Materials Literature
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Graphene patchwork: A simple synthetic process requiring neither catalyst nor solvent was used to convert glucose directly into polycrystalline carbon sheets having a “patched” multidomain graphene structure with domains 2–15 nm in size. The carbon assemblies exhibit high conductivity, high specific surface area, and…
Beyond hydrogen storage: The first example of reversible magnesium deposition/stripping onto/from an inorganic salt was seen for a magnesium borohydride electrolyte. High coulombic efficiency of up to 94 % was achieved in dimethoxyethane solvent. This Mg(BH(4))(2) electrolyte was utilized in a rechargeable magnesium b…
How do you like your eggs? Amphiphilic carbon dots (CDs) with intense blue fluorescence have been produced from chicken eggs by treatment with plasma. They are used as effective “fluorescent carbon inks” for multicolor luminescent inkjet and silk-screen printing (see image).
利用水热法制备了性能稳定的红色荧光粉LaPO4:Eu3+，同时研究了不同的Eu3+浓度、煅烧温度对荧光粉发光性能的影响.通过X射线粉末衍射(XRD)和扫描电子显微镜(SEM)来表征荧光粉的晶体结构和颗粒大小及形貌; 用激发光谱和发射光谱以及荧光衰减曲线来表征荧光粉的荧光性能.结果表明：未煅烧时前躯体主要是六方晶相LaPO4·0.5H2O，煅烧温度在900 ℃时，所制备样品为单斜相LaPO4:Eu3+; SEM图像显示5 at.% Eu3+掺杂LaPO4呈椭球形，颗粒长约为500 nm，宽约为300 nm.最大发射波长和激发波长分别为592 nm和393 nm，发射光谱中592 nm和612 nm的发射峰对应的是Eu3+离子的5D0…
My thesis is prepared upon two separate yet interdisciplinary projects. First, I present a project entitled 'Polymer Nanocomposites: Polymer and Particle Dynamics' where I investigate dynamics of polymer and particle upon their mixing. On second part of the thesis, I present one of the application of polymer nanocompo…
INCONEL 718合金（IN718）自从20世纪60年代初在美国的INCO Huntington Alloys（现为Special Metals Co.）被发明并应用于涡轮零部件制造后,已成为航空发动机历史上应用最为广泛的镍基高温合金材料。现代飞机发动机上超过30%（质量分数）的关键零部件由718合金制成。本文回顾了718合金在航空发动机上的应用历史,对该合金的基本力学性能、高温稳定性,以及目前国外应用的铸、锻制造工艺现状做了综述。对国外正在研究的新型IN718衍生替代合金的发展现状进行了介绍。
Polyolefins comprise the majority of the world's plastics consumption. Polyethylene and polypropylene are the two most widely utilized materials due to their exceptional properties and their inexpensive monomer feedstock. However, the polymers' true success derives from the heterogeneous catalysts that produce them. T…
Рассматриваются недостатки современной теории воздушно -реактивных двигателей, связанные с ошибочной теоремой о подъемной силе продуваемого профиля, выведенной профессором Н.Е.Жуковским в 1912г.
The synthesis of a family of para-substituted pyridine di(imine) ligands, and their corresponding iron dihalide, dicarbonyl and dinitrogen complexes are described. The influence of the substituents on the electronic structure of each derivative was investigated using a combination of X-ray diffraction, cyclic voltamme…
Lead by the theory of Transformation Optics and developments in metamaterials, the field of complex structures is growing in importance in the scientific community.In optics, those concepts add design flexibility to graded-index devices, but fabrication of high refractive index contrasts at the nanometer scale is stil…
The dielectric behavior of poly(vinyl alcohol) –PVA– crosslinked hydrogels obtained by the repeated freezing/thawing (F/T) technique have been investigated by dielectric relaxation spectroscopy (DRS) and differential scanningcalorimetry (DSC). The crosslinked polymer is produced by the clustering of chains caused by t…
The dielectric behavior of poly(vinyl alcohol) –PVA– crosslinked hydrogels obtained by the repeated freezing/thawing (F/T) technique have been investigated by dielectric relaxation spectroscopy (DRS) and differential scanningcalorimetry (DSC). The crosslinked polymer is produced by the clustering of chains caused by t…
O principal objetivo deste estudo foi conduzir uma investigação na performance da argila organofílica Brasgel como adsorvente no processo de remoção de metais pesados (zinco, chumbo e zinco/chumbo). Este trabalho foi realizado em 2 etapas; a primeira etapa consistiu em preparar a argila Brasgel organofílica, partindo-…
The clay mineral vermiculite was modified by intercalation of ethylenediamine (en) in acidic medium based on a 24 factorial design, the selected variables were: temperature of the intercalation reaction, concentration of en+, time under stirring and acid leaching of the vermiculite. Sixteen different experimental cond…
In this work CdMoO 4 nanoparticles were obtained under hydrothermal conditions using microwave radiation (2.45 GHz) (MH) at 100°C for different times. These powders were analyzed by X-ray diffraction (XRD), Field-emisson gum scanning electron microscopy (FEG-SEM), Ultraviolet-visible (UV-vis) absorption spectroscopy a…
There are many exotic properties of the charmonium and charmoniumlike states above $D\bar{D}$ threshold. The recent experimental results from BaBar and Belle on the new and conventional charmonium states are reviewed in this talk.
We have generated a number of compound data sets and programs for different types of applications in pharmaceutical research. These data sets and programs were originally designed for our research projects and are made publicly available. Without consulting original literature sources, it is difficult to understand sp…
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