Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The synthesis of phosphorous phthalocyanines, triazatetrabenzcorroles, and tetrabenzotriazaporphyrins with a variety of axial ligands is reported. The new complexes are: phosphorous dihydroxy tetrabenzotriazaporphyrin (5, P V (OH) 2 TBTAP), diphenyl phosphorous phthalocyanine (6, [P V (Ph) 2 Pc](OH)), diphenyl phospho…
A new restriction effect of hard templates for the shrinkage of mesoporous polymer results in anomalous increase of the mesopore size during carbonization.
Magnetite-based polyelectrolyte-coated nanostructures were fabricated and the potential for biomedical application assessed in mixed glial cell cultures with nanostructure cellular internalization, cytotoxicty and contribution to magnetic resonance contrast generation all examined.
The purpose of the present investigations is to study the feasibility of decreasing the shell wall thickness of mould cavity for economical and statistically controlled rapid casting solution of low brass alloy using three dimension printing technology. Starting from the identification of component/benchmark, technolo…
Three supramolecular architectures based on alpha-Keggin-type polyoxometalates have been synthesized hydrothermally, and their structures have been characterized by elemental analyses, infrared (IR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and single crystal X-ray diffraction structure analyses. [Ni(enMe)(…
Synthesis of gold and silver nanoparticles at room temperature using a polydimethylsiloxane (PDMS) microreactor has been reported. The reactions have been performed using aqueous metal salt solutions and borohydride reducing agent with tri-sodium citrate as the capping agent. Effect of concentration of reducing agent…
New mesogenic heteropolynuclear complexes of Cu(II), Pd(II), Ni(II) and VO(IV) with the [3]ferrocenophane‐containing Schiff's base, and Cu(II) and Pd(II) complexes with the [3]ferrocenophane‐containing β‐aminovinylketone have been synthesised. The obtained heterometallic mesogenes are identified by elemental analysis,…
A dyad of porphyrin and N-confused porphyrin is synthesized for the first time, in which an efficient excitation energy transfer as well as enhancement of emission quantum yield induced by anion binding is observed.
O interesse pela utilização de fibras vegetais como reforço para polímeros tem aumentado recentemente devido às suas vantagens ambientais e tecnológicas. Este trabalho avaliou o uso de fibras de Curauá para substituir a fibra de vidro em compósitos de poliamida-6. Teores de fibra de 0, 20, 30 ou 40 wt% e comprimento d…
The relationships between the cathode performance, the (LSCF)/Ag ratios, and the porosity of the LSCF–Ag cermet cathode were investigated. The Ag fractions in the LSCF–Ag powder were changed from 20 to 80 wt %. The microstructures of the porous LSCF–Ag cermet cathodes were observed using a scanning electron microscope…
The first nickel complexes of two carbon-substituted phthalocyanine analogues are reported; both exhibit direct Ni-C bonding and oxygen activation chemistry is observed.
The inhibition efficiency (IE) of K 3 [Fe(CN) 6 ] in controlling corrosion of carbon steel in aqueous solution containing 60 ppm of Cl -in the presence and absence of Zn 2+ has been evaluated by weight loss method. The formulation consisting of 100 ppm K 3 [Fe(CN) 6 ] and 50 ppm Zn 2+ offers 98% inhibition efficiency…
The combined effects of alkali and ultrasound treatment of wood flour on the mechanical properties of polypropylene-based wood/plastic composites (WPCs) were examined. FT-IR measurements confirmed that the alkali treatment removed both hemicellulose and lignin from the wood, and there was an increase in the number of…
Surface enhanced Raman scattering (SERS) has been used to detect specific pterin molecules at sub-nanomolar concentrations. SERS is fast becoming a widely used technique for the sensitive and specific detection of multiple analytes. The information-rich and concentration-dependent spectra obtained from SERS make the t…
We develop a mesoscopic density functional theory (DFT)-based Monte-Carlo approach for studying the phase behaviour of multi-component systems comprised of irreversibly bonded, conventional macromolecules and supramolecular entities. The latter can reversibly associate with each other and the conventional components t…
Serat sisal merupakan penguat yang menjanjikan untuk digunakan sebagai komposit karena harganya yang murah, densitasnya yang rendah, kekuatan spesifik dan modulusnya yang tinggi, tanpa resiko kesehatan serta tersedia melimpah dan merupakan bahan alam terbarukan. Pengambilan serat sisal dapat dilakukan dengan pembusuka…
A-site-doped lanthanum ferrite perovskites are considered to be promising cathode materials for the lower temperature operation of solid oxide fuel cells due to their high catalytic activity, mixed electronic and ionic conductivities at reduced temperature, and adjustable thermal-expansion coefficient. The defect chem…
Using an approximate time-dependent density functional theory method, we calculate the absorption and luminescence spectra for hydrogen passivated silicon nanoscale structures with large aspect ratio. The effect of electron confinement in axial and radial directions is systematically investigated. Excited state relaxa…
The electronic properties of multiferroic BiFeO3 with paraelectric paramagnetic phase at high-temperature and ferroelectric antiferromagnetic phase are calculated using density functional theory with spin-polarized generalized-gradient approximation (GGS) and plane wave pseudopotentials. study of Born effective charge…
The mechanical properties of Q235 steel after high temperature treatment were discussed. The hot treating temperature is 200 ℃, 400 ℃, 600 ℃, and 800 ℃, respectively. The experimental specimens were cooled in two different cooling modes, which are natural cooling mode and swamp cooling mode. After cooled, the surface…