2 and H2O there is a lack of knowledge on the 2D and 3D chemical structure of the catalyst material. The aim of this research is to use advanced chemical imaging methods such as scanning transmission x-ray microscopy (STXM) and transmission x-ray microscopy (TXM) combined with other advanced microscopy techniques working at different spatial resolutions and depths of focus to obtain spatially resolved chemical and structural information of both model and industrial heterogeneous Ziegler-Natta catalysts.

C.V.

C.V.

2016-present:
PhD candidate under supervision of prof.dr.ir. Bert Weckhuysen at the faculty of Inorganic Chemistry and Catalysis, Utrecht University. Focus of research: “Multi-scale Chemical Imaging of Multi-component Catalyst Materials: New Opportunities to Understand Catalytic Activity and Related Deactivation Phenomena of Ziegler-Natta Catalysts”.

February-July 2016:
Internship project at University of Oslo, Norway.
Thesis entitled:  “Studies on the Hydrogenation of CO2 over a Metal-Organic Framework Supported Platinum Catalyst”

2014 – 2016:
Master’s degree in “Nanomaterials: Chemistry & Physics”., Utrecht University, Netherlands.
Thesis entitled: “ Developing Novel HTM Thin Films for Hybrid Perovskite Photovoltaics”.

2011-2014:
Bachelor’s degree in Chemistry, Utrecht University, Netherlands.
Thesis entitled: “Preparation of Mesoporous Silica Confined CuS and Cu2S Nanoparticles”

1993:
Born in Nieuwegein, Netherlands (26th of August)

 

Publications

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Piovano, A; Pletcher, P; Velthoen, M E Z; Zanoni, S; Chung, S -H; Bossers, K; Jongkind, M K; Fiore, G; Groppo, E; Weckhuysen, B M

Genesis of MgCl2-based Ziegler-Natta Catalysts as Probed with Operando Spectroscopy Journal Article

ChemPhysChem, 19 (20), pp. 2662-2671, 2018, (cited By 0).

Links | BibTeX

Gutterød, E S; Øien-ØDegaard, S; Bossers, K; Nieuwelink, A -E; Manzoli, M; Braglia, L; Lazzarini, A; Borfecchia, E; Ahmadigoltapeh, S; Bouchevreau, B; Lønstad-Bleken, B T; Henry, R; Lamberti, C; Bordiga, S; Weckhuysen, B M; Lillerud, K P; Olsbye, U

CO2 Hydrogenation over Pt-Containing UiO-67 Zr-MOFs - The Base Case Journal Article

Industrial and Engineering Chemistry Research, 56 (45), pp. 13206-13218, 2017, (cited By 5).

Links | BibTeX