Materials Literature
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The study of the standard formation enthalpy, entropy, and heat capacity for key species relevant to the low-temperature combustion of cyclohexane has been performed by applying the group additivity method of Benson. The properties of 18 Benson groups (8 of them for the first time), and 10 ring correction factors for…
Aromatic donor–acceptor stacking involving electron-rich π-donors and electron-deficient π-acceptors has been utilized in a broad spectrum of diverse applications to great effect.
Metallosilicates (metal = Al, Ti, Zr, V and Ce) and silica supports were synthesized by a one-pot surfactant-free process for use in cobalt-based Fischer–Tropsch catalysts. The in-depth physical, chemical, and textural properties of all supports were determined by several characterization techniques. The introduction…
A new boron-induced deeper acceptor level (퐷∗-center) different from the D-center in nitrogen-boron co-doped 6H fluorescent silicon carbide (f-SiC) is revealed by measuring the temperature-dependent photoluminescence (PL). The 퐷∗-center is correlated to the dominate donor-acceptor-pair (DAP) recombination at low tempe…
Controlling the motion of magnetic domain walls (DWs) in ultrathin films with perpendicular magnetic anisotropy (PMA) has opened perspectives for mass-storage applications such as ``racetrack memory''. However, a crucial issue for this technology is to efficiently move and store domain walls along very narrow wires. T…
Abstract The gas‐phase ozonolysis reaction of methylbutenol through the Criegee mechanism is investigated. The initial reaction leads to a primary ozonide (POZ) formation with barriers in the range of 10–28 kJ mol−1. The formation of 2‐hydroxy‐2‐methyl‐propanal (HMP) and formaldehyde‐oxide is more favorable, by 10 kJ…
Nowadays, Hybrid Perovskite materials perform a major role in solar cell industry due to their superior power conversion ability. CH3NH3PbI3 is the prominent material in hybrid perovskite, where they comprised with advanced photovoltaic properties. But considering the toxicity, it’s more important to observe the role…
O processo de produo de celulose gera diversos resduos, dentre eles o material resultante da depurao como o UKP (Unbleach Kraft Pulp). O emprego desses resduos na fabricao de produtos pode agregar valor e solucionar problemas ambientais, alm de contribuir para o desenvolvimento de novas tecnologias. O objetivo deste t…
The research was carried out to ascertain the feasibility of preparing paneer from milk blend containing low pressure homogenized milk to avail the benefits rendered by homogenization. Standardized milk was subjected to two-stage homogenization (4.90 and 0.98 MPa respectively) and then blended with unhomogenized stand…
Aim of study: The objectives of this research were to determine the effectiveness of melamine impregnated paper (MIP) waste as an adhesive in the particleboard manufacturing and effects of the MIP waste using as an adhesive on the some technological properties of particleboard. Area of study: To determine the mechanic…
The antibiotic penicillin G cannot be completely incorporated into hydrophobic lipid-membranes owing to its hydrophilicity. Through modification with a hydrophobic and photolabile protecting group, penicillin G was effectively incorporated into liposomes and released by photoirradiation at 365 nm.
The In My Element series celebrates the personal accounts from Chemistry – A European Journal Editorial Board members for the 2019 International Year of the Periodic Table. In this contribution, Younan Xia gives his story on silver.
Scanning electron microscopy in ambient conditions (Air-SEM) was developed recently and has been used mainly for industrial applications. We assessed the potential application of Air-SEM for the analysis of biological tissues by using rat brain, kidney, human tooth, and bone. Hard tissues prepared by grinding and froz…
Abstract Ricinoleic acid, extracted from the castor bean, is a cheap, abundant and naturally sourced capping agent for nanocrystals that offers the ability to functionalise the as‐synthesized nanocrystals through the use of the hydroxyl group, an advantage over oleic acid obtained from olives. In this work, we demonst…
Abstract In this work, the spark plasma sintering (SPS) of commercial yttria nanopowder is investigated. The SPS parameters such as sintering temperature, applied pressure, and dwell time are varied. Densification without grain growth occurring at occurred up to a sintering temperature of 1400°C and grain growth witho…
In today's highly integrated microelectronic systems there is a need for high-resolution spatial temperature measurement on chips. The resolution requirements are higher than the infrared imaging systems are capable of, and the investigated areas of the chips are often too large for most common scanning thermal micros…
One of the important and still current problems occurring in the fish processing industry is the intensive wear of the cutting surface of industrial cutting blades used to separate the fish raw material. In the paper, the proposes a proprietary solution to the above problem consisting in the regeneration of worn surfa…
In this paper, the diatomite mineral from Mugalzhar field, Aktobe region, has been used as a matrix of catalyst particles to synthesize multiwall carbon nanotubes (MWCNTs) by Catalytic Chemical Vapor Deposition method (CCVD). As a source of carbon was used a propane-butane gas mixture, as a catalyst – Ni particles dep…
A novel compound hexa-rhodamine substituted phosphazene (HRP) with six active centers on a cyclotriphosphazene ring was synthesized using the alkyne-azide “click” reaction. The structure of HRP was characterized using spectroscopic techniques. The optical sensor properties of HRP for metal ions were investigated using…
Abstract A fused pyrrolopyridine core having substituents on the nitrogen atom instead of the carbon atom of the indoloindole unit is developed as a new donor unit for organic electronics. The new donor–acceptor copolymers, PDHPHBT, PDHPFBT, and PDHP2FBT, are synthesized using the new donor unit, well‐known benzothiad…