Materials Literature
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Synthesis of morphologically well-defined crystals of metalloporphyrin by direct crystallization based on conventional anti-solvent crystallization method without using any additives has been rarely reported. Herein, we demonstrate an unconventional and additive-free synthetic method named reverse anti-solvent crystal…
Austenitic stainless steel alloys are used in different food industry applications, including the preparation and storage of acidified carbonated soft drinks. Yet, austenitic stainless steels are not inert materials in contact with these drinks, and eventual modifications of these alloys must be investigated. Three ca…
From the elastic point of view, the twist-bend nematic phase, (NTB), has a ground state characterised by a spontaneous bend with a precession of the director n along the direction of an axis t. The tilt angle θ formed between the director n and the axis t gives rise to a heliconical structure with a nanometric helical…
Abstract In this work, Eu(III)‐based coordination polymer (EuCP) nanosheets were successfully synthesized using tetrabutylammonium bromide (TBAB) as low‐temperature molten salt (LMS), terephthalic acid (PTA) and pyromellitic acid (PMA) as organic building blocks at 160 °C. X‐ray diffraction (XRD), Fourier transform in…
Nonlinear optical single crystals of L-lysine p-nitrophenolate monohydrate (LLPNP) were grown in aqueous solution by the slow evaporation solution technique (SEST). The grown crystals were subjected to powder X-ray diffraction analysis, (PXRD) and it was found that the title compound was crystallized in the orthorhomb…
The magnetic properties of a binuclear copper(II) complex {Cu 2 (μ 2 -O 2 CCH 3 ) 4 }(OCNH 2 CH 3 ) 2 have been investigated on the basis of density functional theory with the broken symmetry (BS) approach. The magnetic coupling constant J values for the investigated complex have been calculated by different methods (…
Milling processing is an important way to obtain wood–polyethylene composite (WPC) end products. In order to improve the processing efficiency and surface quality of WPC and meet the practical application requirements, this paper focussed on morphology and roughness of the WPC-milled surface and studied surface qualit…
Density functional theory is used to calculate the energies of formation of oxygen vacancies and migration of oxygen in the monoclinic and rutile phases of vanadium dioxide. The results are compared to estimates of the parameters of activation diffusion of oxygen using data from the electron-beam modification of thin…
The photochemical induced [2+2] cycloaddition reaction is one of the most powerful means for the syntheses of cyclobutane derivatives. However the highly efficient conversion of this reaction is relatively difficult. Recent studies show that the efficiency of this reaction could be promoted by discrete assemblies in s…
In the paper, the effects of NaCl on the corrosion behaviour of T92 steel at room temperature were studied by neutral salt spray test, electrochemical technology and scanning electron microscope. The results show that the corrosion rate of T92 steel continuously increase with the NaCl concentration during the neutral…
A new sparker system based on pulsed spark discharge with a single electrode has already been utilized for oceanic seismic exploration. However, the electro-acoustic energy efficiency of this system is lower than that of arc discharge based systems. A simple electrode structure was investigated in order to improve the…
For monitoring the regenerated bioactivity of a masked bioactive compound, resveratrol (a luciferase inhibitor) was selected to target such a compound. Caged resveratrol, masked by thiochromone-type photolabile-protecting groups was synthesized in the study. Each caged resveratrol showed lower bioactivity when compare…
In this study, the self-assembly of ionic porphyrins and polyelectrolytes in dependence on the polyelectrolyte architecture and molecular mass is investigated systematically. The systems consist of tetravalent anionic meso-tetrakis(4-sulfonatophenyl)-porphyrin (TPPS), which is combined with different positively charge…
Abstract To investigate the effect of Nb on the dehydrogenation properties of Mg–Nb composite films, Mg/Nb eight‐layer film and Mg‐10 at% Nb alloy film with the similar Mg‐to‐Nb atomic ratio were prepared by magnetron sputtering. Results show that both Mg/Nb eight‐layer film and Mg‐10 at% Nb alloy film exhibit excelle…
The corrosion protection of stainless steel 304 (SS 304) in molar HCl solutions utilized by some organic compounds has been investigated by (WR) weight reduction, (EFM) electrochemical frequency modulation, (EIS) electrochemical impedance spectroscopy, (PP) potentiodynamic polarization tests and (AFM) atomic force mic…
Investigation of working pressure on the surface roughness controlling technology of glow discharge polymer films based on the diagnosed plasma, ZHANG, Ling, CHEN, Guo, HE, Zhibing, AI, Xing, HUANG, Jinglin, LIU, Lei, TANG, Yongjian, HE, Xiaoshan
Here we report on dielectric studies on Ni 3 TeO 6 . We confirm the spin‐driven pyroelectric transition at the Néel temperature ( T N ) of ∼52.5 K. The measurement of single crystalline and polycrystalline samples excludes a ferroelectric nature of the transition at T N in this compound. The excellent pyroelectric pro…
The photoluminescence, optical and physical properties of sodium borate (NB) doped with different concentrations of Dy[Formula: see text] were determined and well discussed. The samples were prepared by the melt-quenching technique and characterized by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spec…
The present study reports on the impact of abnormal grain growth (AGG) on the microstructural evolution following electron beam (EB) welding of Fe–Mn–Al–Ni shape memory alloy (SMA). Polycrystalline sheet-like material was EB-welded and a cyclic heat treatment, studied in previous work, was conducted for inducing AGG a…
A partially biobased aromatic diamine – namely, 1,1-bis(4-aminophenyl)-3-pentadecylcyclohexane (BAC 15 ) – was synthesized starting from cardanol. A series of polyimides were synthesized by one-step high-temperature solution polycondensation of BAC 15 with aromatic dianhydrides. Copolyimides were also synthesized by p…