51 search results for “catholijn corrosion” in the Public website
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Cathodic corrosion
Cathodic corrosion is a relatively unknown phenomenon that can severely etch metallic electrodes at cathodic (negative) potentials.
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Catholijn Jonker
Science
c.m.jonker@liacs.leidenuniv.nl | +31 71 527 7115
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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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Cathodic corrosion: devastating but predictable
An indian stepwell on a nanoscale. That is what postdoc Nakkiran Arulmozhi calls the pattern he saw when he corroded a special kind of platinum crystal. The unique images show the destructiveness of the process, but also show how predictable it is.
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Aske Plaat and Catholijn Jonker at BNR De Nieuwe Wereld
In the BNR Newsradioprogram De Nieuwe Wereld, professors Aske Plaat (Data Science) and Catholijn Jonker (Explainable AI) of the computer science institute of Leiden University discuss about decisions made by computers. From self-driving cars to intelligent soap pumps: should we be able to follow the…
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Insights into the mechanism of electrocatalytic CO2 reduction and concomitant catalyst degradation pathways
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…
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Cracking the code: why platinum electrodes corrode
An atomic vandal has finally been caught! Scientists from Leiden University and the Department of Energy’s SLAC National Laboratory have uncovered the mysterious cause behind the rapid corrosion of platinum electrodes. This breakthrough paves the way for more affordable green hydrogen production and…
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Observing what cannot be observed: computational electrochemistry from carbon to hydrogen
In this thesis, we consider various (electro)chemical phenomena at surfaces and nanoparticles and their underlying atomistic processes, which we studied using first-principles methods such as density functional theory.
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Nanoparticles
Leiden University has developed a radically different method for large scale production of diverse nanoparticles and their alloys.
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Fundamental research on the voltammetry of polycrystalline gold
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.
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Electrochemical and surface studies of the effect of naphthalene-based additives on tin electrodeposition
Tin electrodeposition applications have rapidly evolved in the past 25 years.
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Risks to Health and the Environment Related to the Use of Lead in Products
The aim of this project was to estimate emissions from lead products-in-use for the past, the present and the future and assess the development of toxicological risks associated with these products.
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The International Civil Service: Redefining Its Independence
On 18 April, Alexandre Tavadian defended the thesis 'The International Civil Service: Redefining Its Independence'. The doctoral research was supervised by Niels Blokker and Brian McGarry.
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Imaging complex model catalysts in action
From surface science towards industrial practice using high-pressure scanning tunneling microscopy.
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The Hybrid Intelligence Centre
Hybrid Intelligence (HI) is the combination of human and machine intelligence, expanding human intellect instead of replacing it. HI takes human expertise and intentionality into account when making meaningful decisions and perform appropriate actions, together with ethical, legal and societal values.…
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Operando research in electrochemistry
The central theme of Rik Mom’s research group is to identify what the electrode-electrolyte interface looks like when electrocatalysis is taking place. Using specialized forms of Raman and X-ray spectroscopy, we study the chemical state and bonding environment of the electrode surface and near-surface…
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Media & interaction
Media & interaction is where artificial intelligence and machine learning meet philosophy, cognitive science, and the creative arts. Examples of research questions in this domain are: 'Can an algorithm be creative by human standards?', 'Can creative processes, such as composing music or writing poetry,…
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Our people
Some examples of AI-research done at Leiden.
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Dick Stufkens Prijs 2019 awarded to electrochemist Thom Hersbach
The Dick Stufkens Prize 2019 for the best PhD thesis of the Holland Research School of Molecular Chemistry (HRSMC) will be awarded to Thom Hersbach. In his thesis, Hersbach presents a thorough analysis of cathodic corrosion. His comprehensive research, on which he graduated with the distinction cum…
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Gravitation Grant for combining human and artificial intelligence
The project Hybrid Intelligence receives 19 million euros from the Gravitation programme of the Dutch Research Council (NWO). The consortium consists of six Dutch universities and combines human and artificial intelligence, aiming to amplify human intelligence instead of replacing it. Leiden professors…
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Awards and Grants 2019
An overview of awards and prizes granted to our staff and students in 2019, as well as special appointments and royal distinctions.
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Ancient Charm
The aim of ANCIENT CHARM was to develop neutron-imaging techniques and the associated equipment, and help establish neutron imaging as a mainstream archaeological analytical technique. In particular, one of the goals was a new imaging technique which called neutron resonant capture imaging combined…
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White paper: we can’t just let smart cities happen
In a new Leiden-Delft-Erasmus Universities white paper, researchers and practitioners start the conversation that society desperately needs to have. ‘We’ve outsourced the visionary thinking to tech companies.’
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Two cum laude distinctions for storing renewable energy
Both Leon Jacobse and Thom Hersbach from Marc Koper's research group obtained their PhDs cum laude. They both investigated changes on the surface of a platinum electrode. Jacobse studied this at a positive voltage, Hersbach at a negative voltage. Platinum has the potential to convert renewable energy…
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Ethics: how selfless should a self-driving car be
Intelligent machines are going to make ethical decisions too. Should a self-driving car be allowed to slam into pedestrians to save its passengers from a head-on collision? Should a negotiation app be able to detect stress in your opponent’s voice? And who makes these decisions: the user, the system’s…
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Previous SAILS Workshops
SAILS likes to occasionally organise workshops about topics that relate to our programme. On this page you can find more information about previous workshops.
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First SAILS Symposium 'The future of AI is human': a photo impression
On October 14, the first symposium of the university-wide initiative SAILS took place. Scientists from Leiden University and other Dutch universities came together to share their enthusiasm and expertise in the field of Artificial Intelligence in a festive symposium, in the atmospheric Museum of Eth…
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The Secular Outlook
The Secular Outlook describes what moral and political secularism means. It paints the image of a world view in which state and religion are kept well separated.
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A puzzle of sherds
Past objects offer a wealth of information about life in earlier times. Loe Jacobs is an expert in making earthenware objects, using the same methods and means used in earlier times.
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AI Lab launched for effective and responsible supervision
How can you increase the effectiveness of inspectors using responsible artificial intelligence (AI)? This is the question the Innovation Center for Artificial Intelligence (ICAI) Lab AI4Oversight is tackling. By developing algorithms and methods, they try to provide optimal support for, for example,…
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Michiel van der Meer
Science
m.t.van.der.meer@liacs.leidenuniv.nl | 071 5272727
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Artificial Intelligence & Machine Learning
Computers are capable of making incredibly accurate predictions on the basis of machine learning. In other words, these computers can learn without intervention once they have been pre-programmed by humans. At LIACS, we explore and push the borders of what a revolutionary new generation of algorithms…
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Archive
View all our Alumni newsletters below.
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Maartje van der Woude speaks at Cleveringa Meeting Leiden 2020
All Leiden alumni, students and anyone else who might be interested is welcome to attend the online Cleveringa Meeting in Leiden on Wednesday 25 November entitled 'The Corrosion of International Relations'.
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Gravitation Grant for innovative outlook on the social and ethical challenges of new technology
Leading scientists in the field of the ethics and philosophy of technology are currently revising time-honoured key philosophical concepts such as autonomy, justice and responsibility, as these concepts are being challenged as a result of new technological developments. They receive 17.9 million euros…
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Coats, glasses and gloves, your last line of defense
Marie Curie once said: I have no dress except the one I wear every day. If you are going to be kind enough to give me one, please let it be practical and dark so that I can put it on afterwards to go to the laboratory.
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Documentary - Restoring the eleventh-century Arabic manuscript De Materia Medica
Water damage, old restorations and copper corrosion in some illustrations. De Materia Medica has been through a lot over the centuries. The manuscript dates from 1083 AD and is one of the oldest illustrated Arabic manuscripts in the world. Due to intensive use, De Materia Medica was no longer in good…
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Hall of Fame 2022
In 2022, many of our staff and students won fantastic prizes and were awarded important research grants.
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Artificial intelligence flourishing in Leiden, Delft and Rotterdam
Leiden University, Delft University of Technology and Erasmus University Rotterdam are important players in the world of self-learning machines that can work together with people. Moreover, the three have close ties in the field of AI and hope to further strengthen this collaboration in the future.…
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Leiden University & Elsevier Symposium on AI and Academic Publishing
Artificial Intelligence is likely to have far-reaching consequences for all actors in the realm of academic publishing, including authors, editors, researchers, and readers. This symposium aims to foster the conversation about the various ways in which we evaluate, enrich, and disseminate academic knowledge,…
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Three discoveries for cleaner and cheaper fuel
How can rare and expensive materials be used more efficiently to produce cleaner and cheaper fuel? Under the guidance of Marc Koper, Professor of Catalysis and Surface Chemistry, international teams of scientists have published 3 articles in Nature Communications.
- Symposium - The Future of AI is Human
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Leiden University involved in five Gravitation projects
Leiden University is involved in five new NWO Gravitation projects. Two relate to mental disorder and the remaining three to a healthy lifestyle, the combination of human and artificial intelligence, and the special relationship between plants and microbes.
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Intersecting Global Trends: antidemocracy and anti-environmentalism
VVI Research Meetings 2022-2023
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Van Marum Colloquium: Impedance analysis of electrochemical system: recent advances on the study of capacitive systems
Lecture
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The International Civil Service: Redefining Its Independence
PhD defence
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Fundamental Research on the Voltammetry of Polycrystalline Gold
PhD defence
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Van Marum Colloquium: Hexagonal and amorphous boron nitride thin films
Lecture
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Healthcare and population health: AI research in Leiden, Delft and Rotterdam
‘Our health is the area that stands to gain most from artificial intelligence.’ The three universities in Zuid-Holland are helping make these gains. Three researchers talk about their collaborative research into AI for health, drug discovery and healthcare in the AI knowledge cluster in Zuid-Holland.…
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Blog Post | From ‘Disinformation’ to ‘Information Disorder’: Changing the Narrative about Unwanted Communication
Disinformation has become a popular subject of study and debate. A plethora of publications and policies have emerged, aiming to analyse and curb the negative consequences of unwanted communication.