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Verification of exposure to chemical warfare agents through analysis of persistent biomarkers in plants

de Bruin-Hoegée, J.M. (author), Lamriti, L. (author), Langenberg, J.P. (author), Olivier, R.C.M. (author), Chau, L.F. (author), van der Schans, M.J. (author), Noort, D. (author), van Asten, A.C. (author)

The continuing threats of military conflicts and terrorism may involve the misuse of chemical weapons. The present study aims to use environmental samples to find evidence of the release of such agents at an incident scene. A novel approach was developed for identifying protein adducts in plants. Basil (Ocimum basilicum), bay laurel leaf (Laurus...

article 2023

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On the climate impacts of blue hydrogen production

Bauer, C. (author), Treyer, K. (author), Antonini, C. (author), Bergerson, J. (author), Gazzani, M. (author), Gencer, E. (author), Gibbins, J. (author), Mazzotti, M. (author), McCoy, S.T. (author), McKenna, R. (author), Pietzcker, R. (author), Ravikumar, A.P. (author), Romano, M.C. (author), Ueckerdt, F. (author), Vente, J. (author), van der Spek, M. (author)

Natural gas based hydrogen production with carbon capture and storage is referred to as blue hydrogen. If substantial amounts of CO2 from natural gas reforming are captured and permanently stored, such hydrogen could be a low-carbon energy carrier. However, recent research raises questions about the effective climate impacts of blue hydrogen...

article 2022

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Comparison of homogeneous and heterogeneous catalysts in dye-sensitised photoelectrochemical cells for alcohol oxidation coupled to dihydrogen formation

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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Rheological response of a modified polyacrylamide-silica nanoparticles hybrid at high salinity and temperature

Mirzaie Yegane, M. (author), Hashemi, F. (author), Vercauteren, F. (author), Meulendijks, N. (author), Gharbi, R. (author), Boukany, P.E. (author), Zitha, P. (author)

Water-soluble polyacrylamides have often been used to modify flow response in various water-based technologies and industrial processes, including paints, water treatment, paper manufacturing, and chemical enhanced oil recovery. Polymers are susceptible to degradation at combined high salinity and elevated temperature conditions which limits...

article 2020

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Large area perovskite light-emitting diodes by gas-assisted crystallization

Prakasam, V. (author), Tordera, D. (author), di Giacomo, F. (author), Abbel, R. (author), Langen, A. (author), Gelinck, G. (author), Bolink, H.J. (author)

Halide perovskites have been gaining considerable attention recently for use in light-emitting applications, due to their bandgap tunability, color purity and low cost fabrication methods. However, current fabrication techniques limit the processing to small-area devices. Here, we show that a facile N 2 gas-quenching technique can be used to...

article 2019

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Selective surface functionalization generating site-isolated Ir on a MnO: X/N-doped carbon composite for robust electrocatalytic water oxidation

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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Poly(caprolactone -co -trimethylenecarbonate) urethane acrylate resins for digital light processing of bioresorbable tissue engineering implants

Kuhnt, T. (author), marroquín García, R. (author), Camarero-Espinosa, S. (author), Dias, A. (author), ten Cate, A.T. (author), van Blitterswijk, C.A. (author), Moroni, L. (author), Baker, M.B. (author)

To exploit the usability of Digital Light Processing (DLP) in regenerative medicine, biodegradable, mechanically customizable and well-defined polyester urethane acrylate resins were synthesized based on poly(caprolactone-co-trimethlenecarbonate). By controlling the monomer ratio, the resultant fabricated constructs showed tunable mechanical...

article 2019

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One pot conversion of glucose to ethyl levulinate over a porous hydrothermal acid catalyst in green solvents

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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Mechanism and theory of d-glucopyranose homogeneous acid catalysis in the aqueous solution phase

Ghosh, M.K. (author), Howard, M.S. (author), Dussan, K. (author), Dooley, S. (author)

A detailed systematic theoretical study of the mechanism of the homogeneous Brønsted-acid catalysis of d-glucose in aqueous solution phase ("acid hydrolysis") is reported. G4MP2 with the SMD solvation model at B3LYP/6-31G(2df,p) are employed to compute the free energies of the molecular and ionic species pertaining to the isomerization,...

article 2019

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Translucent, color-neutral and efficient perovskite thin film solar modules

Rakocevic, L. (author), Gehlhaar, R. (author), Jaysankar, M. (author), Song, W. (author), Aernouts, T. (author), Fledderus, H. (author), Poortmans, J. (author)

Thin film perovskite photovoltaic devices combine high power conversion efficiencies with low weight, large area, high speed production capabilities and high versatility in form factor. With this paper, an additional feature is added to the device property portfolio: optical transparency. Results on translucent perovskite modules with...

article 2018

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Analysis and experimental validation of the figure of merit for piezoelectric energy harvesters

Deutz, D.B. (author), Pascoe, J.A. (author), Schelen, B. (author), van der Zwaag, S. (author), de Leeuw, D.M. (author), Groen, P. (author)

Piezoelectric energy harvesters are at the front of scientific research as enablers of renewable, sustainable energy for autonomous wireless sensor networks. Crucial for this disruptive technology is the achievable output power. Here we show, analytically, that the maximum output energy per unit volume, under a single sinusoidal excitation, is...

article 2018

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Reconsidering figures of merit for performance and stability of perovskite photovoltaics

Khenkin, M.V. (author), Anoop, K.M. (author), Visoly-Fisher, I. (author), Galagan, Y. (author), Di Giacomo, F. (author), Patil, B.R. (author), Sherafatipour, G. (author), Turkovic, V. (author), Rubahn, H.G. (author), Madsen, M. (author), Merckx, T. (author), Uytterhoeven, G. (author), Bastos, J.P.A. (author), Aernouts, T. (author), Brunetti, F. (author), Lira-Cantu, M. (author), Katz, E.A. (author)

The development of hybrid organic-inorganic halide perovskite solar cells (PSCs) that combine high performance and operational stability is vital for implementing this technology. Recently, reversible improvement and degradation of PSC efficiency have been reported under illumination-darkness cycling. Quantifying the performance and stability of...

article 2018

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Characterization of nano-porosity in molecular layer deposited films

Perrotta, A. (author), Poodt, P. (author), van den Bruele, F.J. (author), Kessels, W.M.M. (author), Creatore, M. (author)

Molecular layer deposition (MLD) delivers (ultra-) thin organic and hybrid materials, with atomic-level thickness control. However, such layers are often reported to be unstable under ambient conditions, due to the interaction of water and oxygen with the hybrid structure, consequently limiting their applications. In this contribution, we...

article 2018

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In situ TEM observation of the Boudouard reaction: Multi-layered graphene formation from CO on cobalt nanoparticles at atmospheric pressure

Bremmer, G.M. (author), Zacharaki, E. (author), Sjåstad, A.O. (author), Navarro, V. (author), Frenken, J.W.M. (author), Kooyman, P.J. (author)

Using a MEMS nanoreactor in combination with a specially designed in situ Transmission Electron Microscope (TEM) holder and gas supply system, we imaged the formation of multiple layers of graphene encapsulating a cobalt nanoparticle, at 1 bar CO:N2 (1:1) and 500 °C. The cobalt nanoparticle was imaged live in a TEM during the Boudouard reaction....

article 2017

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Protecting patches in colloidal synthesis of Au semishells

Mann, D. (author), Voogt, S. (author), van Zandvoort, R. (author), Keul, H. (author), Möller, M. (author), Verheijen, M. (author), Nascimento-Duplat, D. (author), Xu, M. (author), Urbach, H.P. (author), Adam, A.J.L. (author), Buskens, P. (author)

Protecting groups are commonly applied in multi-step molecular syntheses to protect one or multiple functional groups from reacting. After the reaction, they are removed from the molecule. In full analogy to this concept, we report the practical and scalable colloidal synthesis of Au semishells using polyphenylsiloxane protecting patches to...

article 2017

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Solid-state-processing of δ-PVDF

Martín, J. (author), Zhao, D. (author), Lenz, T. (author), Katsouras, I. (author), de Leeuw, D.M. (author), Stingelin, N. (author)

Poly(vinylidene fluoride) (PVDF) has long been regarded as an ideal piezoelectric 'plastic' because it exhibits a large piezoelectric response and a high thermal stability. However, the realization of piezoelectric PVDF elements has proven to be problematic due to, amongst other reasons, the lack of industrially scalable methods to process PVDF...

article 2017

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Progress, challenges and perspectives in flexible perovskite solar cells

Di Giacomo, F. (author), Fakharuddin, A. (author), Jose, R. (author), Brown, T.M. (author)

Perovskite solar cells have attracted enormous interest since their discovery only a few years ago because they are able to combine the benefits of high efficiency and remarkable ease of processing over large areas. Whereas most of research has been carried out on glass, perovskite deposition and synthesis is carried out at low temperatures (...

article 2016

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Transition dipole moment orientation in films of solution processed fluorescent oligomers: Investigating the influence of molecular anisotropy

Senes, A. (author), Meskers, S.C.J. (author), Dijkstra, W.M. (author), van Franeker, J.J. (author), Altazin, S. (author), Wilson, J.S. (author), Janssen, R.A.J. (author)

The low light-outcoupling efficiency of organic light emitting diodes (OLEDs) is limiting their performance. Orientation of the transition dipole moment of the emitting molecules in the plane of the diodes can improve the luminance of OLEDs. While the orientation of evaporated small-molecule materials has been studied in the past few years, not...

article 2016

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Continuous flow synthesis and cleaning of nano layered double hydroxides and the potential of the route to adjust round or platelet nanoparticle morphology

Flegler, A. (author), Schneider, M. (author), Prieschl, J. (author), Stevens, R. (author), Vinnay, T. (author), Mandel, K. (author)

Here, we report a continuous flow synthesis of nano LDH, comprising a continuous precipitation process using static mixers and followed by an immediate cleaning process via a semi-continuous centrifuge to obtain the final product in one-go. Via this synthesis setup, it is possible to independently vary the concentrations of the reactants during...

article 2016

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Towards the scaling up of perovskite solar cells and modules

Galagan, Y. (author), Coenen, E.W.C. (author), Verhees, W.J.H. (author), Andriessen, R. (author)

A direct current (DC) simulation for perovskite solar cells with different dimensions was performed. The theoretical results demonstrate a good agreement with experimental data, indicating the reliability of the performed simulation. A theoretical model was applied for the investigation of large area devices with different sheet resistances of...

article 2016