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Preparation and Properties of Cage-like Nano ZnO Yu Liang Department of Chemistry and Chemical Engineering ,Xinxiang University, Xinxiang , Henan, China.
The cage wall has porous structure feature, and might has unique photocatalytic property.
So that it is significantly important to control the morphology and structure of zinc oxide.
As can be seen from the enlarged partial image that, this satin-like structure has porous structure character.
At the same time a large number of pore structures formed in the cage wall, and ultimately formed the multilayered nano-zinc oxide of cage-like structure.

The main mechanical structure of the detection equipment was described.
Main Structure of Detection Equipment Detection equipment consists of main frame, lower clamp, upper clamp, leak tester, hydraulic & pneumatic system, electrical control system, etc.
Fig.1 shows the main structure of the equipment.
Fig.1 Main structure of detection equipment According to the contact size of seal element and seal surface, there are two seal types as line seal and face seal.
[8] De Levie, Robert, Curve fitting with least squares, Critical Reviews in Analytical Chemistry, 1(2000), 59-74.

Fluorine Doping Effects on the Electric Property of BiFeO3 Thin Films Fanglong Xu1,2,a, Pengjun Zhao1,2, Jiaqi Zhang1,2 and Xinqian Xiong1,2 1Xinjiang Key Laboratory of Electronic Information Materials and Devices; Xinjiang Technical Institute of Physics & Chemistry of CAS, 40-1 South Beijing Road, Urumqi, China 2University of Chinese Academy of Sciences, Beijing,China axfl8023kf@163.com Keywords: BiFeO3 thin film, F doped, Electric property, Sol-gel Abstract: F doping BiFeO3-xFx (x=0, 0.02, 0.04, 0.06, 0.08) thin films were successfully fabricated on ITO/glass substrates by sol-gel method.
X-ray diffraction analysis indicated that the un-doped BiFeO3 and F doping BiFeO3 thin films presented rhombohedral structure with the space group R3c.
BFO is known to have a rhombohedrally distorted perovskite structure with the space group of R3c.
In this letter, we report on the study of F doping in BFO thin films prepared on indium tin oxide (ITO)/Glass substrate and its effects on crystal structure and electrical properties of BFO thin films.
Fig. 5 J-E curves of the BiFeO3-xFx (x=0, 0.02, 0.04, 0.06, 0.08) thin films Conclusions Series of BiFeO3-xFx thin films with enhanced electrical properties have been synthesized on ITO/glass substrates using a sol-gel method. (1) The obtained BFO thin films are highly crystallized and exhibit a single-phase perovskite structure with the space group R3c. (2) The dielectric constants of BiFeO3-xFx (x=0, 0.02, 0.04, 0.06, 0.08) thin films are approximately 120, 144, 148, 163 and 180 at 10 kHz, respectively. (3) The leakage current densities of BiFeO3-xFx (x=0, 0.02, 0.04, 0.06, 0.08) thin films are 3.0×10-2 A/cm2 , 1.1×10-2 A/cm2, 1.2×10-4 A/cm2, 8.1×10-5 A/cm2 and 6.8×10-5 A/cm2 at the applied electric field of 30 kV/cm, respectively.

Dual Carbon Coating Used In The Preparation Of Lifepo4/C Cathode Material Ying Jianga, Fu-Xin Zhongb, Zhong-Yuan Chengc, Peng-Fei Yud, Yun-Xia Jine, Shun-Hua Xiaof,* College of Chemistry and Bioengineering, Guilin University of Technology, No.12 Jiangan Road, Guilin 541004, China aJiangying163168@126.com, b175143478@qq.com, c352612992@qq.com, d727452036@qq.com, e15977333051@163.com, fxiaoshunhua@glite.edu.cn Keywords: LiFePO4/C cathode material; in situ polymerization restriction; two–step sintering process; dual carbon sources; electrochemical properties Abstract.
In this study, the structure and morphology have been studied systematically by X–ray diffraction (XRD) and scanning electron microscope (SEM).The electrochemical performances have been shown by the charge/discharge capacity, rate property, cycle performance.
John Goodenough et al.[2-5] have researched on its structure, electrochemical properties, synthesis techniques , application range for a long time, and great progress has been made in improving and understanding the physical properties, chemical properties, and synthesis method[6-8].But the drawbacks of LiFePO4 include its relatively low theoretical capacity ,low density, poor electronic conductivity and low ionic diffusivity that limit for its mercial applications.
The samples with different weight ratio can be indexed to an ordered olivine structure and space group Pnmb (PDF file No. 040–1499).
And there is no evidence for the formation of crystalline or amorphous carbons, which indicates that the carbon coating does not influence the crystal structure of the LiFePO4.

The Na2Ti3O7 tubular structure could be kept well even after calcination at 600 °C and began to transform to Na2Ti6O13 nanorods at around 645 °C.
As shown in Fig. 1(a), P25 is composed of rutile and anatase, while no peakes of the as-synthesized product are corresponding to those of anatase or rutile as indicated in Fig. 1(b), which indicates that new crystal structure has been formed after hydrothermal reaction.
The remaining diffraction peaks have been slightly modified suggesting the maintenance of atomic structure in the temperature range between 200 and 500 °C.
At 900 °C, there exists only Na2Ti6O13, from which it can be inferred that the basic structure of the as-synthesized product is Na2Ti3O7 [8-10].
A: Chemistry Vol. 182 (2006), p.121 [5] C.C.

Synthesis and Drug Release from a pH/temperature Sensitive Bead of Poly(N-acryloylglycinate) and alginate Kuilin Deng*1, Ting Gao1, Yubo Gou1, Wei Wang1, Pengfei Zhang2, Shuliang Wang1, Chunyuan Huang1, Huijuan Shen1 1College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China 2Department of Biochemistry, Baoding University, Baoding 071000, China Tel: +86-0312-5971137; Fax: +86-0312-5079525; E-mail: gaoting2004432002@126.com Keywords: pH/temperature sensitive, poly(N-acryloylglycinate), sodium alginate, drug release Abstract: In this paper, a new pH/temperature sensitive beads with core-shelled structure, composed of sodium alginate and poly(N-acryloylglycinate), were prepared using as drug delivery carrier.
After 30 min, the core of the bead swelled to some extent so as to get the un-crosslinked shell structure.
Thereafter, the beads with core-shelled structure were immersed in KPS aqueous solution for 30 min.
The reason about the decreased drug release with increasing polymer content can be ascribed to: The higher the polymer content, the higher density of the hydrogel network structure.

Evaluation and Optimization of The Factors Affectiing Enzymatic Hydrolysis of Silk Fibroin Lei Zhong , Bing Lu and Anping Liaoa College of Chemistry and Eco-engineering of Guangxi University for Nationalities Key Laboratory of Chemical and Biological Transforming Process，University of Guangxi Nanning, 530006, China aCorresponding author, leiwin@163.com Keywords: Evaluation, optimization, enzymatic hydrolysis, silk fibroin.
With the changes of them, the structures of enzyme molecules will also change, which will cause different hydrolysis rates.
It is because of the specific space structure of the peptide bonds in the protease molecules.
The main reason is that the space structure of enzyme will be destroyed when it dissolved in solutions that are either too acid or too alkaline.
It is because the changes of them will also change the structures of enzyme molecules.

The chlorine methyl group was succesfully introduced into the chain structure of polyaniline which was confirmed by electron energy spectrum analysis.
In this paper, the chloromethylation of polyaniline by using paraformalclehyde as chloromethylation reagent was firstly reported, and the chlorine methyl group was succesfully grafted on the chain structure of polyaniline.
Scheme 1 the route of chloromethylation of polyaniline Results and discussion Synthesis In order to confirm whether the chlorine methyl group was grafted on the chain structure of polyaniline or not, the obtained product was characted by electron energy spectrum.
So we can draw a conclusion that the chlorine methyl group was successfully grafted on the chain structure of polyaniline.
[3] J.Huang, S.Viriji, B.H.Weiller, et al.: Chemistry-A European Journal Vol. 10(2004), p. 1314-1319

The Preparation of N-Heptyl Pyridine Tetrafluoroborate Tingting Xu1,a, Chengcheng Zhang1,a,Peng Tian1,a*, Jidong Duan2,b and Qingwen Shen1,a 1College of Chemistry and Life Science, Shenyang Normal University, Shenyang 110034, China 2Laboratory Centre, Shenyang Normal University, Shenyang 110034, China aemail: tianpenglnu@sina.com, bemail: djd2298@sina.com Keywords: HEP-BF4; room temperature ionic liquids; preparation Abstract: The halogenated hydrocarbon and pyridine are used in the synthesis of room temperature ionic liquid intermediates bromided N-heptyl pyridine HEPB, and the nuclear magnetic resonance instrument and the intermediate infrared spectrometer are used in chemical structure characterization, so it is determined that the synthesis is the room temperature ionic intermediates HEPB.
We use infrared spectrometer for the structure characterization, it is proved that we have gotten HEP-BF4 room temperature ionic liquids.
Summary The halogenated hydrocarbon and pyridine are used in the synthesis of room temperature ionic liquid intermediates bromided N-heptyl pyridine HEPB, and the nuclear magnetic resonance instrument and the intermediate infrared spectrometer are used in chemical structure characterization, so it is determined that the synthesis is the room temperature ionic intermediates HEPB.
We use infrared spectrometer for the structure characterization, it is proved that we have gotten HEP-BF4 room temperature ionic liquids.

Therefore, the performances of the synthesized phosphors can be adjusted by the various structure modifying techniques for changing the structure imperfection of the phosphor.
One of the effective methods of designing the structure imperfections in the solids is the electron-beam treatment.
The crystal structure of the samples was analyzed by XRD technique using a Rigaku SmartLab 3 X-ray diffractometer.
Obviously, ZnS hexagonal wurtzite phase gives rise to the green centers of luminescence in the phosphor structure.
Gurvich, Introduction to the physical chemistry of crystal phosphors, Vysshaja shkola, Moscow, 1982, p. 376