570 search results for “critical metals” in the Public website
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Adsorption and catalysis on Pt and Pd monolayer-modified Pt single crystal electrodes
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.
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Teaching
Research training projects in the MCBIM group - Bachelor and master students of all chemistry related studies are more than welcome to take part in our research activities. We have various research projects, all in one way or another involving transition metal ions. Daily supervision in the laboratory…
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Photo-activation of ruthenium-decorated upconverting nanoparticles
Metal-based prodrugs based on ruthenium(II) polypyridyl complexes have proven to be very suitable for application in both photodynamic therapy (PDT) and photo-activated chemotherapy (PACT).
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PhD defence: critical reflections on law and the question of the animal
This project contemplates an ethics of difference and singularity that can effectuate a displacement of anthropocentrism and radical transformation in the way we understand and approach relationality across species borders. PhD defence on 16 December 2019.
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date! MAKING MATTERS Symposium 2020: Collective Material Practices in Critical Times
Join us at the second edition of the Making Matters symposium, which will take place on Friday 20 and Saturday 21 November 2020 at Het Nieuwe Instituut in Rotterdam and online.
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Criticism from Dutch civil servants about the Government's stance on war in Middle East
Two open letters are currently circulating among civil servants in the Netherlands calling for the Dutch government to take a different stance towards Israel. Wim Voermans, Professor of Constitutional and Administrative Law in Leiden, says in a national radio broadcast that this is an unusual and unique…
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Fighting tumours with light
Chemotherapy that does nothing until you irradiate it with light. Sylvestre Bonnet receives a Vici grant of 1.5 million euros for the development of this treatment. The Leiden chemist wants to build a new molecule to fight tumours that are at the time still difficult to treat.
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Exposure and health Assessment of Persistent Organic Pollutants (POPs) at e-waste recycling site among workers in the informal sector in Nigeria
Do e-waste workers display enhanced effects of adverse health effects due to informal e-waste processing in Nigeria? Is there a difference between the health outcomes of the exposed and the control groups? Are there difference in health effects within and between job groups (collectors, dismantlers,…
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Gerrard Boot on criticism of bridging measure for self-employed
The Dutch temporary bridging measure for self-employed professionals (known as Tozo) was set up to help Dutch self-employed professionals who are experiencing financial difficulties due to the Covid-19 pandemic. Last week, the ombudsman announced an investigation into the scheme for the self-employed.…
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The globalisation of language in popular music lyrics: A critical approach.
On 7 March, Carlos Roos (lecturer, philosopher, researcher) gave a talk about popular music at Utrecht University, organized by the education committee of Study Association Hucbald (Musicology at Utrecht University).
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Alumni
Former PhD, Bachelor and Master students of the Van Exter Lab
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Postdoc: Reactive scattering with electronic friction
Science, Leiden Institute of Chemistry (LIC)
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A peek inside art objects: new algorithm makes CT scan more accessible
An X-ray scanner, some small metal balls, and a newly developed algorithm. That is all you need to make a 3D model that enables you to look inside art objects without dismantling them. Thanks to the research of Francien Bossema (Centrum Wiskunde & Informatica and Leiden Institute of Advanced Computer…
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On the Emergence of the Energy Transition
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.
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Catalysis and Surface Chemistry
In the Catalysis and Surface Chemistry group, we investigate how catalysis works on the molecular level. The group is divided in six subgroups, focusing on different aspects of heterogeneous catalysis, homogeneous catalysis and electrocatalysis.
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Surface Reactivity of Activated CO2 Selective use of energy in splitting CO2
Juurlink
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Francesco Ragazzi
Faculteit der Sociale Wetenschappen
f.ragazzi@fsw.leidenuniv.nl | +31 71 527 2727
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Colloquium: Polymeric heterogeneous water oxidation catalysts with molecular metal sites
Lecture
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International Resource Panel
Contributions to the UNEP international panel for sustainable resource management
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Holographic Duality in Condensed Matter Physics
The physics of black holes appears to be as far removed from the physics of electrons in metals as it can be.
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Toxicity, bioaccumulation and trophic transfer of engineered nanoparticles in the aquatic environment
The findings in this thesis improve the understanding of 1) the relationship between exposure characteristics and toxicity of ENPs, 2) the joint toxic action of ENP mixtures and the comparison to metal salt mixtures, 3) how NOM affects the individual and joint toxicity of ENPs, 4) the extent of trophic…
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Our technology: Cathodic Corrosion Method (CCM)
Cathodic corrosion for producing nanoparticles was (re)discovered when trying to control the electrochemical etching of a scanning tunneling microscopy (STM) tip.
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Towards superconducting spintronics with RuO2 and CrO2 nanowires
CrO2, a half-metal ferromagnet, has shown great promise for superconducting spintronics applications for nearly two decades.
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Opening of Academic Year on sustainability: optimism and criticism go hand in hand
The theme of the Opening of the Academy Year on 4 September was sustainability and how the university could take the lead as a change agent. How is it going about this and what else can it do? There was also room for a critical note.
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Spin Transport and Superconductivity in Half-metallic Nanowires and Junctions
PhD defence
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Colloquium: Theoretical studies of the structure and catalytic activity of metal nanoclusters
Lecture
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Virtuous suffering: New perspectives on the Ethics of Suffering for Critical Global Health and Justice
Can suffering be positive? Currently dominant discourses, primarily voiced through human rights activism and humanitarianism, maintain the opposite: suffering, mentally and physically, has to be avoided and where it exists, it has to be reduced.
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‘You want to train doctors who will keep asking critical questions’
Determined, innovative lecturers are the driving force behind our teaching. Alexandra Langers, a specialist in gastroenterology and hepatology at the LUMC, is an active educator, both within and outside the hospital. She passed the Senior Teaching Qualification at the end of last year. ‘I want to cultivate…
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Critical of the risks: research into the experiences of military observers
For his PhD, historian and army major Dion Landstra researched the effectiveness of observers in peace operations in the Balkans between 1991 and 1995. What risks are acceptable for bringing about and maintaining peace? Landstra will defend his PhD on 28 September.
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Common Market Law Review Editorial Board critical of Brexit referendum campaign
Statement from the Editorial Board of the Common Market Law Review regarding the UK Brexit referendum campaign:
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MICA – Material Intelligence Capacity Analysis
Can we develop a platform for raw materials intelligence?
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Life after the Grand Jamboree: Wrapping-up iGEM
‘A challenging rollercoaster, but also a very bonding and insightful experience,’ that’s how the team of iGEM Leiden 2022 wraps up their participation in the iGEM contest. The contest for synthetic biology climaxed during the Grand Jamboree in Paris. The team ended up in the top 10 of over 360 teams…
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Real-time foresight: preparedness for dynamic innovation networks
Promotor: H.J. van den Herik, B.R. Katzy, Co-promotor: K. Sailer
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MCBIM Colloquium: Metal-Modified Nucleic Acids: From Silver(I)-Mediated Base Pairs to Phosphorescent Platinum(II)-Bearing DNA
Lecture
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Elena Paskaleva
Faculty of Humanities
e.g.paskaleva@hum.leidenuniv.nl | +31 71 527 1692
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Paula Harvey
Faculty of Humanities
p.j.harvey.2@umail.leidenuniv.nl | +31 71 527 2727
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Research
Research at the Macromolecular Biochemistry group is comprised of the following research themes:
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A smarter approach to energy and raw materials
Over the past century, the world population has grown exponentially, as has our need for energy and raw materials. If we wish to continue to live prosperously in the future, we have to radically restructure our economy and consumption. Scientific research shows us how to do this.
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A smarter approach to energy and raw materials
Over the past century, the world population has grown exponentially, as has our need for energy and raw materials. If we wish to continue to live prosperously in the future, we have to radically restructure our economy and consumption. Scientific research shows us how to do this.
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Prior Research
The van Exter group has an extensive history of prior research in classical and quantum optics. As former part of the group of Han Woerdman, we have studied topics as diverse as:
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CO2 reduction on post-transition metals and their alloys: an industrial approach
PhD defence
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Fundamental Research in Chemical Biology
Chemical biology research at the Leiden Institute of Chemistry is aimed at understanding biological processes at the molecular level to strengthen the knowledge base of human health and disease. The approach to achieve this goal is a fundamental chemical one; with the aid of chemical probes biological…
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Fighting cancer with light (and a drug that self-assembles into nanoparticles)
Chemotherapy that does not harm the body, but effectively fights cancer cells: that is the goal of chemist Sylvestre Bonnet and his team. During his PhD research, chemist Xuequan Zhou brought that goal a little closer. He developed molecules that, upon injection in the bloodstream, self-assemble into…
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Fluorescence Correlation Spectroscopy on Electron Transfer Reaction: Probing Inter- and Intramolecular Redox Processes
Promotores: G.W. Canters, T.J. Aartsma
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Feeding the Byzantine City
The Archaeology of Consumption in the Eastern Mediterranean (ca. 500-1500)
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Scattering and absorption in 2D optics
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.
- Martina Huber Lab - EPR Group
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Electrocatalysis for sustainable energy
Marc Koper’s research focuses on electrocatalysis and electrochemical surface science for sustainable energy and chemistry. Reactions of interest are the redox reactions of the oxygen/hydrogen cycle (water oxidation, hydrogen evolution), the carbon cycle (reduction of carbon dioxide, oxidation of small…
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Nanomaterial safety for microbially-colonized hosts: Microbiota-mediated physisorption interactions and particle-specific toxicity
The external tissues of plants and animals are colonized by microbial communities termed microbiota. When organisms are exposed to environmental pollutants, these substances will therefore encounter microbiota at the exposure interface.
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Highly Efficient Activation of HCl Dissociation on Au(111) via Rotational Preexcitation
The probability for dissociation of molecules on metal surfaces, which often controls the rate of industrially important catalytic processes, can depend strongly on how energy is partitioned in the incident molecule. There are many example systems where the addition of vibrational energy promotes reaction…