Plants and soils from natural ecosystems harbor great diversity of soil microorganisms, which could potentially contribute to the sustainability of horticulture. The knowledge about using wild plant species and soil from natural ecosystem to improve the crop health will advance the application of ecological…

To meet the rising demand for minerals driven by the global shift to clean energy technologies, ensuring responsible and resilient supply chains is critical. Minerals like cobalt, lithium, and nickel for batteries, neodymium and zinc for wind turbines, and indium for solar panels are essential.

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…

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.

The main research question of this thesis was: Can nitrogen cycling on dairy farms on peat soil in the Dutch Green Heart area be improved by adapting management to the nitrogen supply from soil and by using other grassland species and crops without affecting milk production?

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…

Promotor: E. Bouwman, Co-Promotor: S. Bonnet

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

Constraint multi-objective optimization with a limited budget for function evaluations is challenging. This thesis tackles this problem by proposing new optimization algorithms. These algorithms are applied on holistic ship design problems. This helps naval architects balance objectives like cost, efficiency,…

The long-held desire - to link structure directly to function and to explain molecular mechanisms based on basic chemical or physical principles - is finally coming closer, satisfying not only our scientific curiosity but also offering new solutions to the many challenges in the field of health, energy…

Human civilization consumes a huge amount of fossil fuels, which has resulted in an atmospheric CO2 level which has not been higher in over 800 millennia.

Despite the history of studies on methanol formation from CO2, the dominant elementary reaction steps that constitute the chemical mechanism for this catalyzed process are not determined.

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.

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.

Food waste is a defining inefficiency of the modern food system, with profound implications for resource use, climate change, and circular economy transitions. This dissertation examines food waste through two complementary lenses: the prevention of avoidable food waste and the valorization of unavoidable…

Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…

With increasing carbon dioxide levels in the atmosphere and their detrimental effect on the global climate, modern society needs to push for more renewable energy sources. Storing widely accessible and abundant solar energy in chemical bonds in the form of molecular fuel via artificial photosynthesis…

Metals surfaces form a group of effective catalysts for the reaction of small molecules such as hydrogen (H2).

The development of new environmentally sound technologies is seen as a key route towards achieving sustainability.

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

Het Instituut Culturele Antropologie en Ontwikkelingssociologie is één van de vijf onderzoeksinstituten van de Faculteit der Sociale Wetenschappen. Het instituut is gewijd aan kwalitatief hoogwaardig en interdisciplinair onderzoek en onderwijs met betrekking tot globale cultuur en ontwikkelingsvraag…

De Honours Academy biedt extra ontwikkelmogelijkheden aan studenten en docenten van de Universiteit Leiden.

Verloren lading op zee moet worden beschouwd als milieuvervuiling en informatie hierover moet openbaar worden gemaakt, maar dat gaat niet altijd goed.

Leiden University College The Hague (LUC) biedt een 3-jarige bacheloropleiding aan waarin je je focust op Global Challenges; grote uitdagingen waar de mensheid mee te maken heeft: Vrede & Rechtvaardigheid, Diversiteit, Duurzaamheid en Welvaart. Je hebt ruimte om de opleiding zo in te richten als je…

Het Leiden Advocacy Project on Plastic (LAPP) is een pro bono initiatief aangaande juridische vraagstukken omtrent plastic. LAPP is opgericht om het toenemende probleem van plasticvervuiling aan te pakken en onderzoek te doen naar juridische kwesties gerelateerd hieraan. Studenten werken hierbij als…

Het is zover: LUGO mag eindelijk de winnaar van de Sustainability Award 2020 bekend maken!

Wij bestuderen de dagelijkse praktijk van individuen, groepen en gemeenschappen - zowel in Nederland als wereldwijd - om ze te plaatsen binnen de complexe processen van sociale en globale ontwikkeling. In Leiden zijn we gespecialiseerd in de gevolgen van globalisering op het gebied van milieu, sociale…

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.

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.

Promotores: Prof.dr. H.J.M. de Groot, Prof.dr. J. Matysik (Universitaet Leipzig)

Promotor: Prof.dr. E. Bouwman, Co-promotor: S. Bonnet

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.

Ben jij een nieuwsgierige en enthousiaste student en wil je meer naast je studie doen? Dan is het honoursonderwijs misschien wel iets voor jou.

Promotor: Prof.dr. G.R. de Snoo

Ruim 30 leden van Opleidingscommissies, Faculteitsraden en Universiteitsraad kwamen op 27 november online bijeen met als missie: hoe kan universitaire medezeggenschap werken aan een duurzamere universiteit in onderwijs, onderzoek en bedrijfsvoering? Het Leiden University Green Office en de Universiteitsraad…

Het Instituut Bestuurskunde van de Universiteit Leiden vormt vanuit Den Haag een brug tussen wetenschappelijk onderzoek en de praktijk.

Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia

Climate change is a challenge for both current and future generations. New biological resources have to be developed in order to meet the demand for energy as well as the demand for food.

As a virtually inexhaustible source, solar energy plays a major role in future global energy scenarios.

Promotor: Huub J.M. de Groot, Co-promotor: Francesco Buda

Promotor: Prof.dr. E. Bouwman, Co-Promotor: S. Bonnet

Leiden University College The Hague (LUC) biedt een 3-jarige bacheloropleiding aan waarin je je focust op Global Challenges; grote uitdagingen waar de mensheid mee te maken heeft: Vrede & Rechtvaardigheid, Diversiteit, Duurzaamheid en Welvaart. Je hebt ruimte om de opleiding zo in te richten als je…

In-use stocks of products can be considered as intermediaries between human needs and the physical world.

Studievoorlichting, Proefstuderen