Erik Maris MSc

Victor J. Koningsberger building 
Budapestlaan 4B, 3584 CD  Utrecht
P.O. Box 80 000, 3508 TA Utrecht
The Netherlands
phone: +31 (0)30 253 7662


David de Wied building, room 
Universiteitsweg 99, 3584 CG  Utrecht
phone: +31 (0)30 253 7400


Supervisors: Dr. Florian Meirer and Dr. Freddy Rabouw
Promotor: Prof. dr. ir. Bert Weckhuysen 

Rational catalyst design is the holy grail of modern catalysis, which requires a thorough understanding of structure-performance relationships. Micro- and spectroscopy plays a pivotal role in the study of these relationships through the visualization of both the diffusive species, such as reaction products, and the pore network of a catalyst particle [1]. A single micro(spectro)scopic technique is not capable of capturing the dynamics and many length scales involved, which can be overcome by combining various imaging techniques in a correlative manner. Despite that correlative microscopy is a rich research field for biological samples, it is largely unexplored in the area of materials science [2]. The rapid developments in 3D super-resolution fluorescence microscopy, 3D X-ray microscopy, and 3D electron microscopy techniques hold great promise for the development of correlative microscopy to study inorganic materials [3-5]. The aim of this research project is the development and use of a combination of different microscopy and spectroscopy techniques to study structure-performance relationships in single porous catalyst particles.

  1. Buurmans, Inge L.C., and Bert M. Weckhuysen. “Heterogeneities of individual catalyst particles in space and time as monitored by spectroscopy.” Nature chemistry 4.11 (2012): 873.
  2. Hauser, Meghan, et al. “Correlative super-resolution microscopy: new dimensions and new opportunities.” Chemical reviews 117.11 (2017): 7428-7456.
  3. von Diezmann, Alex, Yoav Shechtman, and W. E. Moerner. “Three-dimensional localization of single molecules for super-resolution imaging and single-particle tracking.” Chemical reviews117.11 (2017): 7244-7275.
  4. Meirer, Florian, et al. “Mapping metals incorporation of a whole single catalyst particle using element specific X-ray nanotomography.” Journal of the American Chemical Society 137.1 (2015): 102-105.
  5. de Winter, D.A. Matthijs, Florian Meirer, and Bert M. Weckhuysen. “FIB-SEM tomography probes the mesoscale pore space of an individual catalytic cracking particle.” ACS catalysis 6.5 (2016): 3158-3167.