Searched for: department%3A%22ChemE%255C%257Eslsh%257EChemical%255C%2BEngineering%22
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Borgul, Paulina (author), Sobczak, Karolina (author), Rudnicki, Konrad (author), Glazer, P.J. (author), Pawlak, Patrycja (author), Trynda, Anna (author), Skrzypek, Sławomira (author), Poltorak, Lukasz (author)
In this work, we have used cyclic voltammetry to investigate the interfacial behavior of cocaine cutting agents at the electrified liquid-liquid interface formed between a solution of the water and 1,2-dichloroethane phases. Among 27 chemical species used to adulterate cocaine street samples, only 8 were detectable in the available potential...
journal article 2022
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Colombi, G. (author), Stigter, Marinus (author), Chaykina, D. (author), Banerjee, Shrestha (author), Kentgens, Arno P.M. (author), Eijt, S.W.H. (author), Dam, B. (author), De Wijs, Gilles A. (author)
In this paper, we investigate by ab initio DFT how the O:H ratio influences the formation and lattice energy, metastability, and optical properties of Y and La anion-disordered ROxH3-2x oxyhydrides. To achieve this, a set of special quasirandom structures (SQS) is introduced to model anion-disorder along the whole RH3-R2O3 composition line. A...
journal article 2022
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Venugopal, A. (author), Egberts, Laurentius H.T. (author), Meeprasert, J. (author), Pidko, E.A. (author), Dam, B. (author), Burdyny, T.E. (author), Sinha, V. (author), Smith, W.A. (author)
Finding alternative ways to tailor the electronic properties of a catalyst to actively and selectively drive reactions of interest has been a growing research topic in the field of electrochemistry. In this Letter, we investigate the tuning of the surface electronic properties of electrocatalysts via polymer modification. We show that when a...
journal article 2022
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Erdbrügger, Uta (author), Blijdorp, Charles J. (author), Bijnsdorp, Irene V. (author), Borràs, Francesc E. (author), Bussolati, Benedetta (author), Byrd, James Brian (author), Jenster, G. (author), van Royen, M.E. (author), van Steijn, V. (author)
Urine is commonly used for clinical diagnosis and biomedical research. The discovery of extracellular vesicles (EV) in urine opened a new fast-growing scientific field. In the last decade urinary extracellular vesicles (uEVs) were shown to mirror molecular processes as well as physiological and pathological conditions in kidney, urothelial...
journal article 2021
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Colombi, G. (author), De Krom, Tom (author), Chaykina, D. (author), Cornelius, S. (author), Eijt, S.W.H. (author), Dam, B. (author)
Rare-earth oxyhydride REOxH3-2x thin films prepared by air-oxidation of reactively sputtered REH2 dihydrides show a color-neutral, reversible photochromic effect at ambient conditions. The present work shows that the O/H anion ratio, as well as the choice of the cation, allow to largely tune the extent of the optical change and its speed. The...
journal article 2021
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Pols, C.F.J. (author), Duynkerke, Lennard (author), Van Arragon, Jels (author), Van Prooijen, Kevin (author), Van Der Goot, Luuk (author), Bera, B. (author)
As part of the final projects of our introductory lab course, students conceived experiments related to the umbrella topic of 'Physics of toys and sports' and carried out the experiments at their homes. This paper revisits two of these experiments described by student teams and illustrates how self-conceived experiments provide opportunities...
journal article 2021
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Castelein, Sofie M. (author), Aarts, Tom F. (author), Schleppi, Juergen (author), Hendrikx, R.W.A. (author), Bottger, A.J. (author), Benz, D. (author), Brouns, S.J.J. (author), Meyer, A.S. (author), Lehner, B. (author)
In-situ resource utilization (ISRU) is increasingly acknowledged as an essential requirement for the construction of sustainable extra-terrestrial colonies. Even with decreasing launch costs, the ultimate goal of establishing colonies must be the usage of resources found at the destination of interest. Typical approaches towards ISRU are...
journal article 2021
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Chaykina, D. (author), Nafezarefi, F. (author), Colombi, G. (author), Cornelius, S. (author), Bannenberg, L.J. (author), Schreuders, H. (author), Dam, B. (author)
Thin films of rare earth metal oxyhydrides show a photochromic effect, the precise mechanism of which is yet unknown. Here, we made thin films of NdH3-2xOx and show that we can change the band gap, crystal structure, and photochromic contrast by tuning the composition (O2-:H-) via the sputtering deposition pressure. To protect these films...
journal article 2021
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Bannenberg, L.J. (author), Schreuders, H. (author), Kim, H.J. (author), Sakaki, Kouji (author), Hayashi, Shigenobu (author), Ikeda, Kazutaka (author), Otomo, Toshiya (author), Dam, B. (author), Asano, Kohta (author)
Metal hydrides may play a paramount role in a future hydrogen economy. While most applications are based on nanostructured and confined materials, studies considering the structural response of these materials to hydrogen concentrate on bulk material. Here, using in situ in- and out-of-plane X-ray diffraction and reflectometry, we study the fcc ...
journal article 2021
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Griessen, Ronald (author), Dam, B. (author)
In many experimental investigations of thermodynamic equilibrium or kinetic properties of series of similar reactions it is found that the enthalpies and entropies derived from Van ′t Hoff or Arrhenius plots exhibit a strong linear correlation. The origin of this Enthalpy-Entropy compensation, which is strongly related to the coalescence...
journal article 2021
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Chaykina, D. (author), De Krom, T. (author), Colombi, G. (author), Schreuders, H. (author), Suter, A. (author), Prokscha, T. (author), Dam, B. (author), Eijt, S.W.H. (author)
Thin films of rare-earth metal oxyhydrides, such as yttrium oxyhydrides (YH3-2xOx), show a photochromic effect where the transparency of the films decreases reversibly upon exposure to UV light. However, the exact mechanism behind this effect is unknown. In this paper, we describe the behavior of YH3-2xOx thin films, with different O2-:H-...
journal article 2021
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Lehner, B. (author), Benz, D. (author), Moshkalev, Stanislav A. (author), Meyer, Anne S. (author), Cotta, Monica A. (author), Janissen, R. (author)
Graphene oxide (GO) has immense potential for widespread use in diverse in vitro and in vivo biomedical applications owing to its thermal and chemical resistance, excellent electrical properties and solubility, and high surface-to-volume ratio. However, development of GO-based biological nanocomposites and biosensors has been hampered by its...
journal article 2021
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Feinberg, A. (author), Ghorbani, A. (author), Herder, P.M. (author)
In this paper, we investigate the potential of urban commons for building community resilience. We focus on the issue of adaptability to socio-ecological issues, which depends on the social capital built by the local community of practice. We measure this capital through the variables of volunteer involvement, perceived trust, and social...
journal article 2020
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Sachdev, S. (author), Feijoo Moreira, Sara (author), Keehnen, Yasmine (author), Rems, L. (author), Kreutzer, M.T. (author), Boukany, P. (author)
Size of DNA molecules governs their interaction with the cell membrane during electroporation and their subsequent transport inside the cell. In order to investigate the effect of DNA size on DNA-membrane interaction during electroporation, cells are electro-pulsed with DNA molecules; 15 bp, 25 bp, 50 bp, 100 bp and 1000 bp (bp = base pairs)....
journal article 2020
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Eijt, S.W.H. (author), De Krom, T. W.H. (author), Chaykina, D. (author), Schut, H. (author), Colombi, G. (author), Cornelius, S. (author), Egger, W. (author), Dickmann, M. (author), Dam, B. (author)
Doppler broadening positron annihilation spectroscopy depth profiles were collected on photochromic YO<sub>x</sub>H<sub>y</sub> thin films. In situ UV illumination of photochromic semiconductor YO<sub>x</sub>H<sub>y</sub> films leads to an increase in S-parameter and a large reduction in W-parameter, possibly caused by a change in the charge...
journal article 2020
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Wang, N. (author), Verzijlbergh, R.A. (author), Heijnen, P.W. (author), Herder, P.M. (author)
This paper reviews the literature on the modeling approaches on decentralized energy investment and operation in the prosumer era. The study has several contributions. Firstly, it adds investment models into the review which have not been previously reviewed for decentralized energy modeling. Secondly, a modeling framework consisting of four...
conference paper 2020
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Kloosterman, Ritsche A. (author), van der Hoek, J.P. (author), Herder, P.M. (author)
A significant challenge for managers of drinking water infrastructures is to make effective strategic decisions for assets with a long lifetime in an uncertain and changing environment. Water resources, which are part of the drinking water infrastructures, have a special position in this decision making process as they operate at the...
journal article 2020
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Westsson, E.E. (author)
The increasing energy demand of the world population in combination with tangible climate change effects stemming from rising carbon dioxide emissions is currently characterizing a large portion of the political and societal debate. Despite huge technological advancement in the field of renewable energy resulting in energy prices lower than that...
doctoral thesis 2019
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Sachdev, S. (author), Muralidharan, A. (author), Choudhary, Dipendra K. (author), Perrier, D.L. (author), Rems, L. (author), Kreutzer, M.T. (author), Boukany, P. (author)
Delivery of naked DNA molecules into living cells via physical disruption of the membrane under electric pulses has potential biomedical applications ranging from gene electro-transfer, electro-chemotherapy, to gene therapy, yet the mechanisms involved in DNA transport remain vague. To investigate the mechanism of DNA translocation across the...
journal article 2019
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Chakkingal, M. (author), Kenjeres, S. (author), Ataei Dadavi, I. (author), Tummers, M.J. (author), Kleijn, C.R. (author)
We report numerical simulations of fluid natural convection with conjugate heat transfer in a bottom-heated, top-cooled cubical cavity packed with relatively large (d/L=0.2) solid spheres in a Body Centred Tetragonal (BCT) configuration. We study largely varying solid-to-fluid thermal conductivity ratios between 0.3 and 198, for a fluid...
journal article 2019
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