Binnen onze faculteit vind je wetenschappers en studenten van het hoogste niveau. Op deze pagina kunt u de verschillende prijzen en beurzen bekijken die we in de loop der jaren hebben verzameld. Variërend van sportprestaties tot Spinozaprijzen. Van ERC-subsidies tot koninklijke onderscheidingen. Stuk…

Verschilt het taalgebruik van mannen met dat van vrouwen? Hoe leren kinderen hun moedertaal aan? Waarom verschilt de klinker in het woord schip van die in schepen? Hoe komt het dat een Spanjaard een Portugees makkelijker kan verstaan dan een inwoner van Spaans Baskenland? Zou je het Nederlands ook kunnen…

The goal of this thesis is to understand how interfacial parameters, such as the addition of organic additives, bulk pH or metal cations of the electrolyte, affect the relevant electrocatalytic reactions, i.e. electrochemical CO2 reduction reaction or hydrogen evolution reaction.

This dissertation focused on computational methods based on first principles calculations using the Density Functional Theory (DFT) framework. Emphasis was laid on affordable methods that can provide a tradeoff between computational expense and accuracy.

An objective of this research was to achieve direct, well-defined and non-rate-limiting electron transfer between respiratory enzymes and the electrode surface by means of 'Q-wires'.

Door haar activiteiten, draagt het Europa Instituut bij aan het begrip en de ontwikkeling van de snel evoluerende integratie in Europa.

This thesis comprises the development of reproducible synthesis procedures for two-dimensional materials (composed of boron, nitrogen and carbon) on different metallic surfaces.

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

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

In this thesis we have discussed several parameters that affect the electrochemical conversion of enviromentaly harmful molecules such as nitrates and carbon dioxide to more valuable and less deleterious compounds, in order to cast light onto the mechanism of the reaction to achieve an efficient and…

In eight chapters, the thesis of Rafaël Vos covers the effect of temperature and pressure on the electrochemical CO2 reduction.

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

n het voorjaar van 2022 verschijnt ‘Johan de Witt en het Rampjaar’, een bundel die speciaal is samengesteld voor dit herdenkingsjaar (het Rampjaar vond exact 350 jaar geleden plaats).

In this thesis, we consider various (electro)chemical phenomena at surfaces and nanoparticles and their underlying atomistic processes, which we studied using first-principles methods such as density functional theory.

In the traditional theory of linear elasticity, superposition dictates that the response of a material does not depend on the sequence of the applied mechanical actuations.

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

De sectie Klinische Psychologie is als volgt georganiseerd:

This thesis advance our understanding and the application of molecular catalysts relevant to the reduction of oxygen as well as reduction of nitrite.

Rembrandtroute ter gelegenheid van het 444-jarig bestaan van de Universiteit Leiden en het Rembrandtjaar 2019. Met speciale dank aan Germanisches Nationalmuseum (Neurenberg), The Leiden Collection (New York), Museum De Lakenhal (Leiden), Mauritshuis (Den Haag), Rijksmuseum/Musée du Louvre (Amsterdam/Parijs),…

Van de Spinozapremies die sinds 1995 zijn toegekend gingen er tot nu toe 29 naar Leidse wetenschappers.

Promotor: M.T.M. Koper, Co-promotor: L. Juurlink

Curved single crystals provide variable, but well-defined surface structures.

Cathodic corrosion is a relatively unknown phenomenon that can severely etch metallic electrodes at cathodic (negative) potentials.

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

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

Mechanical metamaterials are carefully engineered materials whose properties are controlled by their structure, not by their composition, which allows using metamaterials to study and control physical effects in detail⁠.

Voltammetry plays a crucial role in modern scientific research by offering valuable insights into the electrochemical properties of materials, with wide-ranging applications in fields such as materials science, energy storage, corrosion studies, and sensor development.

Het Institute of Security and Global Affairs (ISGA) is een wetenschappelijk instituut, gespecialiseerd in veiligheidsvraagstukken. Het ISGA is ingebed in de Faculteit Governance and Global Affairs van de Universiteit Leiden.

Carbon dioxide capture and utilization technologies are necessary to create a truly circular economy. The electrochemical reduction of carbon dioxide to formate is an appealing carbon utilization method as it can be performed at room temperature and pressure, it only requires two electrons, and it has…

Tin electrodeposition applications have rapidly evolved in the past 25 years.

Promotor: M.T.M. Koper, Co-promotors: A.I. Yanson, L.B.F. Juurlink

Hydrogen fuel cells are expected to be pivotal in the energetic transition towards renewable energy sources such as solar and wind power. However, their industrial scalability is severely hindered by the high cost and degradation rate of platinum catalysts, one of their key components. Addressing this…

Green hydrogen is produced via a process called water electrolysis. During electrolysis water is split into oxygen and hydrogen.

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).

In this thesis, we study different curved single crystals because of the diversity of surface structures across their curvature.

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

The role of the interfacial environment during electrochemical reactions has been increasingly valued, especially for those reactions involving protons or hydroxyl ions.

This thesis investigates reactive interfaces in surface science across three domains: heterogeneous catalysis, environmental nanoplastics, and two-dimensional materials.

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.

This work describes several studies into the electroreduction of carbon dioxide (CO2RR), both regarding mechanistical aspects and catalyst stability considerations. Mechanistic insights into carbon-carbon bond formation on a silver catalyst are described in Ch 2, were we find an acetaldehyde-like surface…

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.

Humanity stands at a pivotal juncture, facing the dual challenge of environmental sustainability and rapid population growth, projected to exceed 11 billion by century’s end.

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.

Op 1 april 2020 verdedigde Marc Broekema zijn proefschrift 'Cognitive Bias in the Judgment of Business Valuations and Valuators'. Het promotieonderzoek is begeleid door promotor prof. dr. J.I. van der Rest.

De afdeling Ondernemingsrecht en Financieel recht doet onderzoek op het terrein van onder meer het rechtspersonen- en vennootschapsrecht, het financieel verbintenissen- en aansprakelijkheidsrecht, corporate governance, duurzaamheid, het Nederlands en Europees financieel toezichtrecht, fusies en overnames,…

Electrocatalysis allows for storing electricity or converting it into chemical bonds, producing chemical building blocks and fuels using renewable resources.

The research presented in this thesis makes use of small molecules (as H2 , D2 and O2 ) on well-defined single crystal surfaces (flat Pt(111), flat Cu(211) and curved Pt(111)) to elucidate the role of surface structure and degrees of freedom in the reactant in specific surface reactions.

Dit boek bevat het rapport van het evaluatieonderzoek van de Wet homologatie onderhands akkoord (WHOA) uitgevoerd door een onderzoeksteam van de Rijksuniversiteit Groningen en de Universiteit Leiden in opdracht van het Wetenschappelijk Onderzoek- en Datacentrum (WODC). De WHOA geeft levensvatbare bedrijven…

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.