To design the ideal water oxidation catalyst, understanding of the catalytic mechanism and decomposition pathways is essential.

Promotors: Prof.dr. E. Bouwman, Prof.dr. E. Drent

In the search for sustainable energy solutions, the idea of artificial photosynthesis has been proposed as an approach with which to use water and sunlight to produce hydrogen.

In this dissertation iron-based homogeneous catalysts were synthesized, characterized and investigated for water oxidation activity.

Promotor: J.W.M. Frenken Co-Promotor: R. Felici

In this dissertation, the synthesis and characterization of a series of iron complexes based on different ligand platforms are described.

Before the large scale use of renewable energy sources can be implemented in our society, the storage of electrical energy needs to be tackled. Storage the energy as hydrogen via the reduction of protons is a good option.

Bicarbonate buffer is largely found in nature due to its ability to regulate pH variations around neutral values. As the pH changes, so does the speciation of the buffer.

Promotor: J.W.M. Frenken Co-Promotores: I.M.N. Groot; L.B.F. Juurlink

Promotor: Prof.dr. M.T.M. Koper, Co-Promotor: F. Calle-Vallejo

Indonesia is experiencing various environmental challenges related to its fast economic growth. Therefore, it is necessary to have measurable and applicable indicators to obtain accurate data and information regarding the costs of adverse environmental impacts arising from economic activities to support…

Lezing

The focus throughout this thesis will be on gathering fundamental studies of the detailed structure and composition of the electrode/electrolyte interface effect on the rate and mechanism of key electrocatalytic reactions.

Wiskunde en Natuurwetenschappen, Leids Instituut voor Chemisch Onderzoek (LIC)

The dissertation describes TEM experiments on heterogeneous catalysts.

Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink

Marc Koper heeft de Netherlands Catalysis and Chemistry Award ontvangen tijdens de 20e bijeenkomst van de Netherlands' Catalysis and Chemistry Conference. ‘De ultieme kandidaat voor deze prijs’, zo valt te lezen in een van de aanbevelingsbrieven.

In most applications, electrocatalysts exhibit a large surface area to volume ratio, for example using nanoparticles.

Promotor: Huub J.M. de Groot, Co-promotor: Francesco Buda

Wiskunde en Natuurwetenschappen, Leids Instituut voor Chemisch Onderzoek (LIC)

This thesis focuses on the synthesis, characterization and performance towards CO2 electroreduction of mono and bi-metallic particles based on p-block metals

Fundamental understanding of molecular reactions on metal surfaces is important for improving heterogeneous catalysis.

Heterogeneous catalysis is essential to many industrial applications. These catalysts are often comprised of supported nanoparticles, which contain various different surface sites.

Promotor: M.T.M. Koper, Co-promotor: J.B.F. Juurlink

Organic molecules in interstellar space are important as they influence the structure of galaxies and star formations. Studying catalytic processes in space allows us to understand how molecular species are formed and chemically evolved in the interstellar medium and solar system objects.

In augustus 2009 kwam Saeed Raoufmoghaddam uit Iran naar Leiden om zijn promotieonderzoek uit te voeren in de groep ‘Metals in Catalysis, Biomimetics & Inorganic Materials’. Korte tijd later werd hij gevolgd door zijn vrouw Azadeh Bahreman, die ook in Nederland een baan wilde zoeken. Zij kreeg een promotieplaats…

From surface science towards industrial practice using high-pressure scanning tunneling microscopy.

Molecular complexes can be used as electrocatalysts for oxygen reduction, water oxidation, and/or hydrogen peroxide production.

Promotor: Prof.dr. J.W.M. Frenken

In surface science there is great effort to move from studying simple, flat model surfaces in vacuum to investigating more complex model catalysts in gas environments (in situ). This thesis gives three examples of such studies using microscopy and spectroscopy.

Promotie

Chemicus Irene Groot krijgt een TA-subsidie toegekend. Groot gaat samenwerken met Shell, Leiden Probe Microscopy, DSM Resolve en Universiteit Utrecht en onderzoek doen naar katalysatoren voor de productie van grondstoffen en brandstoffen.

Promotor: Prof.dr. E. Bouwman, Co-promotor: S. Bonnet

Met de NMR faciliteit doen we onderzoek naar de synthese van paramagnetische moleculen om kennis te vergaren over de structuur en dynamiek van eiwitten. Deze kennis kan dienen als basis voor een medicijn dat zich hecht aan een eiwit of voor de ontwikkeling van vaccins. Medicijnontwikkeling is één van…

Catalysis is of extreme relevance in the production of everyday materials and plays a central role in many aspects of our life.

Promotie

Promotie

Consequences for sediment stability and seston trapping

Promotor: Prof.dr. E. Bouwman, Co-promotor: S. Bonnet

Promotor: M.L. van Hecke

In meta-analysis, heterogeneity often exists between studies. In such cases, it is essential to investigate the sources of heterogeneity and understand the relationship between effect size and study characteristics (i.e., moderators).

Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).

Hydrodesulfurization (HDS) is an ubiquitous part of oil refining that ensures that fuels are cleaned of impurities and environment release of pollutants such as SOx and NOx gasses are minimized.

Promotie

Promotor: Prof.dr. G.J. Kroes

With the energy transition toward a renewable energy supply and a CO2-neutral economy, electrification of the energy system is rising in importance, which leads to the challenge of long-term storage of renewable electricity.

Klaas Jan Schouten heeft de Nederlandse Katalyseprijs 2015 van de Dutch Catalysis Society gekregen. Hij kreeg de prijs voor zijn proefschrift 'Electrocatalytic carbon dioxide reduction – A mechanistic study'.