361 search results for “heterogeneous catalysis” in the Public website
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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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Transmission electron microscopy on live catalysts
The dissertation describes TEM experiments on heterogeneous catalysts.
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CO oxidation catalysis at multiple length scales
Promotor: J.W.M. Frenken, Co-Promotor: R. Felici
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Symposium 2023: Reaction mechanisms in heterogeneous, inorganic and biological electro(photo)catalysis
Conference
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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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Ludo Juurlink
Science
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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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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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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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Morphogenesis and heterogeneity in liquid-grown streptomyces cultures
The filamentous bacteria Streptomyces are widespread inhabitants of terrestrial soils.
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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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Richard van Lent
Science
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Electrocatalytic CO2 reduction toward liquid fuels : on heterogeneous electrocatalysts and heterogenized molecular catalysts
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.
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Heterogeneity in spores of food spoilage fungi
This project intends to provide the required knowledgebase for the design of novel mild intervention protocols to prevent fungal food spoilage.
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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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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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Surface-structure dependencies in catalytic reactions
Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink
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Understanding the Heterogeneity of Corporate Entrepreneurship Programs
In today's volatile market environments, companies must be able to continuously innovate. In this context, innovation does not only refer to the development of new products or business models but often also affects the entire organization, which has to transform its structures, processes, and ways of…
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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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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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hydrodynamics in relation to grazing, water quality and spatial heterogeneity
Consequences for sediment stability and seston trapping
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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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Genetic and environmental factors determining heterogeneity in preservation stress resistance of Aspergillus niger conidia
Fungal food spoilage often starts with a contamination with spores. Experimental data strongly indicate the existence of subpopulations of spores with different levels of resistance to preservation methods.
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Postdoctoral researcher in Catalysis and Surface Chemistry (1.0 FTE)
Science, Leiden Institute of Chemistry (LIC)
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Postdoctoral researcher in Catalysis and Surface Chemistry (1.0 FTE)
Science, Leiden Institute of Chemistry (LIC)
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Postdoctoral researcher in Catalysis and Surface Chemistry (1.0 FTE)
Science, Leiden Institute of Chemistry (LIC)
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Chemically Accurate Simulation of a Prototypical Surface Reaction: H-2 Dissociation on Cu(111)
Methods for accurately computing the interaction of molecules with metal surfaces are critical to understanding and thereby improving heterogeneous catalysis.
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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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FRESH Lecture: Transition metal clusters as model systems for heterogeneous catalysis
Lecture
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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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Solvent effects in the electrocatalytic reactions of water
Koper
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Less is more: reduced mycelial heterogeneity for improved production of enzymes and antibiotics
How can cell wall engineering approaches be used to improve streptomycetes for industry to make new antibiotics?
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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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Adiabatic Energy Loss in Hyperthermal H Atom Collisions with Cu and Au: A Basis for Testing the Importance of Nonadiabatic Energy Loss
Nonadiabatic energy transfer from the translational motion (T) of a molecule impinging on metal surface to the metal’s electrons may determine whether the molecule can lose enough energy to adsorb or react.
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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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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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Research
Research at the Catalysis and Surface Chemistry group is comprised of the following research themes:
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Chemists solve persistent problem after four decades
After almost four decades, Leiden and Eindhoven chemists have resolved the discussion about the correct model for the simplest chemical reaction in heterogeneous catalysis, which is essential for fuel cells. Using a unique curved platinum surface, Ludo Juurlink and PhD candidate Richard van Lent from…
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Invited speakers
Speakers that have accepted to participate:
- Unraveling the nature and the identity of the active sites in heterogeneous catalysis via structure-dependent microkinetic modeling
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Ab initio molecular dynamics calculations on reactions of molecules with metal surfaces
Promotor: Prof.dr. G.J. Kroes
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Kroese-Duijsters Symposium 2023
The Kroese-Duijsters Symposia aim to provide researchers from different fields and different career stages to meet in an informal setting, to stimulate discussions and to start new collaborations. The Kroese-Duijsters Symposia started in 2022 and we are pleased to invite you to the 2nd Kroese-Duijsters…
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Van Marum Colloquia
The "Van Marum Colloquia" are a collaborative lecture series between the LION and LIC institutes, focusing on fundamental and applied surface science.
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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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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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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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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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Platinum electrochemistry through a magnifying glass
In most applications, electrocatalysts exhibit a large surface area to volume ratio, for example using nanoparticles.