Materials Literature
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A fluorescent probe LZ-N with naphthalimide as fluorophore and N-butylbenzene-1,2-diamine as a new recognition moiety for copper ion was designed and syn- thesized. The probe LZ-N exhibits high selectivity for Cu 2? ion in aqueous media (CH3CN:H2O = 1:1) over all the other metal ions in our study, more than 20-fold fl…
In this paper, high performance and large single domain GdBCO bulk superconductors have been successfully fabricated by the top-seeded-melt-texture-infiltration-growth process(TSMT-IG). The effect of the growth morphology, growth interface, the magnetic levitation force and trapped flux of single domain GdBCO bulk sup…
一篇小说合成， CdSe-graphene，用灵巧的热水的方法被综合。综合 composites 的结构的特征研究被 X 光检查衍射(XRD ) 调查，扫描电子显微镜(SEM ) ，传播电子显微镜(TEM ) ， Brunauer， Emmett，出纳特定的表面区域(赌注) 和 X 光检查光电子光谱学(XPS ) 。photocatalytic 活动被甲又蓝色的降级作为标准染料调查。MB 的降级关于常规时间间隔在染料的集中基于减少被计算。可重用性测试被做调查使用的催化剂的稳定性。另外， CdSe-graphene 的抗菌剂活动也用细菌链球菌 aureus 被调查(S。aureus ) 。
The understanding of electrical breakdown in atmospheric air across micrometer gaps is critically important for the insulation design of micro nano electronic devices.In this paper,planar aluminum electrodes with gaps ranging from 2 μm to 40 μm were fabricated by microelectromechanical system technology.The influence…
宽 bandgap (3.37 eV ) 和 ZnO (60 兆电子伏) 的高激子绑定精力为紫外轻射出的二极管(LEDs ) 和低阀值的放射激光二极管(LD ) 使它成为一个有希望的候选人。然而，在生产稳定、可再现的高质量的 p 类型 ZnO 的困难妨碍了 ZnO pn homojunction LEDs 的发展。为完成 ZnO electroluminescence 的其他的策略是由采用另外的可得到的 p 类型材料制作异质接面设备(例如 p 轧) 或造新设备结构。在这篇文章，我们将简短基于 pn heterostructures 和 metalinsulator 半导体 heterostructures 在 ZnO LEDs/L…
In order to avoid traditional ring parts hot rolling process problems of many times heating and so on, the as-cast 42CrMo alloy ring short process flow blank-casting and rolling compound forming process is taken as the research object, a series of experiments are performed on the Gleeble-1500D machine and metallograph…
Two 3d-4/heterometallic one-dimensional chains with neutral 4,4’-bipyridine ligands as linkers and[Cu2Ln2]clusters（Ln = Gd for 1,Dy for 2） as nodes have been hydrothermally synthesized and structurally characterized.Magnetic studies indicate that complex 1 exhibits a relatively large magnetocaloric effect,with an entr…
Superhard substances are those a hardness above 20 GPa, i.e. higher than that of corundum (Kislii et al.,1988) or with a Vickers hardness Hv exceeding 40 GPa (SologenkoG (Fitzer, 1973). The growing interest in borides comes from their high-temperature behavior: high melting point, hardness, wear resistance and chemica…
The micro-scaled Ag2O paste is cheaper than Ag nanoparticle paste and has a promising application prospect in high temperature electronic packaging industry.In order to further reduce the cost and improve the joint ability of the resistance to electrochemical migration(ECM),the Ag-coated Cu particles were added into t…
在这份报纸，我们报导为有核心壳的二金属的 Au@Pd nanoparticles 的合成的热减少方法在 graphene 表面上组织的一出简单一步舞。Au@Pd–G composites 的这种新类型被传播电子显微镜学，高决定传播电子显微镜学， X 光检查光电子光谱学和 X 光检查衍射描绘。有 11nm 的一条平均直径的 Au@Pd nanoparticles 很好在 graphene 表面，和 Au 核心数量以及 Pd 壳厚度上被驱散，这被发现份量上能被装载金属性的先锋，和深奥核心壳的不同数量控制结构形成机制也被讨论。第三的 Pt/Au@Pd–G composites 能也是由做的随后的磅的 synthetized。向在酸的媒介…
The magnetic carbon@Fe3O4 nanoparticles have been fabricated by a simple one-step hydrothermal method and applied as adsorbents for removal of organic dyes such as Congo red from aqueous solution. The pre- pared products were characterized by transmission electron microscopy, X-ray diffraction, Fourier transform infra…
0.19wt%) 能容易与铁酸盐在协作使变形。在机械性质和 stretch-flangeability 之间的关系显示有大制服以后的延伸的钢由于铁酸盐和马氏体阶段的更近塑料的不兼容有好 stretch-flangeability，它能有效地推迟 microvoids 的生产和 decohesion。
The silicon nanowire were prepared by magnesiothermic reduction method using silicon oxide nanowire oxidant and templates,Mg powder as reductant. The samples were characterized by the thermal analysis,X-ray diffraction,scanning electron microscope( SEM) and transmission electron microscopy( TEM). The results show that…
Thermal degradation of hydroxypropyl tri- methyl ammonium chloride chitosan-Cd complexes (HTCC-Cd) was investigated by thermogravimetric ana- lysis. The results indicate that the degradation of HTCC-Cd in nitrogen atmosphere was two-step reaction. For the first step of degradation, the initial temperature of mass loss…
Plasma nitriding was used to improve the corrosion performance of anchor steel. The microstructure, phase constitution, microhardness and corrosion resistance of the nitrided layer were systematically studied. The results show that the nitrided layer is continuous and dense, and consists of Fe 4 N and Fe 3 N in the ou…
The raw sodium feldspar (RSF) is activated with the concentrated sulfuric acid solution and the acid activated sodium feldspar (AASF) is obtained. The results obtained from the mercury intrusion method show that the acidification can increase the porosity and the specific surface area. The effects of the initial pH, c…
Microstructure and texture of the as-drawn and the as annealed pearlitic steel wires were characterized by using SEM( scanning electron microscopy) and EBSD( electron backscatter diffraction)to reveal the effect of austenitizing process on the texture redistribution of the cold drawn pearlitic steel wire. The results…
We synthesized hierarchical Polystyrene/Polyaniline@Au(PS/PANI@Au) catalysts through a seeded swelling polymerization and in-situ reduction procedure. PS/PANI@Au catalysts possess a core of PS as seed and template, a PANI shell with fibers and uniform gold nanoparticles on the surface. The configuration changes of the…
The intergranular corrosion resistance of 316L stainless steel solution annealed at 1100 ℃ for 0.25~2 h was tested in 10% HF+10% H2O2solution. The microstructure evolution of the steel due to annealing treatment and the corrosion morphology of the steels after corrosion test were examined by optical microscopy. The ha…
Microporous aluminosilicates ZSM-5,ordered mesostructured materials MCM-41,SBA-15,MAS-5 were synthesized in hydrothermal system. Then,these nanoparticles were electrostatically modified with linear cationic polymer agent. The as-synthesized samples were characterized by X-ray diffraction(XRD),scanning electron microsc…