Searched for: subject%3A%22Catalysts%22
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Boymans, E.H. (author), Nijbacker, T. (author), Grootjes, A.J. (author), Vreugdenhil, B.J. (author)
Advanced biofuels are required to facilitate the energy transition away from fossil fuels and lower the accompanied CO2 emissions. Particularly, jet fuel needs a renewable substitute, for which novel production routes and technology are needed that are more efficient and economically viable. The direct conversion of bio-syngas into fuel is one...
article 2022
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de Koning, M.C. (author), Vieiro Soares, C. (author), van Grol, M. (author), Bross, R.P.T. (author), Maurin, G. (author)
Novichoks are a novel class of nerve agents (also referred to as the A-series) that were employed in several poisonings over the last few years. This calls for the development of novel countermeasures that can be applied in protective concepts (e.g., protective clothing) or in decontamination methods. The Zr metal−organic framework MOF-808 has...
article 2022
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Peinado, C. (author), Liuzzi, D. (author), Sanchis, A. (author), Pascual, L. (author), Peña, M.A. (author), Boon, J. (author), Rojas, S. (author)
The synthesis of methanol from biomass-derived syngas can be challenging because of the high CO2 content in the bio-syngas, resulting in lower kinetics and higher catalyst deactivation. This work explores the in situ pre-treatment of a CO2-rich syngas with a CO2/CO ratio equal to 1.9 through the reverse-water gas shift reaction with the aim of...
article 2021
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Bruggeman, D.F. (author), Mathew, S. (author), Detz, R.J. (author), Reek, J.N.H. (author)
This study examines two strategies—homo- and heterogeneous approaches for the light-driven oxidation of benzyl alcohol in dye-sensitised photoelectrochemical cells (DSPECs). The DSPEC consists of a mesoporous anatase TiO2 film on FTO (fluorine-doped tin oxide), sensitised with the thienopyrroledione-based dye AP11 as the photoanode and an FTO–Pt...
article 2021
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Bosilj, M. (author), Rustam, L. (author), Thomann, R. (author), Melke, J. (author), Fischer, A. (author), White, R.J. (author)
Selective hydrogenations in the aqueous phase are an important transformation in the context of developing biorefinery concepts. In this report the application and optimisation of nitrogen-doped carbon (NDC) supported Pd nanoparticles as hydrogenation catalysts is discussed in the context of directing support (e.g. N) chemistry for improved...
article 2020
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Byrne, F.P. (author), Nussbaumer, C.M. (author), Savin, E.J. (author), Milescu, R.A. (author), McElroy, C.R. (author), Clark, J.H. (author), van Vugt-Lussenburg, B.M.A. (author), van der Burg, B. (author), Meima, M.Y. (author), Buist, H.E. (author), Kroese, E.D. (author), Hunt, A.J. (author), Farmer, T.J. (author)
Three dipolar aprotic solvents were designed to possess high dipolarity and low toxicity: N,N,N′,N′-tetrabutylsuccindiamide (TBSA), N,N′-diethyl-N,N′-dibutylsuccindiamide (EBSA), and N,N′-dimethyl-N,N′-dibutylsuccindiamide (MBSA). They were synthesized catalytically by using a K60 silica catalyst in a solventless system. Their water...
article 2020
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Yan, N. (author), Detz, R.J. (author), Govindarajan, N. (author), Koelewijn, J.M. (author), Hua, B. (author), Li, P. (author), Meijer, E.J. (author), Reek, J.N.H. (author)
Water oxidation catalysis plays a pivotal role in the context of the worldwide interest for sustainable energy. Finding cost-effective and robust catalysts to replace the state-of-the-art noble metal materials is hence urgent. In this work, we develop a molecular iridium complex that selectively and uniformly anchors on the surface of manganese...
article 2019
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Filiciotto, L. (author), Marquez-Medina, M.D. (author), Pineda, A. (author), Balu, A.M. (author), Romero, A.A. (author), Angelici, C. (author), de Jong, E. (author), van der Waal, J.C. (author), Luque, R. (author)
The use of a biorefinery co-product, such as humins, in combination with an iron precursor in a solvent-free method yields a catalytic material with potential use in selective oxidative cleavage reactions. In particular, this catalyst was found active in the hydrogen-peroxide assisted oxidation of a naturally extracted molecule, isoeugenol, to...
article 2019
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QuSoft, QT/e, NWO, het Lorentz Instituut, AMS-IX, StartupDelta en Microsoft, m.m.v. EZK TNO, QuTech, (author)
report 2019
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Verkaaik, M. (author), Grote, R. (author), Meulendijks, N. (author), Sastre, F. (author), Weckhuysen, B.M. (author), Buskens, P. (author)
The interaction between plasmonic metal catalysts and visible light can be exploited to increase their catalytic activity. This activity increase results from the generation of hot charge carriers or hot surfaces, or a combination of both. We have studied the light-induced Suzuki-Miyaura cross-coupling reaction of bromobenzene and m-tolylboronic...
article 2019
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Garcia, A.C. (author), Touzalin, T. (author), Nieuwland, C. (author), Perini, N. (author), Koper, M.T.M. (author)
Herein, the effect of the alkali cation (Li+, Na+, K+, and Cs+) in alkaline electrolytes with and without Fe impurities is investigated for enhancing the activity of nickel oxyhydroxide (NiOOH) for the oxygen evolution reaction (OER). Cyclic voltammograms show that Fe impurities have a significant catalytic effect on OER activity; however, both...
article 2019
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Bosilj, M. (author), Schmidt, J. (author), Fischer, A. (author), White, R.J. (author)
The one-pot conversion of glucose to ethyl levulinate over an acid-functionalised hydrothermal catalyst (derived from glucose) provides high initial yields up to 37 mol%, comparable to the homogeneous H2SO4 catalyst, whilst catalyst performance is strongly influenced by green solvent choice.
article 2019
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Sastre, F. (author), Versluis, C. (author), Meulendijks, N.M.M. (author), Rodriguez-Fernandez, J. (author), Sweelssen, J. (author), Elen, K. (author), van Bael, M.K. (author), den Hartog, T. (author), M.A. Verheijen, . (author), Buskens, P.J.P. (author)
Methane, which has a high energy storage density and is safely stored and transported in our existing infrastructure, can be produced through conversion of the undesired energy carrier H2 with CO2. Methane production with standard transition-metal catalysts requires high-temperature activation (300−500 °C). Alternatively, semiconductor metal...
article 2019
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Hobbs, C. (author), Jaskaniec, S. (author), McCarthy, E.K. (author), Downing, C. (author), Opelt, K. (author), Güth, K. (author), Shmeliov, A. (author), Mourad, M.C.D. (author), Mandel, K. (author), Nicolosi, V. (author)
A comprehensive nanoscale understanding of layered double hydroxide thermal evolution is critical for their current and future applications as catalysts, flame retardants and oxygen evolution performers. In this report, we applied in situ transmission electron microscopy to extensively characterise the thermal progressions of nickel-iron...
article 2018
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Erich, S.J.F. (author), Gezici-Koç, Ö. (author), Michel, M.E.B. (author), Thomas, C.A.A.M. (author), van der Ven, L.G.J. (author), Huinink, H.P. (author), Flapper, J. (author), Duivenvoorde, F.L. (author), Adan, O.C.G. (author)
Cobalt based driers are the most commonly used primary catalysts in alkyd coatings as they promote fast drying and lead to hard coatings. However, several studies have suggested potential reclassification of cobalt-based alkyd driers. Therefore, cobalt based driers are being replaced by alternatives, e.g. based on iron or manganese. In practice...
article 2017
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Seykens, X. (author), van den Tillaart, E. (author), Lilova, V. (author), Nakatani, S. (author)
Since the introduction of Euro IV legislation [1, 2], Selective Catalytic Reduction (SCR) technology using liquid urea injection is (one of) the primary methods for NOx reduction in many applications. Ammonia (NH3) is the reagent and key element for the SCR system and its control calibration to meet all operational requirements. TNO and Horiba...
article 2016
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Gezici-Koç, Ö. (author), Thomas, C.A.A.M. (author), Michel, M.E.B. (author), Erich, S.J.F. (author), Huinink, H.P. (author), Flapper, J. (author), Duivenvoorde, F.L. (author), van der Ven, L.G.J. (author), Adan, O.C.G. (author)
As a result of potential reclassification of cobalt-based alkyd driers, many studies have been conducted to find suitable alternatives as primary driers in alkyd paints. Some commercial replacements are currently available. A systematic investigation on the oxidative drying of solventborne alkyd coatings with commercial cobalt-free driers has...
article 2016
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Wittkampf, S.A. (author)
After several breakthroughs in the field of additive manufacturing, ECN has managed to 3D-print sorbents and catalyst support structures. This results in far more design freedom for reactors, catalysts and sorbents compared to the state-of-the-art. This knowledge enables the development of significantly more efficient conversion processes in the...
other 2016
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Langanke, J. (author), Arfsten, N. (author), Buskens, P. (author), Habets, R. (author), Klankermayer, J. (author), Leitner, W. (author)
Scratch resistant sol-gel metal oxide coatings typically require a thermal post-treatment step (curing process) at temperatures between 400 and 700 C. In this report, we demonstrate that the in situ generation of amines within sol-gel films facilitates the preparation of scratch resistant metal oxide coatings at a curing temperature of 250 C. A...
article 2013
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Willems, F.P.T. (author), Cloudt, R.P.M. (author)
Selective catalytic reduction (SCR) is a promising diesel aftertreatment technology that enables low nitrogen oxides (NOx) tailpipe emissions with relatively low fuel consumption. Future emission legislation is pushing the boundaries for SCR control systems to achieve high NOx conversion within a tailpipe ammonia (NH3) slip constraint, and to...
article 2011
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