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Defining Structure in Electrospun Polymer Fibres G.
We use a combination of microscopy, x-ray scattering and neutron scattering to show how structure develops in micro and nano-size polymer fibres prepared by electrospinning.
The potential for forming fibres on this scale has clear implications in terms of the development of structures on the nano-scale or "nanotechnology".
In this presentation we explore the development of structure and morphology of different types of polymer systems.
Particularly in the thicker fibres without DBS a mottling is observed, indicative of spherulitic structure.

The structure and morphology of the cathode materials are characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermogravimetric (TG) analysis.
The excellent cycling stability may be attributed to the uniform spherical structure of the sample.
The excellent cycling stability mainly contributed to uniform spherical structure.
Duan: Journal of Electroanalytical Chemistry,Vol. 660 (2011) No.1, p.14
Wang: Chinese Journal of Inorganic Chemistry, Vol. 23 (2007) No.7, p.1165.

Fabrication and luminescence properties of CaMoO4:Eu3+ red phosphors for white LED Zhen-hua Liang1, Yu-zhi Feng1, Xiao-xia Liu2 and Gui-hua Peng1,a 1Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), School of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin 541004, China 2College of Arts & Science, Jianghan University, Wuhan 430056, China apengguihua@mail.sic.ac.cn Keywords: CaMoO4; Red phosphor; Co-precipitation; Luminescence property Abstract.
However, to the best of our knowledge, there were no reports about effect of H3BO3 additive on crystal structure and luminescence properties of CaMoO4:Eu3+ prepared by co-precipitation.
Moreover, the sublattice structure was distorted after substitution of Mo6+ by B3+ for the radius of B3+ is smaller than that of Mo6+, which probably decreases the M–L bond length, and thus the Mo–O bond covalency may be increased[10].
There are two possible reason of this improvement: 1. the emission at 615nm is assigned to the Eu3+ electric dipole transition, which is sensitive to the site symmetry, and the level of matrix crystal structure distortion increased and the symmetry was decreased after replacing Mo6+ by B3+, then the 5D0 → 7F2 dipole transition were significantly improved[2,10]; 2.

Continuous preparation of low-molecular-weight chitosan by the combination of ozone treatment and membrane separation Chao Wei1,a, Jintian Liang2,b, Wu Yue3,c, Pingjia Yao2,d 1.College of Chemistry & Chemical Engineering, Jiangxi Science & Technology Normal University, Nanchang,Jiangxi 330013, China 2.College of Life Science & Technology, Guangxi University, Nanning, Guangxi 530005, China 3.
Department of Chemistry and Chemical Engineering, Binzhou University, Binzhou,Shandong, 256600, China aweichao771231@163.com b8225859@163.com cyuewugxu@163.com dpjyaogxu@126.com Key words: ozone, degradation of chitosan, low-molecular-weight chitosan(LMWC), UF membrane Abstract.
However, these functions have been shown to be dependent not only upon the chemical structure of chitosan but also its molecular size.
The results may give us the important information that the chemical monomeric structure of LMWCs fractionated was not changed to any noticeable extent, compared with the initial chitosan.
IR spectra as well as 13C NMR spectra demonstrated that the chemical structures of LMWC were not modified during the degradation and fractionation process.

Designing of in-situ FTIR cell and its application Mingjian Luo1, a, Bing Hu1,b and Xinyue Liu1,c 1 Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Daqing 163318, P.R.
The structure of FTIR cell is illustrated in Fig. 1.
And the isolated silanol (or free silanol), where the surface silicon atom has only one bond attached to single OH group and three other bonds into the bulk structure.
Fig. 1 Structure of in-situ FTIR cell. 1.
Nakashima, Physics and Chemistry of Minerals 37 (2010) 91-101

As for the tabular-shaped α-Al2O3, with its two-dimensional plate structure, favorable adhesive force, and remarkable shielding effect, it has been widely employed in the producing pigment, paining, phosphor powder materials, and cosmetics.
Because of the mild and easy control condition, the hydrothermal reaction is a common synthesizing method in soft chemistry.
Within the hydrothermal reaction system of soft chemistry, to synthesize α-Al2O3 in different shapes by controlling different conditions not only explores the mechanism and theory of the morphology of growth, but also has a significant meaning to the theoretical research of the crystal’s growth.
Then calcine the precursor at the temperature of 1200℃ for 2 hours to get the α- A12O3 sample. 1.2 Sample Characterization Conduct characterization of the crystalline structure and morphology of the sample products produced by the hydrothermal method.
The crystalline structure is tested and examined by the D/Max2550VB+/PC XRD.

Introduction Having atomically thick, high surface-to-volume ratios, two-dimensional (2-D) sheet composed of sp2 carbon atoms arranged in a honeycomb structure [1], graphene is viewed as the building block of all other graphitic carbon allotropes of different dimensionality, such as graphite, CNTs and fullerene [2].
Graphene nanoplatelets were obtained from Coal Chemistry, Chinese Academy of Sciences.
Fig.1 (a) shows the flake-like morphology of graphene, and nanofibers meshed structure of graphene-PANI composite film was observed in Fig.1 (b).
The experimental results showed that the sensor based on the composite film shows better response properties compared with single graphene film, which may be induced by the mesh structure with larger specific surface area of composite thin film and p-n junction formed between graphene and PANI.
[8] Al-Mashat L, Shin K, Kalantar-Zadeh K, Graphene/polyaniline nanocomposite for hydrogen sensing, The Journal of Physical Chemistry C. 114 (2010) 16168-16173

Characterization The crystal structure and morphologies of Electrodes were observed with XRD (Japan, XRD-6000) and SEM (PHILIPSirion-200).
Results and Discussion The crystalline structure of prepared TiO2 thin film sample is shown in Fig.1.
Compared with the standard pattern, all characteristic peaks of sample are consistent with anatase TiO2 structure totally.
Journal of Industrial and Engineering Chemistry Vol. 18(2012), p. 19-23
Journal of Photochemistry and Photobiology A: Chemistry Vol. 170(2005), p. 273-278

Nafion has an excellent ion-exchange property and cationic enrichment ability of rejecting the negatively charged substance and at the same time incorporating positively charged ions, due to the electrostatic interaction and the presence of anionic sites in its structure [7].
Graphene had excellent performance comes from the unique structure and electronic properties, such as two-dimensional structure, high specific surface area, porous interface layer and good conductivity, which endow graphene with the ability as a inductance matrix to help biological molecules easily through the conduction of porous channel infiltrate to the electrode.
Disodium hydrogen phosphate (from Shanghai aibi chemistry preparation Co., Ltd.), hydrochloric acid (Zibo chemical reagent factory).
Acknowledgements This work was financially supported by National Natural Science Foundation of China (authorized number: 20975056, 21275082 and 81102411), Natural Science Foundation of Shandong (ZR2011BZ004, ZR2011BQ005), JSPS and NSFC under the Japan-China Scientific Cooperation Program (21111140014), State Key Laboratory of Analytical Chemistry for Life Science (SKLACLS1110) and the National Key Basic Research Development Program of China (973 special preliminary study plan, Grant no.: 2012CB722705).

Generally, CNTs contain single walled or multiple walled structures, and as known as the single walled carbon nanotubes (SWCNTs) and Multi-Walled carbon nanotubes (MWCNTs).
The MWCNTs have more complex and difficult structure compared with SWCNTs.
Due to the unique structures, good electrical and mechanical of CNTs, it can be used in many applications such as semiconductor, tunnel scanning, molecule absorbent, chemistry, and materials science [8, 9].
McNally: Australian journal of chemistry, Vol. 62 (2009), p. 762-785 [8] R.