Scheikundigen en natuurkundigen samenbrengen om tot op de bodem uit te zoeken hoe elektrochemische processen op de kleinste schaal werken. Dat is het doel van het nieuwe Advanced Nano-electrochemistry Institute of the Netherlands, of kort: ANION. Het consortium ontvangt hiervoor een Zwaartekracht-subsidie…

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.

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.

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.

Bij juridisch bindende afspraken willen partijen zo min mogelijk onzekerheden over die afspraken. Toch kiezen partijen er soms bewust voor om specifieke onzekerheden in hun afspraken te verdisconteren. Daarmee worden deze afspraken dus een beetje 'onzekerder'.

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.

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.

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.

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

Sustainable energy from wind and solar is most readily available near the sea.

Although plant domestication has significantly altered crop genetics and phenotypes, its effects on the taxonomic and functional diversity of plant-associated microbiomes are not well understood.

De duurzame productie van waterstof kan mogelijk efficiënter door slim gekozen zout aan het proces toe te voegen. Onderzoekers van het Leids Instituut voor Chemisch onderzoek hebben in samenwerking met natuurkundigen van de Universiteit Twente ontdekt dat het type zout dat aanwezig is bij de productie…

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.

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.

Een overzicht van awards en prijzen die in 2021 zijn toegekend aan onze medewerkers en studenten, maar ook bijzondere benoemingen aan de Universiteit Leiden en andere instellingen.

In 2021 hebben veel van onze medewerkers en studenten mooie prijzen gewonnen en belangrijke onderzoekssubsidies binnengehaald. Traditioneel blikken we aan het einde van het jaar en bij de start van het nieuwe jaar terug op deze successen.

Er zijn veel studies waarmee je kunt instromen in de master Health, Ageing and Society! Veel gezondheidsgerelateerde opleidingen zijn direct toelaatbaar, maar je bent ook welkom met een andere studieachtergrond.

Het consortium Advanced Nano-electrochemistry Institute Of the Netherlands (ANION) krijgt een Zwaartekracht-subsidie van 23,6 miljoen euro voor onderzoek naar elektrochemische processen die van belang zijn voor de energietransitie. Daarnaast zijn er nog vier gehonoreerde consortia met een Leidse dee…

Niet het vernuft van de mens, maar materialen zijn de bron voor innovatie en vooruitgang. Dat concludeert archeoloog Maikel Kuijpers op basis van zijn onderzoek naar vakmanschap en materiaalbewerking in de Vroege Bronstijd.