Search results

The crystal structure and morphology evolution of composites were characterized by XRD and SEM.
Conductive polymer/inorganic mineral composites have both excellent electrical conductivity of conducting polymers and physical chemistry properties of inorganic mineral [5–7].
Herein, we reported the crystal structure, morphology evolution and anti-corrosion properties of Pani/py/TiO2 composites in the experiment.
It can be seen that Pani/py copolymer does not affect the TiO2 crystal structure.
Morphology examinations reveal that Pani/py/TiO2 all present ball structure.

Novel Ordered Layered double hydroxides Ultra thin Films Functionalized with Dawson-type Polyoxometalates: Synthesis, Characterization and Photocatalytic Behavior Under Visible Light Jinping WANG1,a and Danfeng LI1,b* 1Department of Chemistry, School of Science, Tianjin University, Tianjin, China awangjp0803@163.com, blidf@tju.edu.cn *Corresponding author.
The structural integrity of the UTFs were characterized by ICP-AES, XRD, IR, UV/DRS, indicating that the Dawson structures remained intact in the hybrid compositions.
These robust Dawson-type POMs with big sizes and high charge are easily synthesized, and their structures are well defined [4].
The characteristic IR absorption data in the region from ca. 1100 to 700 cm-1, respectively, are very useful fingerprints to identify the structure of POMs.
Xu, Introduction of the Polyoxometalate Chemistry, Chemical Industry Press, 1st ed.

Facile Synthesis of Benzyl alcohol Type Hypercrosslinked Resin Qiu Jin1,2,a Puhui Xie2,b Linxiu Zhao1,c Lingling Bai1,d Siguo Yuan1,e 1 School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China 2 Department of Chemistry, College of science, Henan Agricultural University, Zhengzhou 450002, China aemail: jinqiu12345@sina.com, bemail: pxie2007@yahoo.com.cn, cemail: 55266220@qq.com, demail: 332072043@qq.com, eemail: yuansiguo2005@yahoo.com.cn Keywords:hypercrosslinked resin, benzyl alcohol, Friedel-Crafts alkylation polymerization.
The structure and micromorphology of the resin was characterized with BET, IR and elemental analysis.
The results indicated that the novel polar adsorption resin possess high specific surface area (525.00m2/g) and abundant micropore structure (average pore diameter: 1.123nm), and could be anticipated having a potential application in the fields of solid phase synthesis, separation and adsorption.
In this paper, a kind of benzyl alcohol type hypercrosslinked resin was facilely prepared via chloromethylation of benzyl alcohol monomer and succedent Friedel- Crafts alkylation polymerization, and the physicochemical structure and micromorphology of the novel functional resin were preliminarily characterized with BET, IR and elemental analysis.

Effect of various CF4/CH4 flow ratios on structure and optical band gap of fluorinated diamond-like carbon thin films Jian Rong Xiao1,2,a, Tao Tang1, Yan Wei Li2, 3 and Xin Hai Li2 1College of Science, Guilin University of Technology, Guilin 541004, China 2School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China 3College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China acsu_xiaojianrong@yahoo.com.cn Key words: F-DLC thin films; Gas flow ratios; Microstructure; Optical band gap.
The surface morphology of the F-DLC thin films deposited at lower gas flow ratios is a compact and uniform structure, and it became rough with the increase of gas flow ratios.
It is obvious that the chemical bonding structures were strongly influenced by gas flow ratios.
It is known that the optical band gap of the F-DLC thin films depends on the fluorine content and chemical bonding structure [11].
The surface morphology of the thin films reveals a compact and uniform structure at different gas flow ratios.

Model And Calculation Method The silicon carbide-derived structure(i.e.
Moreover, the band structures for 3C-SiC(111) and SiCDS surface structures have also been investigated in our work and the results are shown in Fig. 3.
Obviously, the Si removal results in significant change in the band structures for 3C-SiC(111) surface structure.
Summary In this paper, we employed first principles method to study the surface structures and electronic properties for silicon carbide-derived structure (i.e.
Journal of Solid State Chemistry 182 (2009) 1733–1741

Crystal Structure of the Compounds DyGa3-xGex (x = 0.08-0.48 and x = 0.68-0.80) Taras Delenko1,a, Andriy Horyn1,b, Yaroslav Tokaychuk1,c, and Roman Gladyshevskii1,d 1Department of Inorganic Chemistry, Ivan Franko National University of Lviv, Kyryla i Mefodiya St. 6, 79005 Lviv, Ukraine atarasdelenko@gmail.com, bandriy.horyn@lnu.edu.ua, ctokaychuk@mail.lviv.ua, droman.gladyshevskii@lnu.edu.ua Keywords: dysprosium, gallium, germanium, X-ray powder diffraction, crystal structure, electrical properties Abstract.
Both structures belong to the family of close-packed structures of general composition AB3, and can be decomposed into monatomic layers with triangular mesh.
Mokra, Crystal structure of DyGa2.81Si0.19, Coll.
Crystal structure of Er4(Ge,Ga)7, a new hexagonal AlB2 derivative, J.
Buschow, Crystal structure of the compound DyGe3, J.

With a hydrothermal temperature of 120 °C, the film became more complete and structured.
When the hydrothermal temperature was increased to 120 °C, the film grew more complete and structured.
Fig.3 shows the 3D structure simulation diagram of the surface of the SnO2 film synthesized under different hydrothermal temperatures.
Through simulation analysis of the 3D structure of the thin-film material surface, the larger the number of peaks, the larger the specific surface area of the thin film.
When the hydrothermal temperature was increased to 120 °C, the film grew more complete and structured.

This paper introduces the structure and functional theory of the finishing prototype, i.e. the overall design frame of the control system, the framework level design method of the control system and the development method of the control system.
In order to manufacture a prototype with high precision, high stiffness and high dynamic response, we solved a lot of technological problems, such as the structure of the buffing wheel, the magnetic field equipment, the circulatory system and the control strategy optimization.
This paper introduces the structure and function theory of the control system in detail. 2 General framework design of the control system The control system consists five modules, as shown in Fig. 1.
Fig. 1 The structure of the control system 3 Design for the framework level of the control system This control system is developed based on the Visual C ++ 6.0 platform.
Journal of Industrial and Engineering Chemistry, 2013,19(2):394-406.

The Difference between Rare Earth Ions and Alkaline Earth Metal Ions in DNA Condensation Process Jun Zhang1,a, Xiaoting Shi1,b, Wei Guo2,c, Zhong Zhang3,d and Hong Yang3,e 1School of Chemistry and Chemical Engineering, Inner Mongolia University,Hohhot,010021,China 2College of Environmental and Resource Sciences, Inner Mongolia University,Hohhot,010021,China 3Neurosurgery, Medical Oncology, Inner Mongolian People’s Hospital,Hohhot,010017,China a zhangjundoc@sina.com, b sxtwhr3187@163.com, c guowei-1976-z@hotmail.com, d zhangzhongnmg@sina.com, e yanghongnmg@sina.com.cn Keywords: CeCl3, Atomic force microscopy, DNA.
By atomic force microscopy, different types of condensed DNA structures were observed at the presence of Ce3+ or Mg2+ ions.
Atomic force microscopy (AFM) is a valuable addition to these techniques, AFM has been successfully used for studying the DNA molecules condensation[5-7], however, AFM studies of DNA structures in the presence of Ce3+ were not reported.
This work was the first time to show DNA structures changed by the Ce3+.
After CeCl3 solution mixed, at CeCl3/DNA molar ratios= 2.0×107, the DNA structure formed thick flat (figure 2a).

(1) Internal factors: concrete structures to resist the ability of the environment, the structure form of shape and structure design, selection of varieties of cement and aggregate, admixture, varieties, reinforced protective layer thickness and the diameter of the size, the water cement ratio of concrete, pouring and curing a variety of factors such as the construction technology of the decision
Corrosion Types and Corrosion Mechanism of Concrete So-called corrosion, it is between the material and the environment caused by physical chemistry material itself of the nature of change.
In a corrosion system, decide on the material behavior is the chemical composition, structure and surface state.
In under the premise of workability, should reduce the number of the slurry, at the same time should improve the composition of the slurry, make it has good structure viscosity, make concrete mixture evenly, improve the structure of hardened concrete.
Structure, performance and material of concrete [M].