CERA (CErtification of RAw Materials) is a four-year project that will develop a standardized certification scheme ensuring environmental, social and economic sustainability in extraction, processing, trading and manufacturing of all mineral raw materials. It will guarantee traceability of certified…

Where and how are critical materials currently used and how can this information be used to develop scenarios about their future demand.

Wiskunde en Natuurwetenschappen, Centrum voor Milieuwetenschappen Leiden (CML)

Some examples of research questions include: What framework of circular strategies should local practitioners use? How should practitioners organize their monitoring of the circular economy activities in the region of interest? What are the main products that have the most circular potential in the…

A scenario building web-tool and knowledge package to enable multi-level decision making for the transition to the Circular Economy

Can we develop a platform for raw materials intelligence?

1) Assess the trends in supply and production status of these critical minerals and mineral products worldwide and Europe’s dependence including on intermediate products such as permanent magnets, RE based super alloys, batteries, polishing compounds, phosphors, catalysts etc. 2) Trace the entire value…

How can prospective LCA be streamlined in a way that its practical application in research and technology development increases?

The transition to electric vehicles (EVs) reduces vehicle emissions to combat climate change. EVs raise concerns regarding the production of lithium-ion batteries and related emissions; while batteries can also provide energy storage services for the electricity system.

What are the flows of C&DW (e.g. bricks, concrete, gypsum and wood) in the case study countries ? How to define the specification for each material to be quantified? What indicators should be used to identify the pattern of each C&DW management system? How to interpret the MFA results in relation…

Wat is mechanica van zachte materialen (o.a. schuim, zand)?

A sustainable resource management is an essential aspect to satisfy the current human needs without compromising the needs of future generations.

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

Promotores: Prof.dr.G.R. de Snoo and Dr. R. Heijungs

Het consortium RawMatTERS, waar de Universiteit Leiden deel van uitmaakt, heeft de ‘Knowledge and Innovation Communities (KIC) Raw Materials’ gewonnen. Deze prijs is bestemd voor innovatief onderzoek naar grondstoffen.

De wereldbevolking is in de afgelopen eeuw exponentieel gegroeid, en daarmee ook onze behoefte aan energie en materialen. Willen we in de toekomst ook in welvaart leven, dan zullen we onze economie en consumptie radicaal anders moeten inrichten. Wetenschappelijk onderzoek laat zien hoe dat kan.

De wereldbevolking is in de afgelopen eeuw exponentieel gegroeid, en daarmee ook onze behoefte aan energie en materialen. Willen we in de toekomst ook in welvaart leven, dan zullen we onze economie en consumptie radicaal anders moeten inrichten. Wetenschappelijk onderzoek laat zien hoe dat kan.

Geometric phases lead to a nontrivial interference result when an electron's different quantum mechanical paths choices encircle a magnetic coil in an Aharonov-Bohm experiment.

An account of the total of material flows going in, out and through Amsterdam.

The role of material production as a driver of environmental impacts is increasing, which calls for a better understanding of global material flows. This thesis explores the role of in-use stocks of products, buildings and infrastructure as a key driver of global material demand and discusses the implications…

In this Ph.D. thesis we study the interaction of low energy electrons with thin materials, namely layered materials (graphene, hexagonal boron nitride, molybdenum disulfide) and organic films. At these low energies the quantum mechanical wavelength of the electron wave function is in the order of a…

Self-assembly is an abundant process in nature and is vital to many processes in living organisms.

In this thesis, time-lapse fluorescent microscopy plays a pivotal role in investigating functional materials within living cells as well as the migratory behaviour of neural progenitor cells.

This dissertation investigates the energy and material related impacts of the transition towards a low-carbon heating system in the Netherlands, in the context of its 2050 climate and circular economy policy goals.

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

The studies in this thesis are focused on the physical effects in the flat band materials. The results contain the discovery of strong enhancement of RKKY spin-spin interactions with specific geometric arrangement and dynamical generation of excitonic order parameter with high magnitude.

A new type of tripodal squaramide-based supramolecular hydrogels is developed and studied.

Promotors: Prof.dr. J. Zaanen, Prof.dr.ir. H. Hilgenkamp

This thesis described the development of novel scanning tunneling microscopy techniques to investigate strongly correlated electronic states in quantum matter.

Wat zijn de belangrijkste thema's in het uitvoeren van systemen voor bio-energie ?

Promotor: G.J. Kramer Co-Promotor: E.G.M. Kleijn

We find ourselves in an era of transition, not just towards a more computing- and data-driven society but also away from unsustainable fossil fuels as an energy source.

n this PhD thesis, the recombination of different atomic lattices in stacked 2D materials such as twisted bilayer graphene is studied. Using the different possibilities of Low-Energy Electron Microscopy (LEEM), the domain forming between the two atomic layers with small differences is studied.

In the current global context, there is a pressing need to address sustainable energy supplies to safeguard our Planet and its ecosystems. The choices made by human society have a significant impact on genetic evolution and climate.

Integrating life cycle assessment (LCA) with life cycle costing (LCC) offers the opportunity to simultaneously analyze the environmental and economic aspects of product alternatives, for the integration of which a unified computational has been proposed by Heijungs et al. (2013) [1]. The project aims…

Kieltyka

The work in this thesis demonstrates how to obtain an atomic-scale picture of a diverse set of complex surface structures observed using STM, under disparate conditions.

Afhankelijk van de omstandigheden kunnen korrelige materialen zoals zand verschillende vormen aannemen. Hoe komt deze verandering en het uiteenvallen van deze materialen tot stand? Natuurkundige Corentin Coulais ontwierp een model om de geheimen achter dit fenomeen te ontrafelen. Op 7 november verscheen…

Natuurkundigen van de Universiteit Leiden en Stichting FOM hebben een manier gevonden om de eigenschappen van 'slimme', door de mens ontworpen materialen beter te begrijpen. Hun methode onthult hoe op elkaar gestapelde laagjes in zo’n materiaal samenwerken om het geheel tot een hoger niveau te tillen.…

Op Dinsdag 10 Maart 2015 - 10h zal Ernst Worrell, professor aan de Universteit Utrecht met een leerstoel op

De studie van oude materialen en de manier waarop ze gemaakt zijn, levert baanbrekende inzichten in het verleden op. Bovendien is het samenspel tussen mensen en materialen voor onze huidige maatschappij zeer relevant, betoogt Ann Brysbaert, hoogleraar 'Ancient Technologies, Crafts and Materials' bij…

Materialen zijn gasvorming, vloeibaar of vast, afhankelijk van de manier waarop hun moleculen reageren op temperatuur en druk. Maar wat als de bouwstenen zelf-draaiende deeltjes zijn in plaats van gewone moleculen? Theoretisch natuurkundigen hebben ontdekt wat de fase bepaalt van die kunstmatige materialen.…

Martin van Hecke krijgt een ERC-onderzoekssubsidie van 2,5 miljoen euro voor onderzoek van zijn groep naar materialen die informatie verwerken. Een plakje rubber dat tot tien kan tellen is er al.

Martin van Hecke publiceerde een artikel in Nature samen met natuurkundigen van AMOLF en de UvA. Ze hebben metamaterialen ontwikkeld die uit zichzelf opvouwen, zelfs in meerdere stappen. Van Hecke verscheen in de volgende media:

In unconventional high temperature superconductors, supercurrent vortices are known to spoil the Landau levels. In this thesis the emergence of Landau levels is studied in different types of superconductors: Weyl superconductors, and the Fu-Kane heterostructure.