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Bannenberg, L.J. (author), Verhoeff, D. (author), Jonckers Newton, Nick (author), Thijs, M.A. (author), Schreuders, H. (author)Here, we study the structural and optical properties of tetragonal β-tantalum-sputtered thin films both ex situ and when exposed to hydrogen, with a focus on optical hydrogen sensing applications. Using optical transmission measurements, out-of-plane and in-plane X-ray diffraction, and X-ray and neutron reflectometry, we show that thin film β...journal article 2024
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Despotopoulou, M. (author), Langejans, G.H.J. (author), Hendrikx, R.W.A. (author), Joosten, Ineke (author), Nijemeisland, M. (author), Poulis, J.A. (author), Kozowyk, P.R.B. (author)Archaeological findings prove the appearance and use of birch bark tar since the Middle Palaeolithic. The production and use of birch bark tar and pine wood tar has overlapped since at least the late Neolithic, but probably for much longer. The reliable chemical identification of such archaeological tar residues can offer valuable insights...journal article 2024
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Ashokkumar, Kartik (author)The advancements in the field of e-mobility today far outpace all prior projections, and the rate of progress is quick. Due to their high power density and energy density, Lithium-Ion Batteries (LIBs) have grown to be an increasingly appealing alternative for use in electric vehicles. However, over extended use, these batteries frequently...master thesis 2023
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Corley-Wiciak, Cedric (author), Richter, Carsten (author), Zoellner, Marvin H. (author), Zaitsev, Ignatii (author), Manganelli, Costanza L. (author), Hendrickx, N.W. (author), Sammak, A. (author), Veldhorst, M. (author), Scappucci, G. (author)A strained Ge quantum well, grown on a SiGe/Si virtual substrate and hosting two electrostatically defined hole spin qubits, is nondestructively investigated by synchrotron-based scanning X-ray diffraction microscopy to determine all its Bravais lattice parameters. This allows rendering the three-dimensional spatial dependence of the six...journal article 2023
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Bannenberg, L.J. (author), Schreuders, H. (author), van Beugen, N. (author), Kinane, Christy (author), Hall, Stephen (author), Dam, B. (author)Accurate, cost-efficient, and safe hydrogen sensors will play a key role in the future hydrogen economy. Optical hydrogen sensors based on metal hydrides are attractive owing to their small size and costs and the fact that they are intrinsically safe. These sensors rely on suitable sensing materials, of which the optical properties change...journal article 2023
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The Development and Stability of Palladium-based Thin Films for Hydrogen-related Energy ApplicationsVerma, N. (author)Hydrogen has been contemplated as a desirable energy source of the future with enormous possibilities to create a carbon-neutral society. Since palladium (Pd) readily absorbs hydrogen even at low pressure and room temperature, Pd and its alloys are suitable for hydrogen production, purification, storage, gas sensors, and fuel cell catalyst....doctoral thesis 2022
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Cotte, Marine (author), Gonzalez, Victor (author), Vanmeert, Frederik (author), Jiménez, Núria (author), Possenti, Elena (author), Ghirardello, Marta (author), Avranovich Clerici, E. (author), Vivani, Riccardo (author), Taniguchi, Yoko (author), McCarthy, Joanne (author)The European Synchrotron Radiation Facility (ESRF) has recently commissioned the new Extremely Brilliant Source (EBS). The gain in brightness as well as the continuous development of beamline instruments boosts the beamline performances, in particular in terms of accelerated data acquisition. This has motivated the development of new access...journal article 2022
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Ocadiz flores, J.A. (author)Molten salts are a class of ionic liquids which have in recent years been the focus of extensive fundamental research given that they are a versatile class of reaction media with a variety of appealing thermophysical and thermochemical properties (e.g. melting points, heat capacities, vapor pressures, densities, thermal conductivities, etc..)...doctoral thesis 2021
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Tambara Jr, L.U.D. (author), Rocha, J.C. (author), Cheriaf, M. (author), Palomo, A. (author), Fernández-Jiménez, A. (author)The effect of including 5 % chloride salts (NaCl and CaCl2) on calcium sulfoaluminate cement hydration was studied. The rate of heat release, setting times and mechanical strength were determined in 2 d, 28 d and 90 d cement pastes. The hydration products formed at those ages were identified with XRD and SEM. Hydration reactions were hastened...conference paper 2021
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Ocadiz flores, J.A. (author), Gheribi, A. E. (author), Vlieland, J. (author), Dardenne, K. (author), Rothe, J. (author), Konings, R. (author), Smith, A.L. (author)© 2021 The Authors LiF-UF4 is a key binary system for molten fluoride reactor technology, which has not been scrutinized as thoroughly as the closely related LiF-ThF4 system. The phase diagram equilibria in the system LiF-UF4 are explored in this work with X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The short-range...journal article 2021
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Verma, N. (author), Delhez, R. (author), van der Pers, N.M. (author), Tichelaar, F.D. (author), Bottger, A.J. (author)In this work, we studied the mechanical and thermal stability of ~100 nm Pd thin films magnetron sputter deposited on a bare oxidized Si(100) wafer, a sputtered Titanium (Ti) intermediate layer, and a spin-coated Polyimide (PI) intermediate layer. The dependence of the film stability on the film morphology and the film-substrate interaction...journal article 2021
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Kraft, Marvin A. (author), Gronych, Lara M. (author), Famprikis, T. (author), Zeier, Wolfgang G. (author)Exploration of sulfidic sodium solid electrolytes and their design contributes to advances in solid-state sodium batteries. Such a design is guided by a better understanding of fast sodium transport, for instance, in the herein studied Na11Sn2PS12-type materials. By using Rietveld refinements against synchrotron X-ray diffraction and...journal article 2021
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Pio, Edgar (author), Medina, Ariosto (author), Martínez, Carola (author), Castro Cerda, F. (author), Aguilar, Claudio (author)Four titanium alloys (Ti-Ta, Ti-Ta-Sn, Ti-Ta-Mn, and Ti-Nb-Sn) were synthesized by mechanical alloying (MA) in a planetary mill in different times between 2 h and 100 h. The microstructure characterization was made by X-ray diffraction (XRD), in which the Rietveld method was applied to analyze the diffraction patterns. The study demonstrated...journal article 2021
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Bannenberg, L.J. (author), Schreuders, H. (author), Dam, B. (author)Hydrogen detection in a reliable, fast, and cost-effective manner is a prerequisite for the large-scale implementation of hydrogen in a green economy. Thin film Ta<sub>1−y</sub>Pd<sub>y</sub> is presented as an effective optical sensing material with extremely wide sensing ranges covering at least 7 orders of magnitude in hydrogen pressure....journal article 2021
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Kokkirala, Sahith (author)Carburized steel grades are widely used in applications where high hardness at the surface is required in combination with good core toughness as well as high fatigue resistance. The process of carburizing lower to medium carbon steel can generally provide this combination of properties and has been practised for several decades. Such steel is...master thesis 2020
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Millington, Joe (author)Site-specific calibration of laser induced breakdown spectroscopy (LIBS) analysis can be achieved by presenting known geological sample data to update algorithms, therefore improving analysis of unknown samples post-calibration. The goal of this project is to optimise drill core analysis by LIBS for samples from Kittilä gold mine. In total 227...master thesis 2020
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Ocadiz flores, J.A. (author), Carré, E. (author), Griveau, J. C. (author), Colineau, E. (author), Capelli, E. (author), Souček, P. (author), Beneš, O. (author), Smith, A.L. (author)A thermodynamic assessment of the KF-ThF<sub>4</sub> binary system using the CALPHAD method is presented, where the liquid solution is described by the modified quasichemical formalism in the quadruplet approximation. The optimization of the phase diagram is based on experimental data reported in the literature and newly measured X-ray...journal article 2020
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Prot, T.J.F. (author), Wijdeveld, W. (author), Eshun, L. Ekua (author), Dugulan, A.I. (author), Goubitz, K. (author), Korving, L. (author), van Loosdrecht, Mark C.M. (author)The recovery of phosphorus from secondary sources like sewage sludge is essential in a world suffering from resources depletion. Recent studies have demonstrated that phosphorus can be magnetically recovered as vivianite (Fe(II)<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>∗8H<sub>2</sub>O) from the digested sludge (DS) of Waste Water Treatment...journal article 2020
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Smith, A.L. (author), Kauric, G.P.T.F. (author), van Eijck, L. (author), Goubitz, K. (author), Clavier, N. (author), Wallez, G. (author), Konings, R. (author)Neutron diffraction measurements of the double molybdate Cs<sub>3</sub>Na(MoO<sub>4</sub>)<sub>2</sub> have been performed for the first time in this work and the crystal structure refined using the Rietveld method. The thermal expansion of this trigonal phase, in space group P3¯m1, measured using high temperature X-ray diffraction (XRD),...journal article 2019
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Bannenberg, L.J. (author), Nugroho, Ferry Anggoro Ardy (author), Schreuders, H. (author), Norder, B. (author), Trinh, Thuy-Trang (author), Steinke, N.J. (author), van Well, A.A. (author), Langhammer, Christoph (author), Dam, B. (author)Nanostructured metal hydrides are able to efficiently detect hydrogen in optical sensors. In the literature, two nanostructured systems based on metal hydrides have been proposed for this purpose each with its own detection principle: continuous sub-100 nm thin films read out via optical reflectance/transmittance changes and nanoparticle arrays...journal article 2019