Jessi van der Hoeven

PhD Candidate
Employed since: December 2014
Phone: +31 (0)30 2532925
Email: j.e.s.vanderhoeven@uu.nl
Room: DDW 4th floor and Ornstein lab 012

Research

Research

Self-assembly of stable gold-based catalysts

Similar to atoms in conventional solids, nanoparticles can be used as building blocks to construct larger so-called superstructures. In this project, catalytically active metal nanoparticles (Au-based) are self-assembled with oxide colloids into ordered superstructures. The nanoparticles spontaneously form an ordered colloidal crystal when gradually evaporating the surrounding solvent. Dispersing the nanoparticles in oil droplets rather than a continuous phase results in the formation of spherically shaped superstructures [Figure 1a]. Such well-defined systems can serve as model catalysts of which the composition, size and placement of the components can be tuned with great precision.

The aim of the project is twofold. First, we want to synthesize a set of binary colloidal crystals, identify the different crystal structures and thereby gain a deeper insight in the nucleation of binary crystals, a fundamental issue in soft matter science that is still largely unsolved.  Second, we want to study the catalytic properties of these colloidal crystals, in particular the relationship between the crystal structure and the catalytic stability. We expect that the degree of encapsulation of the Au nanoparticles either by neighboring silica nanoparticles or directly with a silica shell [Figure 1b] will prevent particle growth and sintering during catalysis and will thus enhance the catalytic stability. In addition, the melting temperature of gold-based nanoparticles in the colloidal crystal as a function of the crystal structure will be measured.

C.V.

C.V.

September 2012 – October 2014:
Master in Nanomaterials: Chemistry & Physics (Honours)
Institute: Utrecht University, the Netherlands
Master thesis: ‘Colloids near oil-water interfaces’
Research group: Soft Condensed Matter & Biophysics, Utrecht University
Supervisor: Prof. dr. A van Blaaderen

Internship: ‘A scanning tunneling microscopy study of single atom catalysts’
Research group: Surface Physics, Institute of Applied Physics, Vienna University of Technology
Supervisor: Prof. dr. U. Diebold

September 2009 − July 2012
Bachelor in Chemistry (Honours)
Institute: Utrecht University
Bachelor thesis: ‘Medal Catalysts: enhanced stability of gold silver alloyed catalysts’
Research group: Inorganic Chemistry & Catalysis, Utrecht University
Supervisor: Prof. dr. ir. K.P. de Jong

Publications

Pompe, C E; van Uunen, D L; van der Wal, L I; van der Hoeven, J E S; de Jong, K P; de Jongh, P E

Stability of mesocellular foam supported copper catalysts for methanol synthesis Journal Article

Catalysis Today, 2019, (cited By 0).

Links | BibTeX

Hoeven, Van Der J E S; Welling, T A J; Silva, T A G; Reijen, Van Den J E; Fontaine, La C; Carrier, X; Louis, C; Blaaderen, Van A; Jongh, De P E

In Situ Observation of Atomic Redistribution in Alloying Gold-Silver Nanorods Journal Article

ACS Nano, 12 (8), pp. 8467-8476, 2018, (cited By 0).

Links | BibTeX

Albrecht, W; Hoeven, Van Der J E S; Deng, T -S; Jongh, De P E; Blaaderen, Van A

Fully alloyed metal nanorods with highly tunable properties Journal Article

Nanoscale, 9 (8), pp. 2845-2851, 2017, (cited By 8).

Links | BibTeX

Bliem, R; Hoeven, Van Der J E S; Hulva, J; Pavelec, J; Gamba, O; Jongh, De P E; Schmid, M; Blaha, P; Diebold, U; Parkinson, G S

Dual role of CO in the stability of subnano Pt clusters at the Fe3 O4(001) surface Journal Article

Proceedings of the National Academy of Sciences of the United States of America, 113 (32), pp. 8921-8926, 2016, (cited By 24).

Links | BibTeX