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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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Didden, A. (author), Hillebrand, P. (author), Wollgarten, M. (author), Dam, B. (author), Van de Krol, R. (author)Conductive TiN shells have been deposited on SiO2 nanoparticles (10–20 nm primary particle size) with fluidized bed atomic layer deposition using TDMAT and NH3 as precursors. Analysis of the powders confirms that shell growth saturates at approximately 0.4 nm/cycle at TDMAT doses of >1.2 mmol/g of powder. TEM and XPS analysis showed that all...journal article 2016
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Dam, B. (author), Boelsma, C. (author)The present invention relates to a single element thin-film device, to a method for producing a thin-film device, to a single element for detecting hydrogen absorption, to a hydrogen sensor, to an apparatus for detecting hydrogen and to an electro-magnetic transformer comprising said sensor. A thin-film device comprises a substrate, an active...patent 2015
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Boelsma, C. (author), Dam, B. (author)The present invention relates to a thin-film sensor, to a method for producing a thin-film device, to an alloy for use in an optical sensing layer, to use of an alloy for sensing a chemical species such as hydrogen, to a sensor, to an apparatus for detecting hydrogen, to an electro-magnetic transformer comprising said sensor and to a switching...patent 2015
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Westerwaal, R.J. (author), Szilagyi, P.A. (author), Dam, B. (author)The present invention relates to a thin-film device, to a method for producing a thin-film device, to a protective layer for shielding an oxygen, moisture and/or carbon monoxide sensitive surface, to a method for shielding such a surface, to a method for forming a metal framework material, to a hydrogen sensor and to an electro-magnetic...patent 2014
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Yoshimura, K. (author), Langhammer, C. (author), Dam, B. (author)The hydrogenation of metals often leads to changes in optical properties in the visible range. This allows for fundamental studies of the hydrogenation process, as well as the exploration of various applications using these optical effects. Here, we focus on recent developments in metal hydride-based optical fiber and plasmonic sensors and smart...journal article 2013
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Perrotton, C. (author), Westerwaal, R.J. (author), Javahiraly, N. (author), Slaman, M. (author), Schreuders, H. (author), Dam, B. (author), Meyrueis, P. (author)We report for the first time on the experimental response of a Surface Plasmon Resonance fiber optic sensor based on wavelength modulation for hydrogen sensing. This approach of measuring the hydrogen concentration makes the sensor insensitive to intensity fluctuations. The intrinsic fiber sensor developed provides remote sensing and enables the...journal article 2013
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Anastasopol, A. (author), Eijt, S.W.H. (author), Schut, H. (author), Mulder, F.M. (author), Plazaola, F. (author), Dam, B. (author)Mg-Ti compounds are attractive candidates as hydrogen storage materials for their fast sorption kinetics and high storage capacity. In this context, an investigation of their thermal stability is of great importance. The thermal stability of MgyTi1-y thin films was investigated using positron annihilation spectroscopy. Despite the positive...journal article 2012
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Pivak, Y. (author), Schreuders, H. (author), Dam, B. (author)Using hydrogenography, we investigate the thermodynamic parameters and hysteresis behavior in Mg thin films capped by Ta/Pd, in a temperature range from 333 K to 545 K. The enthalpy and entropy of hydride decomposition, ?Hdes = ?78.3 kJ/molH2, ?Sdes = ?136.1 J/K molH2, estimated from the Van't Hoff analysis, are in good agreement with bulk...journal article 2012
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Kepaptsoglou, D.M. (author), Jensen, I.J.T. (author), Sarahan, M. (author), Ramasse, Q.M. (author), Schreuders, H. (author), Dam, B. (author), Diplas, S. (author), Løvvik, O.M. (author), Taftø, J. (author)Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.journal article 2011
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Yokosawa, T. (author), Alan, T. (author), Pandraud, G. (author), Dam, B. (author), Zandbergen, H.W. (author)Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.journal article 2011
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Perrotton, C. (author), Javahiraly, N. (author), Slaman, M.J. (author), Dam, B. (author), Meyrueis, P. (author)A new design of a fiber optic Surface Plasmon Resonance (SPR) sensor using Palladium as a sensitive layer for hydrogen detection is presented. In this approach, a transducer layer is deposited on the outside of a multimode fiber, after removing the optical cladding. The transducer layer is a multilayer stack made of a Silver, a Silica and a...journal article 2011
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Perrotton, C. (author), Javahiraly, N. (author), Slaman, M. (author), Schreuders, H. (author), Dam, B. (author), Meyrueis, P. (author)A design to optimize a fiber optic Surface Plasmon Resonance (SPR) sensor using Palladium as a sensitive layer for hydrogen detection is presented. In this approach, the sensitive layer is deposited on the core of a multimode fiber, after removing the optical cladding. The light is injected in the fiber with a given wavelength and all fiber...conference paper 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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Van Setten, M.J. (author), Gremaud, R. (author), Brocks, G. (author), Dam, B. (author), Kresse, G. (author), De Wijs, G.A. (author)We calculate from first principles the optical spectra of the hydrides in the sodium alanate hydrogen storage system: NaH, NaAlH4, and Na3AlH6. In particular we study the effects of systematic improvements of the theoretical description. To benchmark the calculations we also measure the optical response of a thin film of NaH. The simplest...journal article 2011
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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
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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 containing structured hydrogen sensing points, consisting of Palladium and/or Magnesium alloys is proposed and characterized. 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 which uses the Surface Plasmon Resonance effect....conference paper 2010
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Leegwater, H. (author), Schut, H. (author), Egger, W. (author), Baldi, A. (author), Dam, B. (author), Eijt, S.W.H. (author)We obtained evidence for the partial chemical segregation of as-deposited and hydrogenated Mg1?yTiy films (0 ? y ? 0.30) into nanoscale Ti and Mg domains using positron Doppler-broadening. We exclusively monitor the hydrogenation of Mg domains, owing to the large difference in positron affinity for Mg and Ti. The electron momentum distribution...journal article 2010
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Krishnan, G. (author), Kooi, B.J. (author), Palasantzas, G. (author), Pivak, Y. (author), Dam, B. (author)In this work we present a unique transmission electron microscopy study of the thermal stability of gas phase synthesized Mg nanoparticles, which have attracted strong interest as high capacity hydrogen storage materials. Indeed, Mg nanoparticles with a MgO shell ( ? 3?nm thick) annealed at 300?°C show evaporation, void formation, and void...journal article 2010
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- Dam, B. (author) public lecture 2009
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