190 search results for “catalysis” in the Public website
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Homogeneous Catalysis
To achieve a more sustainable society, it is important to move away from cradle-to-grave applications, and to develop a more circular economy, wherein reusability and recycling are part of the development of any new product. In that context, the currently undergoing change of chemical feedstocks from…
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Catalysis and Surface Chemistry
In the Catalysis and Surface Chemistry group, we investigate how catalysis works on the molecular level. The group is divided in six subgroups, focusing on different aspects of heterogeneous catalysis, homogeneous catalysis and electrocatalysis.
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Metals for Catalysis and Sustainability
Central in coordination and organometallic chemistry is the synthesis of new chelating ligands, the synthesis and characterization of metal complexes with these ligands, and the study of their properties. An important goal in my research is to create understanding of the relation between the structures…
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CO oxidation catalysis at multiple length scales
Promotor: J.W.M. Frenken, Co-Promotor: R. Felici
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Operando research in heterogeneous catalysis
The nanoscale structure of a catalyst under reaction conditions determines its activity, selectivity, and stability. For the production of sustainable energy and materials, new catalysts are needed. By understanding the structure-activity relationships of catalysts under reaction conditions, insight…
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Redox catalysis for a sustainable energy infrastructure
The main research theme in the group of Dennis Hetterscheid is to understand and mimic bioinorganic multi-electron processes that are relevant to our future energy infrastructure. Reduction of protons generates hydrogen that can be used as a chemical fuel. Alternatively to gaseous hydrogen, the reduction…
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Metals in Catalysis, Biomimetics & Inorganic Materials
Coordination chemistry is the chemistry of metal atoms
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Oxidation catalysis on Pt and Au: complexity of simple chemistry
Promotor: J.W.M. Frenken Co-Promotores: I.M.N. Groot; L.B.F. Juurlink
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Explorations of Water Oxidation Catalysis in Explicit Solvent
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.
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Catalysis of the electrochemical water oxidation to oxygen
Promotor: M.T.M. Koper, Co-Promotor: F. Calle-Vallejo
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Towards a comprehensive and predictive theory of catalysis based on simple structure-activity relations
Can we tailor catalysts at the atomic scale by means of high-school chemistry and geometry rules?
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Adsorption and catalysis on Pt and Pd monolayer-modified Pt single crystal electrodes
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.
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PhD candidate || Structure and dynamics in enzyme catalysis (1.0 fte)
Science, Leiden Institute of Chemistry (LIC)
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Marc Koper receives the Netherlands Catalysis and Chemistry Award
During the 20th anniversary meeting of the Netherlands' Catalysis and Chemistry Conference, Marc Koper received the Netherlands Catalysis and Chemistry Award. ‘The ultimate candidate for the prize’, it says in one of the recommendation letters.
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Transmission electron microscopy on live catalysts
The dissertation describes TEM experiments on heterogeneous catalysts.
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Platinum electrochemistry through a magnifying glass
In most applications, electrocatalysts exhibit a large surface area to volume ratio, for example using nanoparticles.
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Mind the gap(s)! A surface science approach to catalysis?
Surface Reaction Barriometry: Methane Dissociation on Flat and Stepped Transition-Metal Surfaces.
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Dennis Hetterscheid
Science
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Ludo Juurlink
Science
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Surface-structure dependencies in catalytic reactions
Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink
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may substantially affect rate of reaction relevant to Haber-Bosch catalysis
Using N2 dissociation on Ru(0001) as a representative showcase (for catalysts employed in the Haber-Bosch process), we have shown for the first time that non-adiabatic effects can substantially reduce a molecule’s dissociation probability on a metal surface. These effects are currently completely unaccounted…
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Taking control of charge transfer: strategic design for solar cells
Promotor: Huub J.M. de Groot, Co-promotor: Francesco Buda
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Mechanistic studies of the water oxidation reaction with molecular iron catalysts
In this dissertation iron-based homogeneous catalysts were synthesized, characterized and investigated for water oxidation activity.
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CO2 reduction on post-transition metals and their alloys: an industrial approach
This thesis focuses on the synthesis, characterization and performance towards CO2 electroreduction of mono and bi-metallic particles based on p-block metals
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Lies Bouwman
Science
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Steps in gas-surface reactions
Heterogeneous catalysis is essential to many industrial applications. These catalysts are often comprised of supported nanoparticles, which contain various different surface sites.
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Accurate modeling of the dynamics of dissociative chemisorption on metal surfaces
Fundamental understanding of molecular reactions on metal surfaces is important for improving heterogeneous catalysis.
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Interstellar Catalysts and the PAH universe
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.
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Surface-structure dependence of water-related adsorbates on platinum
Promotor: M.T.M. Koper, Co-promotor: J.B.F. Juurlink
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Marc Koper
Science
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Richard van Lent
Science
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Irene Groot
Science
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Design of homogeneous water oxidation catalysts
To design the ideal water oxidation catalyst, understanding of the catalytic mechanism and decomposition pathways is essential.
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Heterogenized molecular (pre)catalysts for water oxidation and oxygen reduction
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.
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Irene Groot receives Vidi grant: looking at catalysts at atomic scale
Catalysts are indispensable in everyday life. We know what they do and more or less how they do it, but we still lack a fundamental understanding about their functioning at an atomic scale. Therefore, Irene Groot from the Leiden Institute of Chemistry develops new measuring techniques to unravel the…
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Development of homogeneous catalysts for the selective conversion of levulinic acid to caprolactam
Promotors: Prof.dr. E. Bouwman, Prof.dr. E. Drent
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Energy & Sustainability
Twenty years from now, the world population is estimated to be around 8.7 billion people, compared to the current 7.3 billion. In combination with the improvements in living standards and the corresponding growth in consumption, this will result in an enormous increase in the demand for food, consumables,…
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Contact
Contact Metals in Catalysis, Biomimetics & Inorganic Chemisrty
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Imaging complex model catalysts in action
From surface science towards industrial practice using high-pressure scanning tunneling microscopy.
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Iron complexes as electrocatalysts for the water oxidation reaction
In this dissertation, the synthesis and characterization of a series of iron complexes based on different ligand platforms are described.
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TA grant for Irene Groot
Chemist Irene Groot has been awarded a TA grant. Together with Shell, Leiden Probe Microscopy, DSM Resolve and Utrecht University, Groot will conduct research into catalysts for the production of raw materials and fuels.
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Research schools in chemistry
The Leiden Institute of Chemistry actively participates in several national research schools for MSc and PhD students. These schools are consortia that stimulate collaboration between research groups of the different participating Dutch universities. The research schools also offer advanced training…
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Research
Research at the Catalysis and Surface Chemistry group is comprised of the following research themes:
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The structure of a working catalyst: from flat surfaces to nanoparticles
Promotor: Prof.dr. J.W.M. Frenken
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Microscopy and Spectroscopy on Model Catalysts in Gas Environments
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.
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The role and analysis of molecular systems in electrocatalysis
Molecular complexes can be used as electrocatalysts for oxygen reduction, water oxidation, and/or hydrogen peroxide production.
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Unfolding secrets of catalysts
To construct catalysts that can produce fuels from CO2 innumerable times, we need to learn much more about how catalysis works. Irene Groot is conducting groundbreaking research into catalysis at the atomic level.
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Theoretical Chemistry
The main goal of the THEOR CHEM group, headed by Prof. Geert-Jan Kroes, is to characterize, and to accurately predict the outcome of chemical reactions at gas-solid and liquid-solid interfaces. Here the solid surface is typically a metal or an ice surface. These goals are important to many areas in…
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Group Discussions
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Research Schools
Many researchers of the Faculty of Science are members of a research school related to their area of expertise. Research schools aim at collaboration of researchers from different faculties in the same university (interfaculty schools) or in different universities (interuniversity schools).