The reaction of OH radicals with ethylene (CH2CH2) and formaldehyde (CH2O) molecules with and without water have been investigated using ab initio/DFT potential energy surfaces (PESs) at CCSD(T)/aug-cc-pVTZ//BHandHLYP//aug-cc-pVTZ levels of theory. The rate coefficients for the bimolecular react...

Reactions of fuel derived radicals, R, and oxygen, are of interest for low temperature combustion and autoignition. A method for measuring R + O2 rate coefficients based on the real time regeneration of OH radicals following initiation of the reaction via OH + RH is presented; values for kR+O2 c...

ObjectiveTo determine whether the R-enantiomer of 8-hydroxy-2-(di-n-propylamino) tetralin (R-8-OH-DPAT) alleviates respiratory depression in antelope species immobilized with etorphine. The experiment also aimed to establish the most clinically effective dose of this serotonin 5- HT1A receptor a...

MP2/6-311+G(d,p) was employed to study the mechanism of the initial step of ring opening of temozolomide (TMZ-H) and its substituted, TMZ-R (R=Cl, OH, CF3) analogues. The study reveals that the difference formation energies of substituted MTIC acids with respect to MTIC acid are ranging between ...

By employing strontium as a dopant of lanthanum cobaltite (LaCoO3), strontium-doped lanthanum cobaltite (La1 − xSrxCoO3 − δ, LSC) thin film was fabricated using a metal organic chemical solution deposition (MOCSD) method. Lanthanum nitrate hexahydrate [La(NO3)36H2O], strontium acetate [Sr(CH3CO...

Composite ceramic membrane is one of the most attractive concepts which combines the advantages of different phases into a single membrane matrix. Recently, the reported significant increased oxygen surface kinetics on the Perovskite/Ruddlesden-Popper composite system because of the formation of...

In this study, we investigate a method to fabricate high quality lanthanum strontium cobalt ferrite (LSCF) cathodes for solid oxide fuel cells (SOFCs) using a commercial low price inkjet printer. The ink source is synthesized by dissolving the LSCF nanopowder in a water-based solvent with a prop...

Mixed ionic electronic ceramic transport membranes have a large potential for industrial oxygen supply and carbon emission reduced fossil power plant concepts. Although permeation and phase stability are main development aspects, mechanical robustness is of concern especially for the long term p...

Lanthanum strontium cobalt ferrite (LSCF), a perovskite's family member, has gained much attention as the electrocatalyst for the oxygen reduction reaction (ORR) in intermediate temperature solid oxide fuel cells. However, it still needs a strategy to improve its catalytic activity. In this...

Crystalline lanthanum strontium cobalt ferrite (LSCF) was obtained by calcination at a low temperature of 500 °C from precursor nanoparticles. The precursor nanoparticles were synthesized by the citrate complex method adding oleic acid as a surfactant, and dynamic laser scattering measurements ...

MgO has been demonstrated to have positive effects on the oxygen reduction reaction (ORR) at the strontium doped lanthanum cobalt ferrite (LSCF) cathode for solid oxide fuel cells. MgO particles, which were prepared by the infiltration technique using magnesium nitrate as the precursor, are comp...

The ultra-high vacuum surface preparation of heteroepitaxial lanthanum strontium cobalt ferrite thin films has been studied using soft X-ray photoelectron spectroscopy. Specifically, the effect of annealing the films at low temperatures in low partial pressures of oxygen and argon has been inves...

There is an enormous driving force in solid oxide fuel cells (SOFCs) to reduce the operating temperatures from high temperatures (800–1000 °C) to intermediate and low temperatures (400–800 °C) in order to increase the durability, improve thermal compatibility and thermal cycle capability, an...

This study investigates hydrogen production by thermo-catalytic steam methane reforming over lanthanum strontium cobalt ferrite supported Nickel (Ni/LSCF) and commercial Ni/αAl2O3 catalysts. The Ni/LSCF catalyst was synthesized using wet impregnation method and characterized by XRD, TEM, SEM, E...

A large family of vomeronasal receptors recognizes pheromone cues in many animals including most amphibia, reptiles, rhodents, and other mammals. Humans possess five vomeronasal-type 1 receptor genes (VN1R1–VN1R5), which code for proteins that are functional in recombinant expression systems. W...

The new L-glutaminyl-L-histidyl-L-prolinamide (Gln-His-Pro(NH2)) has been synthesized. This open glutaminyl-form has been compared with the cyclized pyro-form of (pyro)Glu-His-Pro(NH2), thyrotropin releasing hormone (TRH). Gln-His-Pro(NH2) is converted into (pyro)Glu-His-Pro(NH2) under very mild...

Treatment of gem-dichlorocyclopropanecarboxylic acids with SF4 yields many rearranged products, i.e. 1,1-difluoro-substituted olefins. The mechanism of the rearrangement is discussed.

The addition of halofluorocarbenes such as :CF2, :CClF or :CBrF, generated from the appropriate halofluoromethanes with bases, to butadiene or isoprene gives the corresponding l-vinyl substituted halofluorocyclopropanes in moderate to good yield. The vinyl group facilitates the carbene addition ...

Since poly(malic acid) is a biodegradable and bioabsorbable lactic acid-type polyester having pendent modifiable carboxylic acid groups, it is of interest as a polymeric carrier of drugs. In order to provide macromolecular pro-drugs of 5-fluorouracil (5FU), and so reduce the side-effects of 5FU,...

An efficient route to dipyridone acid HIV integrase inhibitors is developed. The key steps include a one-pot three-step formation of the core template (containing one point of structural diversity) followed by a regioselective benzylation and in situ deprotection to afford the title compounds.