Materials Literature
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Ultrathin MoS2nanosheets were prepared in high yield using a facile and effective hydrothermal intercalation and exfoliation route. The products were characterized in detail using X-ray diffraction, scanning electron microscopy, transmission electron microscopy and Raman spectroscopy. The results show that the high yi…
Acetamide(C2), propionamide(C3), butyramide(C4), isobutyramide(i-C4), isovaleramide(i-C5) and trimethylacetamide(t-C5) groups each were introduced to the terminals of hyperbranched polyethylenimine(HPEI) through the amidation reaction between HPEI and the corresponding anhydride. Moreover, HPEIs terminated with two ki…
3 N 准备在下面的 4 /diamond nanocomposites 超离频压力和高温度( HPHT )，基于绞链类型使用多铁砧仪器立方的出版社。所有这些 superhard 阶段的体积材料成功地被综合了并且系统地被测试。我们强调那个 ultra-HPHT 方法在科学研究和 superhard 材料的工业生产起一个重要作用。它为为 sintering 象方法一样形成新奇 superhard 阶段的轻元素提供驱动力高密度的 nanosuperhard 材料。
The effects of the calcination temperature on the oxygen content and magnetic properties of the nanocrystalline perovskite manganite La0.75Sr0.25MnO3±dprepared by the sol–gel method were investigated. The highest temperatures at which the samples were calcined were 973,1073, 1273, and 1473 K. The X-ray diffraction(XRD…
Electroless Ni- P coatings on steel substrate were post- treated with γ- aminopropyltriethoxy silane(3-APTS), stearic acid and compound of the both respectively, and then for the posttreated coatings, the contact angle with pure water was measured and the corrosion performance was evaluated by means of nitric acid spo…
在他们被减少前后，流动 MgO 的小团的压缩力量被调查。绿小团，产品小团，和减少的小团的孔和毛孔尺寸被分析澄清 MgO 怎么影响小团的力量。试验性的结果看那在小团的忍受 MgO 流动内容什么时候在减小增加以后从 0.0wt% 增加到 2.0wt% ，在周围的温度减少的小团的压缩力量，而是小团的压缩力量。因此，在减小以后的小团的压缩力量不在减小前与那展出某些积极关联。所有小团的孔和毛孔尺寸(与不同 MgO 内容) 当小团被减少时，增加。然而，流动 MgO 的小团的孔的增加比传统的 non-MgO-fluxed 小团的相对小，并且流动 MgO 的小团的毛孔尺寸范围相对更狭窄。减小胀大的索引(RSI ) 是为管理减少的小团的压缩力量的一…
Failure of rock under impact loadings involves complex micro-fracturing and progressive damage. Strength increase and splitting failure have been observed during dynamic tests of rock materials. However, the failure mechanism still remains unclear. In this work, based on laboratory tests, numerical simulations with th…
Novel supermacropore cryogel beads were prepared by combining the inverse-suspension and cryo-polymerization methods under frozen condition.The mean diameter of the beads was 234.1 μm,and the pore size was 10—50 μm.The cation-exchange cryogel beads were prepared by in-situ grafting of 2-acrylamido-2- methyl-1-propanes…
进有由一个阶段转移方法的不同形态学的 nanostructures 自我装配的 meso-Tetrakis (4-aminophenyl ) 卟啉(TAPP ) 罐头。卟啉 nanoaggregates 的形态学(nanospheres， nanorods 和 nanothorns ) 能就被在房间温度在合适的溶剂改变卟啉的集中容易调节。揭示的 HRTEM 图象 TAPP 的高度订的超分子的数组的形成，即，在 nanoaggregates 的 TAPP 分子的超点阵，它与 TAPP 的一个分子的尺寸同意了很好。UVvis 吸收系列显示出 TAPP 的 Soret 乐队的明显的红移动，显示在 nanoaggregates 的 TAP…
Graphene oxide functionalized with gama- aminopropyltriethoxysilane, is used as support for the immobilization of homogeneous heteropoly phosphotung- stic acid. It is synthesized and characterized by SEM, XPS, XRD, 31 P NMR and Raman. The effects of catalyst parameters and reaction conditions on the oxidation reac- ti…
This discussion presents a hierarchical multiscale framework that furnishes a two-level statement of the prob- lem and facilitates simultaneous resolution of quasi-continuum and atomistic length scales in a unifi ed manner. Interatomic interactions are incorporated in the method through a set of analytical equations t…
As potential thermal barrier coating（TBC）materials,Ruddlesden—Popper structured BaLn2Ti3O10（Ln=rare earth）compounds possess excellent phase stability and desirable thermo-physical properties as well as interesting anisotropic structure.In this paper,the effects of pressure during BaLa2Ti3010（BLT）bulk preparation on th…
From the point of view of the application, the service life of component usually relies on the wear resistance of local region, and it is desirable that the local region of component rather than the whole component is reinforced by ceramic particulate to offer high- wear resistance. In this study, the TiC- TiB2particu…
Porous Sr-doped lanthanum manganite-yttria stabilized zirconia (LSM-YSZ) oxygen electrode is prepared by an infiltration process for a reversible solid oxide fuel cell (RSOFC). X-ray diffraction and SEM analysis display that perovskite phase LSM submicro particles are evenly distributed in the porous YSZ matrix. Polar…
In the framework of the isospin-dependent quantum molecular dynamics transport model(QMD), the effects of symmetry potential on the collision number and the neutron-proton bremsstrahlung photon in the reactions of40Ca+40Ca,124Sn+124Sn,40Ca+64Zn,40Ca+124Sn at different incident beam energies are studied. It is found th…
这研究从西藏的 Gerze 盆收集了早渐新世到中间的中新世的沉积，并且使用了 X 光检查衍射(XRD ) 和扫描电子显微镜(SEM ) 讨论他们的泥土 mineralolgy，泥土索引，更好理解泥土矿物学和它的 paleoclimatic 意义。结果证明 Gerze 盆沉积的泥土矿物质主要由 illite 和绿泥石组成，并且他们的相对内容沿着节变化，与绿土和 kaolinite 的次要的数量。相对内容和泥土索引的变化建议 Gerze 盆经历了古气候的三阶段的进化：我) 高 illite 和绿泥石内容，与变动绿土并且低(I+Ch )/(K+S ) 比率，到迟了的渐新世的从早渐新世的主导的季节的干旱气候的陈述语气；II ) 更高的 i…
Float-zone (FZ) monocrystalline silicon is an excellent material to achieve high energy conversion efficiencies () as the bulk lifetime is typically only limited by intrinsic Auger recombination. Multicrystalline silicon (mc-Si), on the other hand, is predominantly limited by crystal defects and impurities. In this wo…
ZnO powder was obtained by conventional precipitation method using ammonium oxalate and zinc acetate as raw materials.The effects of calcination temperature on the crystallization and fluorescent properties of the product were investigated.The powders were characterized and analyzed by TGA-DTA,XRD,UV-Vis,FS and SEM,re…
Cardiotoxicity as a result of cancer treatment is a novel and serious public health issue that has a significant impact on a cancer patient’s management and outcome.The coexistence of cancer and cardiac disease in the same patient is more common because of aging population and improvements in the efficacy of antitumor…
Lithium-ion batteries and sodium-ion batteries are critically important for the storage of renewable energies. However, they often suffer from the electrochemically induced mechanical degradation in high-capacity electrodes, resulting in capacity fade and short cycle life. We have developed a unique nanobattery cell i…