Kunstmatige fotosynthese heeft als doel om via chemische processen zonne-energie om te zettn in brandstof. Semi-kunstmatige fotosynthese is een hybride aanpak waarbij chemische maar ook biotechnologische processen worden gebruikt. Wij hebben als doel om een hybride systeem te ontwikkelen met behulp…

In the last decade, the redox interconversion between metal thiolate and disulfide compounds has been extensively investigated for copper, but not for other transition metal ions.

Promotor: Prof.dr. E. Bouwman

The redox-conversion reaction of metal-disulfide and metal-thiolate complexes are important, as they may shed light on electron-transfer reactions that often occur in Nature.

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

Promotores: G.W. Canters, T.J. Aartsma

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

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

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.

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

The research described in this thesis focused on the preparation of S/N functionalized carbene ligands and their transition metal complexes, and the exploration of their application as electrocatalysts for proton reduction.

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

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

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

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.

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.

The dissertation describes TEM experiments on heterogeneous catalysts.

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

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

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.

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

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

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

Individuele moleculen zijn extreem moeilijk te zien via hun zwakke fluorescentie. Piepkleine gouden nanostaafjes fungeren als nieuwe antennes om hun signaal 500 maal te versterken. Publicatie op 24 februari in Angewandte Chemie.

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

De Dick Stufkens Prijs 2009 wordt toegekend aan dr. Diego Millo voor zijn proefschrift “Combined Electrochemistry and Raman Spectroscopy of Heme Proteins”. De prijs, die bestaat uit een getuigschrift en een geldbedrag van 1.000 euro, wordt op 12 november tijdens het 15-jarig jubileumsymposium van de…

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.

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.

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

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

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

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.

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

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

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.

Promotie

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…

Promotie

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

Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia

The growing demand of energy indicates that global energy resources in the form of fossil fuels will not be sufficient in the future. In order to solve potential future energy problems development of a sustainable hydrogen economy is highly desirable.

Lezing

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