813 search results for “catalysis surface” in the Public website
-
Research
Research at the Catalysis and Surface Chemistry group is comprised of the following research themes:
-
Operando research in electrochemistry
The central theme of Rik Mom’s research group is to identify what the electrode-electrolyte interface looks like when electrocatalysis is taking place. Using specialized forms of Raman and X-ray spectroscopy, we study the chemical state and bonding environment of the electrode surface and near-surface…
-
Transmission electron microscopy on live catalysts
The dissertation describes TEM experiments on heterogeneous catalysts.
-
Palladium-catalyzed carbonylative synthesis of carboxylic acid anhydrides from Alkenes
Hydrocarbonylation of alkenes with carboxylic acids in synthesis of carboxylic acid anhydrides is relatively less explored. We herein present a study and optimization of a palladium-catalyzed hydrocarbonylation reaction of alkenes using carboxylic acids as the nucleophile, by which acid anhydrides can…
-
Will this discovery help us develop better catalysts?
Where exactly on the surface of a catalyst do the chemical reactions occur? Until now, it has always been a challenge to identify the exact locations of these ‘active sites’. In a new article in Nature, Leiden chemists helped their international colleagues reveal new insights into this issue. Their…
-
Nanoparticles
Leiden University has developed a radically different method for large scale production of diverse nanoparticles and their alloys.
-
The electrochemical reduction of dioxygen and hydrogen peroxide by molecular copper catalysts
The electrochemical oxygen reduction reaction (ORR) is an essential half-reaction for the utilization of hydrogen as a sustainable fuel, via the conversion of hydrogen to electrons and protons facilitated by the ORR. In the most common fuel cells, the ORR is requires high loadings of non-abundant platinum…
-
Kinetic and Non-Kinetic Effects for the Alkaline Oxygen Evolution Reaction on NiFeOOH Electrocatalysts
Green hydrogen is produced via a process called water electrolysis. During electrolysis water is split into oxygen and hydrogen.
-
Operando Spectro-electrochemical investigations of Pt and Pt-alloys as Fuel Cell Catalysts
The overall theme of this thesis is to complement the electrochemical data acquired in fuel cell research with in situ X-ray photoelectron spectroscopy (XPS) and soft X-ray absorption spectroscopy (XAS).
-
Getting the electrons right for O2-on-metal systems
This thesis studies theoretical surface chemistry within the field of heterogeneous catalysis.
-
Going accurate for molecule – metal surface interactions
Researchers from the THEOR CHEM group at Leiden University strive to set new benchmarks in the accuracy of the prediction of interaction energies between molecules and metal surfaces.
-
Leiden Institute of Chemistry
The Leiden Institute of Chemistry (LIC) is the basis for research and collaborations of the Leiden chemistry groups. Chemistry is the central science enabling a healthy future in a sustainable society. Chemistry researchers at Leiden University take a fundamental approach in finding tailored solutions…
-
Tycho RoordaFaculty of Science
-
Skin Deep? Reading the Surfaces of the Body in Ancient Greek Literature and Science
The skin has recently gained attention within body studies for its many specific cultural and social associations, in addition to its biology. This project aims to examine the different layers of meaning and the functions invested in the skin in ancient Greece: how did ancient Greek literary and medical…
-
Fat-free mayonnaise thanks to manipulation of surface tension
Aqueous solutions of proteins and carbohydrates separate into two parts with an extremely ‘soft’ boundary surface. The surface tension between these two parts can be manipulated, for example by adjusting the pH balance. This can be used to develop emulsions of a water-based solution in another aqueous…
-
Dennis HetterscheidFaculty of Science
-
Experiments on CHD3 + Pt(111): New Insights into a Prototypical Gas–Surface Reaction
The dissociative chemisorption of methane on metal surfaces is of fundamental and practical interest, being a rate-limiting step in the steam reforming process. The reaction is best modeled with quantum dynamics calculations, but these are currently not guaranteed to produce accurate results because…
-
Poprhyrin-based metal-organic frameworks for the electrochemical oxygen reduction reaction
Hydrogen peroxide (H2O2) is an important bulk chemical that is used in various industrial processes. More than 95% of the H2O2 used in industry is made via the anthraquinone process during which a large amount of energy is going to waste.
-
Organisation
Research and education at the Leiden Institute of Chemistry is overseen by the Institute Board. The Board and representatives of the two research themes form the Management Team. The Scientific Council (WERA), the Institute Council (I-Raad) and the platform for PhDs and post-doctoral co-workers (LIC73)…
-
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…
-
Linfan ShenFaculty of Science
-
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…
-
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…
-
Probabilities for Highly Activated Reaction of Polyatomic Molecules on Surfaces Using a High-Dimensional Neural Network Potential: CHD3 + Cu(111)
An accurate description of reactive scattering of molecules on metal surfaces often requires the modeling of energy transfer between the molecule and the surface phonons. Although ab initio molecular dynamics (AIMD) can describe this energy transfer, AIMD is at present untractable for reactions with…
-
Research
The chemical industry must continue to innovate for a more sustainable, healthier society. The reseachers from the Leiden Institute of Chemistry (LIC) contribute by applying their knowledge to themes such as sustainability, energy and health.
-
Marc Koper wins Carl Wagner Memorial Award 2013
Chemist Prof. Marc Koper was awarded the Carl Wagner Memorial Award of the Electrochemical Society.
-
Conversion of renewable raw materials on platinum shows unexpected behaviour
The electrochemical reduction of a group of organic compounds on platinum is strongly dependent on the arrangement of the atoms in the platinum surface. Christoph Bondue, postdoc in Marc Koper's group, published this in Nature Catalysis on 4 March. The reduction of such compounds is an important process…
-
Aude SalaméFaculty of Science
-
Saeid BehjatiFaculty of Science
-
Wentian FuFaculty of Science
-
Dana RademakerFaculty of Science
-
Kate VannoyFaculty of Science
-
Katharina Doblhoff-DierFaculty of Science
-
Sheena LouisiaFaculty of Science
-
Selwyn HanselmanFaculty of Science
-
Jan FingerhutFaculty of Science
-
Marleen HoefnagelFaculty of Science
-
Rafaël VosFaculty of Science
-
Steffen HardtFaculty of Science
-
Isabel PantenburgFaculty of Science
-
Hao YangFaculty of Science
-
Bonho KooFaculty of Science
-
Melina VavaliFaculty of Science
-
Rifael Zvi SolFaculty of Science
-
Marius SpallekFaculty of Science
-
Rishabh BasrurFaculty of Science
-
Shitha KorachamkandyFaculty of Science
-
Promotional video for LMCat project released
The European FET-Horizon2020 LMCat project of Dr. Irene Groot has released a promotional video showing the role graphene could play in our daily lives, how LMCat's production technique works, and how the consortium is capable of taking graphene production to the next level.
-
Marinka de WilligenFaculty of Science
-
Syed ShahFaculty of Science