Silvia Zanoni
Utrecht University
9 Papers
18 Citations
Silvia Zanoni is an academic researcher from Utrecht University. The author has contributed to research in topics: Polymerization & Catalysis. The author has an hindex of 4, co-authored 6 publications.
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Papers
Heterogeneity in the Fragmentation of Ziegler Catalyst Particles during Ethylene Polymerization Quantified by X-ray Nanotomography.
Koen W. Bossers,Roozbeh Valadian,Jan Garrevoet,Stijn Van Malderen,Robert Lap Key Chan,Nic Friederichs,John Severn,Arnold Wilbers,Silvia Zanoni,Maarten K. Jongkind,Bert M. Weckhuysen,Florian Meirer +11 more
- 04 May 2021
TL;DR: It is shown that there is a strong heterogeneity in the overall catalyst particle fragmentation and thus polymerization activity within the entire ensemble, which hints toward local mass transfer limitations or other deactivation phenomena.
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Early-stage particle fragmentation behavior of a commercial silica-supported metallocene catalyst
TL;DR: In this paper, focused ion beam-scanning electron microscopy was employed to visualize particle cross-sections with high 2-D resolution (i.e., a few tens of nm).
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X-ray nanotomography uncovers morphological heterogeneity in a polymerization catalyst at multiple reaction stages
Maximilian J. Werny,Roozbeh Valadian,Leon M. Lohse,Anna-Lena Robisch,Silvia Zanoni,Coen Hendriksen,Bert M. Weckhuysen,Florian Meirer +7 more
- 03 Nov 2021
TL;DR: In this paper, the authors employed non-destructive hard X-ray holotomography to quantitatively assess the 3D morphology of multiple silica-supported hafnocene-based catalyst particles during the early stages of gas-phase ethylene polymerization.
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Role of Titanium in Ti/SiO2‐Supported Metallocene‐based Olefin Polymerization Catalysts. Part 2: Particle Fragmentation
TL;DR: In this paper , a commercial SiO2 modified by the addition of a TiO2 layer on its surface and pore walls offers a support for metallocene-based ethylene polymerization catalysts with a 35% improved catalytic activity.
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Role of Titanium in Ti/SiO2‐Supported Metallocene‐based Olefin Polymerization Catalysts. Part 1: Genesis of Active Sites and Catalytic Performance
TL;DR: In this paper , a titanated SiO2 (Ti/SiO2) was used as an improved support material for zirconocene catalysts, which lead to ∼35% higher ethylene polymerization yields when compared to the unmodified SiO 2 supported metallocene.
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