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。
In this research barium carbonate nanoparticle with composition BaCO3 (Witherite) was prepared by using the gel-combustion (sol - gel) method. A precursor sol was obtained from barium nitrate. The molar ratio of citrate/nitrate=1.3 (CA/NO-3 =1.3) was used to prepare very fine powders of barium carbonate. The gels resu…
Water dispersible nanostructured multifunctional polyaniline-laponite-keggin iron cation composites (PPIL) were prepared by the oxidative polymerization of aniline in the presence of an aqueous dispersion of keggin iron-laponite (PIL) at room temperature. Negatively charged ions on the surface and residual positive ch…
The inhibitive property of green plant inhibitor (Bambusa Arundinacea) on the corrosion of mild steel strip in 1M HCl were studied using weight loss technique. Inhibition efficiency of 72.84% at 10% v/v of extract concentration for 72 hours exposed time for Bambusa arundinacea was achieved. Adsorption of the inhibitor…
(Pb,Sr)TiO3 (PST) is a typical nonlinear dielectric material with its permittivity tunable under DC bias. In this context, randomly oriented and (100) oriented PST thin films have been prepared by the sol–gel method. A dipole azimuth dependent behavior is exhibited in the PST thin film through investigation of dielect…
Two new 3-D isomorphous lanthanide(III) compounds [Eu2(H2L)2(C2O4)2]·2.51H2O (1) and [Tb2(H2L)2(C2O4)2]·2.46H2O (2, H3L = glyphosate), based on glyphosate and oxalate have been successfully synthesized under hydrothermal conditions, and structurally characterized. In the two compounds, tetra-connected glyphosate ligan…
Single-walled carbon nanotube (SWNT)-porphyrin hybrid materials have received much attention due to their promising applications in photovoltaic devices, photodynamic therapy and energy conversion. Herein, three covalent amine-modified single-walled carbon nanotubes with different alkyl chain lengths have been synthes…
The influence of monoatomic steps and defects on the methanation reaction over ruthenium has been investigated. The experiments are performed on a Ru(0 1 54) ruthenium single crystal, which contains one monoatomic step atom for each 27 terrace atoms. The methanation activity is measured at one bar of hydrogen and CO i…
Utilization of excess glycerol supplies derived from the burgeoning biodiesel industry has recently become very important. Glyceric acid (GA) is one of the most promising glycerol derivatives, and it is abundantly obtained from glycerol by a bioprocess using acetic acid bacteria. In this study, a novel branched-type p…
PANI-nano TiO 2 composite coatings on a steel electrode have been successfully electrosynthesized from aniline in aqueous oxalic acid solution containing nano TiO 2 using cyclic voltammetry. Formation of the PANI-TiO 2 coating was found to be strongly dependent on the number of cycles. Smooth and strongly adherent PAN…
Nitrogen-alloyed low-carbon grade type 316L(N) SS is the principal material for high temperature structural components of the Prototype Fast Breeder Reactor (PFBR). Creep, and low cycle fatigue (LCF) properties of 316L(N) stainless steel base metal, weld metal and weld joints have been evaluated and found to fully mee…
We present in this work a study of the electrochemical behaviour of terthiophene and its corresponding polymer, which is obtained electrochemically as a film by cyclic voltammetry (CV) on platinum electrode. The analysis focuses essentially on the effect of two solvents acetonitrile and dichloromethane on the electroc…
Introducti onFrance has a long history of R&D, construction and operation of fast neutron reactors.However, with the shutdown of Superphenix reactor more than 10 years ago and of Phenix in 2009, we are now entering a phase where we must convince that fast neutrons reactors are part of t he energy solution for the futu…
In this study, antimony (6 wt %)-doped tin oxide (ATO) films were prepared on a poly(ether sulphone) (PES) flexible substrate by radio frequency (RF) magnetron sputtering at room temperature, with varying deposition parameters such as RF power and working pressure. The RF power was varied from 50 to 150 W in steps of…
A simple plasma-based, low temperature etch process is described, which allows subtractive etching of copper (Cu) films and thereby offers an alternative to damascene technology for microelectronic and integrated circuit device fabrication. Hydrogen (H2)-based plasma etching of blanket and SiO2 masked Cu thin films is…
Mirrorlike tungsten thin films on stainless steel substrate deposited via pulsed laser deposition technique in vacuum (10(-5) Torr) is reported, which may find direct application as first mirror in fusion devices. The crystal structure of tungsten film is analyzed using x-ray diffraction pattern, surface morphology of…
The structural variations of dynamic combinatorial mesophases are investigated in dilute aqueous solutions by a combination of small-angle-neutron, X-ray, and light scattering. The supramolecular structures are composed of self-assembled dynamic covalent hydrophobic and hydrophilic blocks (Dynablocks), linked together…
In 2010, 58 Pressurized Water Reactors are in operation in France, including 34 units of 900 MWe, 20 units of 1300 MWe, and 4 units of 1450 MWe. A regulatory surveillance program is ongoing for all these reactors. Up to now, it has provided embrittlement data for irradiation doses over those expected after 40 years of…
We have successfully synthesized the colossal dielectric constant oxide La2−xSrxNiO4 in thin film form by reactive cosputtering from metallic targets and careful annealing protocols. Composition and phase purity was determined through energy dispersive spectra and x-ray diffraction, respectively. The dielectric consta…
We have grown Ge3Mn5 clusters by codepositing germanium and manganese atoms on Ge(001) substrates using low temperature molecular beam epitaxy and further annealing the films at high temperature. Clusters are spherical and randomly distributed in the germanium film in epitaxial relationship with the diamond lattice. T…
This paper presents a method to improve the performance of supercapacitors fabricated using binderless composite electrode monolith (BCMs) from self‐adhesive carbon grains (SACG) of fibers from oil palm empty fruit bunches. The BCMs were prepared from green monoliths (GMs) contain SACG, SACG treated with KOH (5 % by w…