News & Events
Experimental insights into anodic oxidation of hexafluoropropylene oxide dimer acid (GenX) on boron-doped diamond anodesA team of TU Delft researchers (Ivan Buijnsters, Arjan Mol and Diwakar Suresh Babu – now PhD student at Helmholtz-Zentrum Berlin) carried out an experimental study to investigate the degradation and defluorination efficiency of GenX using boron-doped diamond anodes in electrochemical advanced oxidation processes.
Nucleation kinetics of calcium oxalate monohydrate as a function of pH, magnesium, and osteopontin concentration quantified with droplet microfluidicsKidney stone formation is a global health problem with increasing prevalence. Stone formation is a physiochemical process involving crystallization of inorganic salts in the presence of biological constituents in the urinary tract.
Artur Schweidtmann wins a grant from the NWO Open Science Fund with the ChemEng KG - The Chemical Engineering Knowledge GraphArtur Schweidtmann (ChemE) has won a NWO Open Science Fund with his proposal for an open-source knowledge graph database for chemical engineering. His project is one of the 26 projects that were honoured by this call for the first time this year (and the only one from TU Delft). The "ChemEng KG" aims to accelerate process development in academia and industry.
New overview text on atomic layer deposition has been publishedRecently, a chapter on atomic layer deposition has been added to the Kirk-Othmer Encyclopedia of Chemical Technology of Wiley. It serves both as an introductory text to newcomers in the field, as well as a good source for more advanced practitioners of ALD.
Dr. Othon Moultos is featured as an Emerging Investigator in the Journal of Chemical PhysicsThe work of Dr. Othon Moultos, assistant professor in the Process & Energy department, and his co-workers on deep eutectic solvents was recently published in the JCP Emerging Investigators Special Collection. This collection is highly selective and is meant to recognize the excellent work of early career investigators in the field of Physical Chemistry (within 10 years of PhD graduation). The success was double, since this article was also chosen as an Editor’s Pick (“hand-selected” articles that receive extra advertisement), showcasing the novelty and importance of this work. In early 2022, a subcommittee of the JCP Editorial Advisory Board will also choose two winners from among the papers accepted to the special collection in 2021. Deep eutectic solvents are a class of designer solvents having superior thermophysical properties. For this reason, they are considered lately as a promising green alternative to the conventional volatile organic solvents. To be invited in this special collection of JCP is a great honor for a young academic. It shows that all the hard work and accomplishments do not go unnoticed by the international community. It also shows a strong research momentum in the emerging field of deep eutectic solvents. Despite the widespread acknowledgment that deep eutectic solvents (DESs) have negligible vapor pressures, very few studies in which they are actually measured or computed are available. Similarly, the vapor phase composition is known for only a few DESs. In this study, for the first time, the vapor pressures and vapor phase compositions of choline chloride urea (ChClU) and choline chloride ethylene glycol (ChClEg) DESs are computed using Monte Carlo simulations. Hirad S. Salehi, H. Mert Polat, Frédérick de Meyer, Céline Houriez, Christophe Coquelet, Thijs J. H. Vlugt, and Othonas A. Moultos Read the article
Two recent articles from the Engineering Thermodynamics group (3mE) on the thermodynamic and transport properties of hydrogen are selected as Editor’s choices in the Journal of Chemical and Engineering DataEffect of Water Content on Thermodynamic Properties of Compressed Hydrogen (more than 7000 articles reads since April 2021) This work shows that at low pressure, the presence of water has a large effect on the thermodynamic properties of compressed hydrogen. The conclusions can have consequences for the energetics of a hydrogen refuelling station with electrochemical hydrogen compressors. By Ahmadreza Rahbari, Julio C. Garcia-Navarro, Mahinder Ramdin, Leo J. P. van den Broeke, Othonas A. Moultos, David Dubbeldam, and Thijs J. H. Vlugt Read the article Engineering Model for Predicting the Intradiffusion Coefficients of Hydrogen and Oxygen in Vapor, Liquid, and Supercritical Water based on Molecular Dynamics Simulations (more than 3000 articles reads since July 2021) In this article, a new engineering model that can predict the hydrogen intradiffusivity in vapor, liquid, and supercritical water is presented, along with many new data for the densities, diffusivities, and shear viscosities of the pure hydrogen and of the hydrogen/water mixtures. The new data and the engineering model presented here can be used for the design and optimization of processes encourntered in electrolyzers and fuel cells. By Ioannis N. Tsimpanogiannis, Samadarshi Maity, Alper T. Celebi, and Othonas A. Moultos Read the article
A soft touch for a hard challengeIn a period where we all hope that we are leaving lock-downs behind, it is reassuring to know that pharmaceutical industry has shown consistent progress in recent years to address various manufacturing challenges to produce essential medicines at scale. Yet one elusive issue still lingers, controlling polymorphism—ability of a molecule to exist in more than one unit structure.
Onno Kramer is awarded a PhD on 'Hydraulic modelling of liquid-solid fluidisation in drinking water treatment processes'On Friday September 10, Onno Kramer obtained his doctorate with the subject 'Hydraulic modelling of liquid-solid fluidisation in drinking water treatment processes'. This research, one of his opponents called very weighty (as much as 1.2 kilograms), is about an important part in the chain of water treatment, which he is involved with in his work at Waternet.
ONLINE ChemE FacultyColloquium by Sujit Datta