Materials Literature
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A review is given of the field of mineral colloidal liquid crystals: liquid crystal phases formed by individual mineral particles within colloidal suspensions. Starting from their discovery in the 1920s, we discuss developments on the levels of both fundamentals and applications. We conclude by highlighting some promi…
Lignite is widely used as the fuel for coal-fired power plants, and its flue gas temperature is about 50–100 °C higher than others. V 2 O 5 –WO 3 /TiO 2 is extremely restricted in the selective catalytic reduction (SCR) of NO from the coal-fired power plants burning lignite due to the drop of NO x conversion, low N 2…
Anisotropic silver nanoparticles were coated on silk fibers to obtain colorful silk with good antibacterial properties. Different morphologies of silver nanoparticles gave different colors to the silk fibers, because of changes in the localized surface plasmon resonance of the nanoparticles. More efficiently, mixing o…
We consider a two-dimensional honeycomb lattice of metallic nanoparticles, each supporting a localized surface plasmon, and study the quantum properties of the collective plasmons resulting from the near-field dipolar interaction between the nanoparticles. We analytically investigate the dispersion, the effective Hami…
Molecular dynamic simulations are performed to investigate the mechanical properties of hybrid graphene and hexagonal boron nitrogen (h-BN) sheet with the concentration of BN ranging from 0% to 100%. We find that Young's modulus of the hybrid sheet decreases with increasing concentration of BN, irrespective of BN shap…
Magnetic clusters, i.e., assemblies of a finite number (between two or three and several hundred) of interacting spin centers which are magnetically decoupled from their environment, can be found in many materials ranging from inorganic compounds and magnetic molecules to artificial metal structures formed on surfaces…
We present neutron spin echo experiments that address the much debated topic of dynamic phenomena in polymer melts that are induced by interacting with a confining surface. We find an anchored surface layer that internally is highly mobile and not glassy as heavily promoted in the literature. The polymer dynamics in c…
Abstract Organic coatings based on inhibitor loaded inorganic containers for smart corrosion inhibition are presented. The overall coating performance is strongly influenced by the containers as well as their inhibitor capacity, compatibility with the coating matrix, and size. The important effect of container size is…
Abstract Polymer‐based magnetoelectric (ME) materials are an interesting, challenging and innovative research field, that will bridge the gap between fundamental research and applications in the near future. Here, the current state of the art on the different materials, the used configurations for the development of s…
Nanoparticles have received enormous attention as a promising tool to enhance target-specific drug delivery and diagnosis. Various in vitro and in vivo techniques are used to characterize a new system and predict its clinical efficacy. These techniques enable efficient comparison across nanoparticles and facilitate a…
We present the first experimental demonstration of zero backscattering from nanoparticles at optical frequencies as originally discussed by Kerker et al. [ Kerker , M. ; Wang , D. ; Giles , C. J. Opt. Soc. A 1983 , 73 , 765 ]. GaAs pillars were fabricated on a fused silica substrate and the spectrum of the backscatter…
Recent studies have reported an interesting class of semiconductor materials that bridge the gap between semiconductors and half-metallic ferromagnets. These materials, called spin gapless semiconductors, exhibit a band gap in one of the spin channels and a zero band gap in the other and thus allow for tunable spin tr…
Using first-principles calculations, we propose a two-dimensional diluted magnetic semiconductor: monolayer MoS${}_{2}$ doped by transition metals. Doping of transition metal atoms from the IIIB to VIB groups results in nonmagnetic states, since the number of valence electrons is smaller or equal to that of Mo. Doping…
Supercapacitors are a relatively new energy storage system that provides higher energy density than dielectric capacitors and higher power density than batteries. They are particularly suited to applications that require energy pulses during short periods of time, e.g., seconds or tens of seconds. They are recommended…
On account of their intriguing mechanical properties, low cost, and renewable nature, high-aspect-ratio cellulose nanocrystals (CNCs) are an attractive component for many nanomaterials. Due to hydrogen bonding between their surface hydroxyl groups, unmodified CNCs (H-CNCs) aggregate easily and are often difficult to d…
The purpose of this study is to develop mathematical reduced order models for components of low consumption motor vehicles : the lean NOx trap and the SCR catalysts, used in the exhaust of Diesel engines and involved in the reduction of pollutants in exhaust emissions. These systems have in common that they aim at con…
Dendrite growth velocities are measured as a function of undercooling on Al–Ni alloys utilizing electromagnetic levitation. Various compositions were investigated. Whereas on the Ni-rich side, growth velocity increases with increasing undercooling, Al-rich alloys show an unusual decrease in growth velocity with increa…
The Granitic monumental objects under consideration had been located on the site of Pharos (between 2nd century BC and 14th century AD), but had fallen into sea water after serial destruction by earthquakes. The site is now underwater just off the shore of Alexandria. At the end of last century many of these objects w…
The surface treatment of spherical silica particles using a glycidoxy or amino functional silane coupling agent was conducted and the effect of the alkoxy group number on the molecular mobility of the silane chain with multilayer coverage was investigated by ¹H pulse nuclear magnetic resonance. The silica particles we…
We have detected type I collagen in mural paintings excavated from the underground burial chamber of Idout in the Saqqara region of Egypt. Proteins extracted from the debris of wall paintings were separated by gel-electrophoresis, digested by trypsin, and analyzed by matrix-assisted laser desorption/ionization mass sp…