Materials Literature
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Hydrodeoxygenation (HDO) of methyl heptanoate was performed over zirconia-supported mono- and bimetallic Rh and Pt catalysts in a batch reactor. The Rh/ZrO 2 catalyst gave the highest conversion and selectivity toward hydrocarbons (dominantly hexane) at 250 °C and 8 MPa of H 2 . The formation of alkenes was not detect…
The present study reveals that the fully miscible binary mixtures consisting of tert-butanol with aprotic solvents form well-defined ordered supermolecular structures, which have been characterized on different length scales. Three different types of microstructures have been determined. They are separated by distinct…
Abstract In monomer miniemulsions, droplet size is a key parameter impacting the optical properties, and consequently their photopolymerizability under UV light. Three simple spectrophotometric methodologies are developed, based on an integrating sphere, to evaluate precisely the effect of droplet size on radiation ab…
Research Article| September 01, 2013 Comparison of microstructures in superplastically deformed synthetic materials and natural mylonites: Mineral aggregation via grain boundary sliding Takehiko Hiraga; Takehiko Hiraga 1Earthquake Research Institute, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan S…
Skeletal muscle defects are notoriously difficult to manage and the current methods used are associated with many limitations. Engineered skeletal muscle tissue has the potential to provide a solution that circumvents these disadvantages. Our previous work has identified a novel three-dimensionally aligned degradable…
Batch reactive distillations are commonly used unit operations in the pharmaceutical industry to drive chemical equilibrium reactions to completion. Their scale-up and transfer to manufacturing is not straightforward due to the interplay of scale dependent and scale independent phenomena. The increased process knowled…
Metal complexes of general composition [M(L)2]X2 (where M = Cu(II) and X = Cl−, NO3-) and [M(L)2]X3 (where M = Fe(III) and X = Cl−, NO3-) were synthesized by the condensation of metal salts with semicarbazone (La)/thiosemicarbazone (Lb) derived from 2-acetyl benzofuran. The ligands and metal complexes were characteriz…
Modeling of coupled plastic flows and strain-induced phase transformations (PTs) under high pressure in a diamond anvil cell is performed with the focus on the effect of the contact sliding between sample and anvils. Finite element software abaqus is utilized and a combination of Coulomb friction and plastic friction…
Au nanoparticle decorated SrTiO 3:Nb (Au/SrTiO 3:Nb) has been demonstrated as a photoanode for photo-oxidation under visible light. The visible light photo-oxidation is a result of the generation of the hot electrons in the Au nanoparticles, which are subsequently injected into the SrTiO 3:Nb conduction band. This lea…
We experimentally demonstrate that some peptides and proteins lend themselves to an elementary analysis where their first hyperpolarizability can be decomposed into the coherent superposition of the first hyperpolarizability of their elementary units. We then show that those elementary units can be associated with the…
Am T-Stück angesetzt: Poly-T-Einzelstrang-DNA (blau, siehe Schema) dient als Templat für die Bildung fluoreszierender Kupfernanopartikel (CuNPs, rote Kugeln). Größe und Fluoreszenz der CuNPs sind über die Länge der Poly-T-Sequenz einstellbar. Andere Einzelstrang-DNAs (grün) sind keine geeigneten Template für CuNPs und…
Understanding interaction mechanisms between porous sorbents and organic compounds is important in selecting or custom-synthesizing an appropriate sorbent. In this study, sorption isotherms of a set of 14 (XAD-4&7) or 11 (MN200) aromatic compounds were measured for three nonionic resins, and a phase conversion approac…
S3 is one of the basic allotropes of sulfur but is still a mysterious labile species. We selectively trapped S3 in a pore of a thermally stable coordination network and determined S3 structure by ab initio X-ray powder diffraction analysis. S3 in a pore has a C2v bent structure. The network containing trapped S3 is re…
Modification effects of porphyrin dyes on the photocatalytic activity of tantalum (oxy)nitride (TaON) were investigated. The nitrogen content in tantalum (oxy)nitride was increased by increasing the heat treatment period. The optimized nitridation conditions were found to be calcination at 800 °C for 14 h under a NH3…
Oxygen conversion process between O₂ and H₂O by means of electrochemistry or photochemistry has lately received a great deal of attention. Cobalt-phosphate (Co-Pi) catalyst is a new type of cost-effective artificial oxygen-evolving complex (OEC) with amorphous features during photosynthesis. However, can such Co-Pi OE…
The multilevel switching of conductive bridge resistive memory is characterized by the ON-state resistance (R ON) being inversely proportional to the compliance current (I CC). The constant of this relation is shown to be universally correlated to the minimum SET voltage (V SET(min)) for all conductive bridge devices.…
ABSTRACT The time‐dependent IR spectra during dehydration of fully hydrated Nafion show the reversible disappearance of the 1061 cm−1 and 969 cm−1 concurrent with the emergence of peaks at ∼928 cm−1 and ∼1408 cm−1. The first pair of group modes is associated with a dissociated exchange group (sulfonate) with a local C…
Chinoide Rylene in Biradikaloiden: Die löslichen und beständigen Verbindungen Tetracyanquaterrylenchinodimethan (QR-CN) und Tetracyanhexarylenchinodimethan (HR-CN) wurden synthetisiert. Während QR-CN im Grundzustand eine geschlossenschalige Chinoidstruktur aufweist, ist es für HR-CN ein Singulett-Biradikal. Beide Verb…
Alles in Ordnung: Die Selbstorganisation von nanokristalliner Cellulose (NCC) mit Hydrogelmonomeren ergibt Nanokomposite mit chiral-nematischer Fernordnung. Die Kombination der chiralen Struktur mit dem Quellverhalten von Hydrogelen resultiert in einem Schillern, das durch verschiedene Reize kontrolliert werden kann.
Higher dielectric constant, lower dielectric loss, and good processing characteristics have been the goal for developing high- k materials in actual cutting-edge applications. The distribution, motion, and the rearrangement of space charges are the key factors in determining the dielectric properties of a material; ho…