Materials Literature
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Synthetic dyes are the major pollutants in textile industries wastewaters. Because of their toxicity and slow degradation, these dyes are environmentally hazardous materials. An efficient method for the decomposition of dyes is photocatalytic process. In order to optimize the catalytic properties of semiconductors app…
Bismuth vanadate (Bi2VO5.5- δ) ceramics, stabilized by partial substitution of V5+ with transition metal ions, exhibit high ionic conductivity at temperatures below 500°C. For use as SOFC electrolyte, the ceramic has been dismissed by some due to reports of mixed conduction at higher temperature and reducing or low pO…
Dewasa ini Negara Republik Indonesia sedang mengalami krisis energi, terutama krisis energi listrik. Gonjang-ganjing masalah subsidi Bahan Bakar Minyak (BBM) baru-baru ini tidak terlepas dari konsumsi BBM yang besar untuk pembangkit-pembangkit tenaga listrik. Salah satu upaya yang dapat diambil untuk mengatasi krisis…
Large-scale and Low-cost energy storage system is required to promote renewable energy utilization, especially for mega-solar or wind farm plants. Hydrogen will be the promising medium for large-scale storage. Toshiba has developed the hydrogen electric power storage system, which produces hydrogen using surplus elect…
The application of high-voltage cathode materials in lithium-ion batteries is of high interest to increase the batteries energy density. The cathode material LiNi0.5Mn1.5O4 is a promising candidate, but very different electrochemical results are reported in literature. After all, this differences are highly depending…
Superconducting proximity effects that are extremely long-ranged have recently been reported in manganite/cuprate thin-film heterostructures, and attributed to spin-triplet correlations involving odd-frequency pairing. To probe this novel scenario microscopically, we studied c-axis multilayer La2/3Ca1/3MnO3/YBa2Cu3O7-…
The use of different nanoparticles as seeding agents for geopolymeric binders was studied to determine the relations between the type of seeds and the geopolymers setting time, structural reorganization, compressive strength and durability. The hypothesis that seeds can act as templates for the reorganization of metak…
Thermal nanoparticles spraying were newly developed as novel technologies to create fine ceramics layers with higher deposition rates. Nanometer sized alumina particles of 200 nm in average diameter were dispersed into liquid resins at 40 % in volume fraction. The obtained slurries were solidified through heat polymer…
In this paper, the fabrication method and the formation mechanism of a new EBC system with Al2O3-HfO2 eutectic structure are discussed. A rapid heating process is required for the fabrication of Al2O3-HfO2 eutectic EBC film on silicon carbide substrate. Optical zone melting method was applied for the fabrication metho…
Thermal nanoparticle spraying was newly developed to create fine ceramic layers with a high deposition rate. Nanoparticles were dispersed into liquid resins at approximately half volume fraction, and the obtained high viscosity slurry was blown as micromist through an acetylene gas-flame spray. Microstructures were ob…
Streszczenie Wstęp
There is an ever increasing need to find alternative sources of energy in this world as oil supply becomes increasingly diminished, and because of the environmental problems. Thermoelectric devices is an alternative solution as it can be powered on waste heat. Thermoelectric materials come in di fferent forms and stru…
Chemotherapie mit Cisplatin …… führt zu leichten kognitiven Störungen, wie Gedächtnisverlust und Verwirrtheit (Chemobrain). In der Zuschrift auf S. 9187 ff. zeigen A. G. Ewing et al. mithilfe von Amperometrie und intrazellulärer elektrochemischer Cytometrie, dass niedrige Cisplatin-Konzentrationen die Freisetzung von…
Objective – To develop simple, accurate, precise and reproducible High Performance Thin Layer Chromatographic (HPTLC) method for simultaneous quantification of Oleanolic acid, 20-hydroxyecdysone and β-sitosterol in the whole plant extract of Achyranthes aspera. Methodology – In the present work a precise, accurate and…
Local charged states have been induced at the surface of lanthanum strontium manganite single crystals as result of the local bias application by a conducting atomic force microscope tip. The piezoelectric contrast is observed in these states pointing to the existence of a local polar state. The induced charged states…
Various Pt/Co nanoparticles were used as catalysts for CO2 hydrogenation by J. Zeng, Z. Wang, and co-workers. As they describe in their Communication on page 9548 ff., Pt3Co octapods were the most efficient catalysts for this process owing to the presence of multiple sharp tips (the “sharp-tip effect”) and charge tran…
Abstract: Aluminum alloy was used widely in the industrial world because it has a variety of advantages. This research was conducted to find out the influence of the silicon contents on the remelted motorcycles rim. The silicon contents of 2%, 4%, 6%, and 8% were added to the sand casting. The specimens were character…
"Perspectives in crystallography." Crystallography Reviews, 22(4), pp. 285–286
Bi1.5Zn1+xNb1.5O7+x (x = 0.005, 0.01, 0.015, 0.02) ceramics were prepared and the structure, crystal chemistry and dielectric properties were investigated. The results revealed that the samples showed a cubic pyrochlore structure when x ≤ 0.015 mol and the second phase occurred at x = 0.02 mol. With the increase of x,…
본 연구에서는 (3-trimethoxysilylpropyl)diethylenetriamine(TPDT)으로 실리카 표면에 N-H기를 도입하여 Michael부가 반응이 가능한 3-(acryloyloxy)-2-hydroxypropylmethacrylate(AHM)과 반응시킴으로써 methacrylate기를 도입하였다. 또한 순수 실리카와 3-methacryloxypropyltrimethoxysilane(MPTMS)만으로 개질된 실리카를 충전제로 사용하여 urethane acrylate계 수지와 광중합법으로 나노복합체를 제조하였다. UV 수지 중합체와 순수 실리카, MP…