Materials Literature
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Manganese is widely used in many fields. Many efforts have been made to recover manganese from low-grade pyrolusite due to the depletion of high-grade manganese ore. Thus, it is of practical significance to develop a clean, energy-saving and environmentally friendly technical route to reduce the low-grade pyrolusite.…
Five new coordination polymers (CPs), CPO-68-M (M = Zn, Mn, and Co) and CPO-69-M (M = Ca and Cd), were synthesized by solvothermal methods using 4,4′-dimethoxy-3,3′-biphenyldicarboxylic acid as the organic linker. The three-dimensional frameworks are formed by metal carboxylate chains that are separated by the linker.…
Structural comparison indicates that the loop region between β3 and β4 of SsArd1 is extended relative to the corresponding region in mesophilic Nats, and forms a plastic hydrogen-bond network mainly at two serine residues. Strikingly, two single-point mutants showed ∼3 °C decrease in melting temperature, and two other…
Efforts are being made to reduce carbon dioxide formation in the cement industry, and studies continue to show the effectiveness of blast furnace slag (BFS) as a cement substitute. BFS is well known for its hardening mechanism in ordinary Portland cement or for alkali activation owing to its latent hydraulic property.…
This review article discusses about various aspects that make graphene and graphene nanosheets/binary transition metal oxide (GNS/BTMO) composites apt for their use as anode materials in lithium ion batteries (LIB). GNS/BTMO composites are categorized into three types based on the type of local contact between GNS and…
Microarc oxidation (MAO) coatings exhibit loose surfaces, big micropores and porosity that lead to shortcomings in mechanical properties. Three kinds of MAO coatings were prepared on TC4 alloys (Ti–6Al–4V) in electrolyte and treated by laser surface melting (LSM) with various power densities. Compactness of the coatin…
The performance of photoresponsive organic FETs (photOFETs) intimately depends on their optical absorption and charge carrier transport property. We report on red light responsive photOFETs based on various device structures utilizing neodymium phthalocyanine (NdPc2) as the light sensitive material. PhotOFETs based on…
The United Arab Emirates (UAE) has been exploring several renewable and green technologies to help reduce the increasing pollution rates. However, its coarse climate might impose some limitations toward the types of green technologies that can be effectively deployed in the region. In the first part of this work, an i…
Einhändig fährt’s sich besser! Zur Synthese starrer molekularer Pinzetten dienten enantiomerenreine Edukte in Buchwald-Hartwig-Aminierungen. Dies machte Produkte zugänglich, die nur in eine Richtung gekrümmt sind.
The kinetics of the reaction of N2H4 with oxygen depends sensitively on the initial conditions used. In oxygen-rich systems, the rate constant shows a conventional positive temperature dependence, while in hydrazine-rich setups the dependence is negative in certain temperature ranges. In this study, a theoretical mode…
Abstract Exploring reactions of methanol on TiO2 surfaces is of great importance in both C1 chemistry and photocatalysis. Reported herein is a combined experimental and theoretical calculation study of methanol adsorption and reaction on a mineral anatase TiO2(001)‐(1×4) surface. The methanol‐to‐dimethyl ether (DME) r…
Pentablock copolymers PMA-PPO-PEO-PPO-PMA synthesized via atom transfer radical polymerization (ATRP) were self-assembled with varying amounts of γ-CDs to prepare poly(pseudorotaxanes) (PPRs). When the concentration of γ-CDs was lower, the central PEO segment served as a shell of the micelles and was preferentially be…
Inspection of corroded engineering components is vital for ensuring safety throughout the lifetime of infrastructure. However, full inspection can be infeasible due to time constraints, budgetary limits or restricted access. Subsequently there is growing interest in partial coverage inspection (PCI) techniques which u…
Flavonoids are a group of plant secondary metabolites including polyphenolic molecules, and they are well known for antioxidant, anti-allergic, anti-inflammatory and anti-viral propertied. In general, flavonoids are detected with various non-colorimetric detection methods such as column liquid chromatography, thin-lay…
For Co 2 Fe 6 B 2 –MgO based p-MTJ spin valves with [Co/Pt] n –SyAF layers ex situ annealed at 350 °C and 30 kOe for 30 min, the tunneling magneto-resistance (TMR) ratio strongly depended on the radio-frequency (RF) sputtering power in a 0.65–1.15 nm thick MgO tunneling barrier, achieving a TMR ratio of 168% at 300 W.
Abstract A series of novel biaryl ureas containing different structural patterns have been prepared in good yields in the presence of palladium nanoparticles (PdNPs) with narrow particle size distribution. In particular, α, β‐, and γ‐hydroxypropylated cyclodextrins were used as reductants/stabilizers under different P…
Abstract Controllable and sensitive perception of environmental changes is essential for the development of smart material and device systems. Herein, a multi‐stimuli sensitive responsor has been fabricated on the base of the established double‐helix core‐sheath graphene‐based microfibers (GFs). By combining the tunab…
Geranyl-CoA carboxylase (GCC) is essential for the growth of Pseudomonas organisms with geranic acid as the sole carbon source. GCC has the same domain organization and shares strong sequence conservation with the related biotin-dependent carboxylases 3-methylcrotonyl-CoA carboxylase (MCC) and propionyl-CoA carboxylas…
In the current work, pristine α-Fe2O3 metal oxide was doped with Mg in an attempt to modulate its electronic properties. To this end, we employed an experimental high throughput strategy, including scanning XRD and optical spectroscopy, which were complimented by atomistic density functional theory (DFT) calculations.…
The sequence structure of polymers plays an important role in determining their performance. However, existing polycarboxylates mostly have a broad molecular weight distribution and the sequence structure is randomly distributed. In this work, a novel water-soluble block copolymer made of poly(ethylene glycol) methyl…