Materials Literature
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Cobalt-containing zeolitic imidazolate frameworks (Co-ZIF-9) have recently emerged as efficient imidazolate motifs for CO₂ adsorption and activation. Herein, we adopt an imidazolate motif as a cocatalyst for TiO₂ based CO₂ photoreduction. Co-ZIF-9/TiO₂ (denoted as ZIFₓ/T) composite materials were firstly synthesized v…
The selective catalytic oxidation of ammonia to nitrogen (NH₃–SCO) was investigated over MnOₓ–TiO₂. The physicochemical properties of MnOₓ–TiO₂ were characterized by XRD, O₂-TPD, NH₃-TPD, H₂-TPR and XPS, and the reaction mechanism was studied by in situ DRIFTS. The addition of Mn into TiO₂ accelerated the support phas…
Pancreatic cancer is the fourth leading cause of all cancer-related deaths in the United States, fifth in the UK and eighth worldwide. It is a highly lethal disease (the 5-year survival rate is only 6%) with poor prognosis. Additionally, while the mortality of other types of cancers is declined, pancreatic cancer’s mo…
Preferential weld corrosion occurs in the hydrocarbon carrying pipelines due to CO2 presence. The weld segments consist of parent metal, HAZ and weld metal that causes corrosion due to potential difference. The corrosion could be mitigated with the formation of protective layer (FeCO3). However, the mitigation has not…
Underground pipelines are the most preferable way to transport oil and gas over a long distance. These steel pipelines often suffered from several deteriorations including corrosion. Corrosion causes the outer lining of a pipeline to thin and subsequently reducing pipeline strength. In order to prevent this loss of st…
C60 fullerene crystals may serve as important catalysts for interstellar organic chemistry. To explore this possibility, the electronic structures of free standing powders of C60 and C59N 2 azafullerenes are characterized using X ray microscopy with near edge X ray adsorption fine structure NEXAFS spectroscopy, closel…
In an effective field theory framework we review the two main mechanisms of quarkonium dissociation in a weakly coupled thermal bath.
Antimicrobial activity of silver nanoparticles against Salmonella typhimurium was investigated under both in vitro and in vivo conditions. Salmonella typhimurium-infected rats were used for this study. The infection and treatment were followed by biochemical analysis [liver and kidney functions, immunoglobulins (IgM,…
Load-bearing elements of oil heating installation in the shape of rods, as well as load-bearing elements of gas-generator plants, internal combustion engines, flight-type engines, and hydrogen engines work in a complex thermal and force field. To ensure the reliability of these installations, it is necessary to provid…
shifts for all examined dyes were positive mainly due to electrostatic interaction. The optimal conditions for the a a K p shifts determination also are considered.
The present study was aimed to carry out a green synthesis of Silver Nano Particless by using marine micro algae and its characterization by SEM, EDAX, Particle analyzer and Zeta potential. Microalgae samples (Isochrysis galbana and Nannochloropsis sp.) were collected from phytoplankton laboratory, Tuticorin Research…
Detailed reaction schemes are required to gain a more fundamental understanding of biomass pyrolysis, which would in turn allow the process to be controlled in a more precise way and the development of more targeted applications. The most promising detailed pyrolysis reaction scheme so far published is the one develop…
To produce prototypes with mechanical properties expectable from EN AC 46000 HPDC components, prototyping related processes such as sand and plaster gravity casting as well as proper alloying and post solidification processes need to be understood and adjusted. Therefore, the influence of process, composition and heat…
Since its first introduction in 1998, extruded direct current (DC) cable technology has been growing rapidly leading to many cable system installations with operation voltages up to 320 kV. Cable manufacturers invest heavily on technology development in this field and today extruded DC cable systems for operation volt…
The diversified c-Si materials market is dominated by high-performance multicrystalline (HPmc) wafer. This material is characterized by a large number of small grains while these grains exhibit a strongly reduced density of structural intra-grain defects. Thus, solar cells made of HPmc-wafer can show a significantly i…
Polymer nanocomposite has attracted many researchers’ recently in which the materials were applied as insulation material since 21st century. Polymer nanocomposite was given more attention because of the material properties that can be drastically improved by adding a few percent of nano-sized filler. SiO2 and TiO2 th…
International audience
Структуру легованих азотом плівок TiO2 і їхню здатність до адсорбції молекул води було визна- \nчено за допомогою вимірів XPS і квантово-хімічних розрахунків. Квантово-хімічні розрахунки повної \nенергії оптимізованих геометричних структур різного розміру моделей кластера TiO2 – TiO2(N) (від \n3 до 9 атомів титану) пр…
To investigate the dynamic performance of wheel profiles of LM,S1002 and DIN5573,mainly used in metro vehicles in China,matching with profile of 60 kg/m(CHN60)rail under different rail cant conditions,a metro vehicle dynamic model was built to analyze the effect of rail cant on hunting stability of the vehicle,cur-vin…
We report on the electron field emission (FE) from multi-layer AlGaN nanofilm grown by pulsed laser deposition, and the investigation of the multi-layer quantum structure effect on the field emission performance. The results show that the as-grown film has a good crystallinity, and the thickness values of GaN, AlN, an…