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Staginus, J. (author)There is a high motivation to develop smart sensor systems based on surface-engineered sensor elements for environmental and biomedical monitoring purposes. Key characteristics are that the sensors perform reliable, accurate, sensitive, and ideally selective measurements while being low-cost, portable, robust for online and on-field applications...doctoral thesis 2015
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Kruit, K.D. (author), Vervloet, D. (author), Kapteijn, F. (author), Van Ommen, J.R. (author)Non-ASF product distributions in Fischer–Tropsch synthesis can occur with a gradient in process conditions at the particle or reactor scale, leading to a gradient in chain growth probability a.Weighted summation of local product distributions gives the proper, non-ASF product distribution.journal article 2013
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Tahmasebpoor, M. (author), Mart?n, L. De (author), Talebi, M. (author), Mostoufia, N. (author), Van Ommen, R.J. (author)The effect of surface characteristics on the interaction between nanoparticles and their agglomeration in dense gas suspensions is still not fully understood. It is known that when the surface is covered with hydroxyl groups, the interaction between nanoparticles becomes substantially stronger than in the absence of these groups; this...journal article 2013
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Agostinho, L.L.F. (author)Electrohydrodynamic Atomization, often called electrospraying, is a way to disintegrate a liquid into droplets by exposing it to a strong electric field. Although William Gilbert has reported about the deformation of a liquid meniscus under the influence of an electric field already more than four centuries ago, the interest about electrostatic...doctoral thesis 2013
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Minkenberg, C.B. (author)In this thesis the development of surfactant aggregates with fast exchange dynamics between the aggregated and non-aggregated state is described. Dynamic surfactant exchange plays an important role in natural systems, for instance in cell signaling, cell division, and uptake and release of cargo. Remarkably, dynamic surfactant exchange in...doctoral thesis 2012
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Munao, D. (author)The area of nanotechnology is one of the most active fields in science today. It is often seen as the area that could lead to substantial progress in terms of finding new materials with new properties. In this respect, silicon nano-particles are found to be greatly attractive because of their significant technological implications. Considering...doctoral thesis 2012
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Trzeciak, T.M. (author)The process of Brownian coagulation, whereby particles are brought together by thermal motion and grow by collisions, is one of the most fundamental processes influencing the final properties of particulate matter in a variety of technically important systems. It is of importance in colloids, emulsions, flocculation, air pollution, soot...doctoral thesis 2012
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Verdoold, S. (author)ElectroHydroDynamic Atomisation (or electrospraying) is a way to disperse a liquid into droplets by exposing it to a strong electric field. The resulting droplets are (highly) charged and can exhibit narrow size and charge distributions which is desirable for many applications. In this dissertation a novel method is developed to classify the...doctoral thesis 2012
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Locati, C. (author)The fast-growing market on electronic portable devices is possibly due to the development of Li-ion batteries. Besides, such batteries are the most promising candidates as energy storage media in (hybrid) electric vehicles, in the near future. However, improvements on electrochemical performances and on safety need to be achieved. With respect...doctoral thesis 2012
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Pivak, Y. (author)Hydrogenography is a combinatorial optical thin film technique to study the thermodynamic properties of metal hydride storage materials. It allows to study thousands of compositions simultaneously with exactly the same experimental conditions. Hydrogenography can pin point the most interesting regions/compositions in binary, ternary, quaternary...doctoral thesis 2012
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Eichhorn, S.H. (author), Shuai, C. (author), Ahmida, M. (author), Demenev, A. (author), Kayal, H. (author), Raad, F.S. (author), Kaafarani, B.R. (author), Patwardhan, S. (author), Grozema, F.C. (author), Siebbeles, L.D.A. (author), Taerum, T. (author), Perepichka, D.F. (author), Klenkler, R. (author)Donor-acceptor structures have recently gained great popularity for the design of low band gap polymeric organic semiconductors. Presented here is a first systematic study of organic semiconductors based on columnar liquid crystals that consist of discotic and board-shaped donor-acceptor structures. The discotic benzotristhiophenetricarboxamide...conference paper 2011
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Chen, J.C. (author), Pronk, T.M.C. (author), Van de Wouw, A. (author)Document(en) uit de collectie Chemische Procestechnologiereport 2011
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Bakker, J.J.W. (author), Zieverink, M.M.P. (author), Kapteijn, F. (author), Moulijn, J.A. (author), Kreutzer, M.T. (author)Segmented flow in standard GC capillary columns, with a heterogeneous Pd catalyst on the walls, gave rapid information about catalytic processes in them. The residence time and conversion was monitored visually, greatly simplifying bench-scale optimization. Examples show the benefits of the elimination of pore diffusion and axial dispersion....journal article 2011
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- De Leeuwe, J. (author) journal article 2011
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Perrotton, C. (author), Slaman, M. (author), Javahiraly, N. (author), Schreuders, H. (author), Dam, B. (author), Meyrueis, P. (author)An optical fiber using palladium as sensitive layer is characterized in the range of 450 to 900 nm. The sensitive layer is deposited on the outside of a multimode fiber, after removing the optical cladding. The sensor is based on a measurement technique that uses the surface plasmon resonance effect. A continuous change in output intensity is...journal article 2011
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Almeida, A.R. (author)Chemical processes are generally operated at elevated temperatures and pressures, and energy intensive separations are usually necessary. This thesis focuses on the production of cyclohexanone, which is an intermediate of high commercial importance as a result of its use in nylon-6 and nylon-6,6 production. Using TiO2 based photo-catalysis is a...doctoral thesis 2010
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Van Ommen, J.R. (author), Ellis, N. (author), Yurteri, C. (author), Marijnissen, J.C.M. (author)The invention is directed to a process and apparatus for preparing coated particles, in particular a process for preparing particles that are coated with small particles using electrospraying. The coated particles produced according to the present invention find use for instance as catalysts or as pharmaceuticals. According to the invention a...patent 2010
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Van den Bergh, J. (author)Around 2004 the annual energy consumption of the Dutch (petro-)chemical industry was estimated to be 460 PJ of which 200 PJ could be allocated to separation processes [1]. In 2009, 15% of the global energy consumption was required for separation and purification processes to produce commodities. Moreover, it is expected that in 2040 the global...doctoral thesis 2010
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Khajavi, S. (author), Kapteijn, F. (author), Jansen, J.C. (author)The invention is directed to a process for the production of ultra pure water, comprising feeding water containing ions and optionally other impurities to one side of a membrane based on hydroxy sodalite (H-SOD), and recovering ultra pure water from the other side of the membrane.patent 2010
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Baldi, A. (author), Pálsson, G.K. (author), Gonzalez-Silveira, M. (author), Schreuders, H. (author), Slaman, M. (author), Rector, J.H. (author), Krishnan, G. (author), Kooi, B.J. (author), Walker, G.S. (author), Fay, M.W. (author), Hjörvarsson, B. (author), Wijngaarden, R.J. (author), Dam, B. (author), Griessen, R. (author)Mg-Ti alloys have uncommon optical and hydrogen absorbing properties, originating from a “spinodal-like” microstructure with a small degree of chemical short-range order in the atomic distribution. In the present study we artificially engineer short-range order by depositing Pd-capped Mg/Ti multilayers with different periodicities....journal article 2010