Wiskunde en Natuurwetenschappen, Leids Instituut voor Chemisch Onderzoek (LIC)

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

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

Promotor: Prof.dr. H.J.M. de Groot, Co-promotor: Francesco Buda

In this project innovative technology for photovoltaics cells is developed and analysis of ecological and health related risks are explicitly accounted for.

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…

The energy system is at the heart of two of the greatest challenges of the 21st century: decreasing CO2 emissions to meet the ambitions of the Paris agreement while fulfilling the growing energy demand associated with the economic aspirations of a growing world population.

Supervisor: S.F. Portegies Zwart Co-Supervisor: A.G.A. Brown

Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).

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.

The focus of this thesis is how stars like our Sun and planets like Jupiter, Saturn, and Earth are formed.

In this research I assess the impact of the recently discovered gas reserves south off Cyprus on the escalation of the Cyprus conflict.

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

Het Solar Fish-project van hoogleraar biofysische organische chemie Huub de Groot, krijgt een plaats in het Llowlab op popfestival Lowlands.

Onderzoek aan het Leids Instituut voor Onderzoek in de Natuurkunde (LION) is fundamenteel en nieuwsgierigheids-gedreven. Al onze wetenschappers delen de wens om de kennis van de wereld om ons heen te vermeerderen, in een open, nieuwsgierige sfeer, waarin innovatieve ideeën ontstaan die toepassingen…

Wiskunde en Natuurwetenschappen, Leids Instituut voor Chemisch Onderzoek (LIC)

Scattering of light in the presence of nano-structured materials, i.e. with features in the order of the wavelength of the light or smaller, reveals details of how light interacts with matter at the nanoscale.

What performance criteria does a new technology have to fulfill in order to be added to the list of future energy options and what constraints exist in terms of broad market penetration?

Lezing, This Week's Discoveries

What are the life-cycle environmental impacts and risks to human health and ecosystems of a III-V/Si PV system? How can these be expected to change when the system is deployed at industrial scale? What are the most favourable recycling scenarios?

Promotie

A remarkable population of short period transiting rocky exoplanets with equilibrium temperatures on the order of 2,000 K has recently been discovered.

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.

Examining if large scale application of new energy pathways can be constrained by materials and emissions.

What is the environmental impact, the human health impact and the life cycle and production costs of the lab, pilot and commercial diffusion of nanowires and nanowire-based photovoltaic technologies?

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

Organic molecules in interstellar space are important as they influence the structure of galaxies and star formations. Studying catalytic processes in space allows us to understand how molecular species are formed and chemically evolved in the interstellar medium and solar system objects.

The formation and evolution of galaxies is fundamentally driven by the formation of new stars out of cold gas.

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

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.

The growing demand of energy indicates that global energy resources in the form of fossil fuels will not be sufficient in the future. In order to solve potential future energy problems development of a sustainable hydrogen economy is highly desirable.

A century ago, it was unclear whether the stars in the sky were clustered in groups, or widely spread in the universe.

Planten, algen en bacteriën zetten zonlicht om in chemische energie. In een workshop van het Lorentz Center inventariseren onderzoekers de mogelijkheden om dit proces van fotosynthese te benutten en imiteren, met het oog op een duurzame brandstofvoorziening. De vrijdagmiddagsessie is openbaar.

Solar energy is used by photosynthetic organisms to drive energy required cellular processes. Is absorbed by two groups of pigments, located in the LHCs.

Solar energy harnessed by plants and algae has great potential to be converted into biofuels for future generations.

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

Promotores: Prof.dr. J. Schaye & Prof.dr. C. Steidel (California Institute of Technology)

Promotores: Prof.dr. F.P. Israel, Prof.dr. P.P. van der Werf

Promotie

Lezing, This Week's Discoveries

The thesis explores how interstellar chemistry evolves as a function of time and changing physical architectures during the formation of stars.

Hot astrophysical plasma is ubiquitous in the Universe, from comets in our Solar system to the largest scale structures -- the cosmic web filaments. These hot plasmas, with the temperature of a few millions of degrees, are often observed in the X-ray wavelength range.

Promotie

Examining the sustainability aspects of biotechnology, especially those related to the production of ethanol from biomass.

In this thesis chemical and physical processes in the ice mantles on interstellar dust grains are studied.

De stijging van de CO2 concentratie in de lucht neemt gestaag toe, met alle gevolgen van dien. Naast alle organisaties die zich bezig houden met het verminderen van de CO2 concentratie werkt de Universiteit Leiden op drie verschillende manieren aan het vergaren van fundamentele kennis met betrekking…