Laurens Mandemaker

Research

Surface nanobubbles are nanoscopic gaseous objects, which are formed mainly on hydrophobic surfaces. Although many catalytic processes taken place at the solid-liquid-gas interface, the implications of surface nanobubbles in the field of heterogeneous catalysis are totally not explored. A prominent example where surface nanobubbles may play a role is the catalytic hydrogenation of biomass-derived chemicals. In this project, we will develop a high-temperature, high-pressure Atomic Force Microscopy (AFM)-Vibrational Spectroscopy set-up to investigate the one pot hydrogenation reaction of levulinic acid into pentanoic acid over Ru/H-ZSM-5. To enable a detailed AFM investigation large coffin-shaped ZSM-5 crystals will be investigated and the presence and properties of the surface nanobubbles will be studied as a function of the surface roughness and Si/Al ratio (i.e., changing surface hydrophilicity). The latter will be realized by applying different post-treatments, while altering the hydrogenation conditions may affect the stability of the formed surface nanobubbles.

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: “Can We Observe Surface Nanobubbles during Biomass Catalysis on Zeolite Surfaces?: An Operando AFM-Vibrational Spectroscopy Study”

2014 – 2016:
Master’s degree in “Nanomaterials: Chemistry & Physics”., Utrecht University, Netherlands.
Thesis entitled: “The Methanol-to-Olefins Reactions: the Influence of Water Studied by in situ Spectroscopy”.

2011-2014:
Bachelor’s degree in Chemistry, Utrecht University, Netherlands.
Thesis entitled: “Shape Selectivity in zeolites: Accessibility of zeolite pores by fluorescent organic probes”

1992:
Born in de Bilt, Netherlands (9thof October)