Materials Literature
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When the dimensions decrease to nano-scale, many essential phenomena appear which are not important at macro scales. In this paper, two effects of these sub-micron phenomena are demonstrated and considered for simulation of pull-in instability of beam-type nano-actuator. The first phenomenon that becomes important at…
Author: Schlichtenmayer, M. et al.; Genre: Journal Article; Issued: 2011; Keywords: MPI für Metallforschung; Abt. Schütz; ; Title: Hydrogen physisorption in high SSA microporous materials - A comparison between AX-21_33 and MOF-177 at cryogenic conditions
Mesoporous composite materials of nitrogen-doped carbon and silica were synthesised in a one-step-process applying a soft templating procedure. The template used in the sol–gel synthesis of the silica is a cationic surfactant with distinct reactivity to form nitrogen-doped graphitic carbon upon heating. This reactivit…
While self-assembling block copolymer thin films have attracted attention as a promising high resolution lithographic tool, the self assembly of mixed polymer brushes for lithography is relatively unexplored. Here we study the directed self-assembly of a mixed polymer brush using self-consistent field theory (SCFT) si…
Well-defined nanoporous palladium (np-Pd) fabricated by a modified electrochemical dealloying procedure is demonstrated to be an excellent electrocatalyst material for reductive degradation of both carbon tetrachloride and chlorobenzene.
A precursor strategy for the synthesis and screening of a series of conjugated donor–acceptor polymers is demonstrated by successful preparation of low band-gap polymers (P2–P5) containing triphenylamine as an electron donor and several heterocycles as acceptors, such as [1,2,5]thiadiazolo[3,4-g]quinoxaline, [1,2,5]th…
A silane-derivatized tetraaza Cu2+ macrocyclic complex is prepared, which forms monolayers on glass surfaces, capable of allowing the further deposition of a stable monolayer of silver nanoparticles, obtaining by this, surfaces that display an enhanced antibacterial activity against Staphylococcus aureus and Escherich…
It was reported in our previous paper that the dispersion containing single cellulose nanofibers (= nanocellulose) was prepared from microbial cellulose pellicle using aqueous counter collision (ACC) method [1]. In this study, the nanocellulose has been investigated from the view point of a coating agent. Thus, variou…
A multifunctional nanoparticle for biological applications has been developed by combining the useful functions of quantum dots (QDs), fluorescent dyes, and organosilica particles. Dual fluorescent thiol-organosilica nanoparticles composed of QDs and a fluorescent dye in a thiol-organosilica layer were synthesized in…
In this paper, we present versatile and effective techniques to synthesise silver nanoparticles (Ag-NPs)-based compounds such as colloidal silver nanoparticles (CSNPs) and silver nanoparticles powders (SNPPs). The CSNPs stabilised by a surfactant oleic acid were produced for the first time through the reduction of [Ag…
Porous flowerlike Cu2S microspheres were synthesized through a solvothermal method employing CuCl and thiourea as Cu and S sources, respectively, and PVP as a surfactant. The as-prepared products have regular spherical shapes and uniform sizes around 1.8 µm, which are composed of 30–50 nm thick nanosheets with a lot o…
A novel [bis(2-phenylpyridyl)(pyrrole-ether bipyridyl) Ir(III)]PF6 complex bearing pyrrole groups was synthesized, characterized and electropolymerized at Pt and MWCNT electrodes. MWCNT deposits present a nanostructured porous surface that induces a higher polymerization yield and enhanced surface concentration of the…
CdSe nanospheres and dendrites have been successfully synthesized via an ionic liquid-assisted hydrothermal synthetic method. The samples are characterized by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy…
Structural characterisation of Ag2Nb4O11 and Ag2Ta4O11 powders has been carried out by Rietveld refinement of neutron powder diffraction data in the temperature range 10–573 K, symmetry-adapted mode analysis and second-harmonic generation. Ag2Nb4O11 ceramics appear to be ferroelectric with a maximum permittivity of ∼1…
Chitosan hydrogels are of considerable interest in synthetic biomimetic mineralisation strategies due to their favourable characteristics such as the presentation of a large surface area for crystal nucleation within a structured yet responsive scaffold. Chitosan hydrogels were prepared and subsequently calcium carbon…
In the present work, we have studied the aggregation of gold nanoparticles (Au-NPs) induced by a cationic perylene probe (compound 1). The compound 1 free monomer contains a large planar aromatic ring structure that could be efficiently adsorbed onto the surface of the Au-NPs. The strong π–π stacking and hydrophobic i…
Self-healing coatings, which autonomically repair and prevent corrosion of the underlying substrate, are of particular interest for the researchers. In the article, effectiveness of epoxy resin filled microcapsules was investigated for healing of cracks generated in coatings. Microcapsules were prepared by in situ pol…
Design and synthesis of Au nanocages is one of the basic interests in the fabrication of nanoscale structures due to their attractive potentials in catalysis, medical science and so on. In most cases, spherical or cubic Au nanocages were fabricated using silica nanoparticles or Ag nanocubes as templates. In this artic…
The dynamics and bonding of the complex hydrides LiBH4 and LiAlH4 have been investigated by vibrational spectroscopy. The combination of infrared, Raman, and inelastic neutron scattering (INS) spectroscopies on hydrided and deuterided samples reveals a complete picture of the dynamics of the BH4- and AlH4 anions respe…
This work aims to develop a controlled strategy for the growth of multifunctional core@shell nanoparticles based on Prussian blue analogues. We mainly focussed our attention on Rb0.45Co[Fe(CN)6]0.8·3H2O@Rb0.2Ni[Cr(CN)6]0.7·zH2O particles, which combine a photoswitchable (photo-magnetic/-chromic) core with a ferromagne…