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Conclusion The structure of carbon nanotubes has been studied.
N., Carbon nanotubes: structure, properties, applications.
Chemistry, 1989
N., Influence of the structure and chemistry of the surface of carbon nanostructures on the properties of elastomeric compositions based on butadiene-nitrile rubber.
Chemistry and chemical technology. 56 (5) (2013) 77-81.

A JEM-2100 transmission electron microscopy (TEM) was used to study the microscopic structures.
A Bruker AXS D8 X-ray diffraction (XRD) was used to analysis the crystal structure of the samples.
These nanosheets have a crystal structure of anatase as confirmed by XRD pattern shown in Figure 2b.
Gratzel, Solar energy conversion by dye-sensitized photovoltaic cells, Inorganic Chemistry. 44 (2005) 6841–6851
Taurino, Biphase TiO2 Microspheres with Enhanced Photocatalytic Activity, Industrial & Engineering Chemistry Research. 53 (2014) 7931-7938

Therefore, modifying the structure of ZSM-5 zeolite can change the Si/Al ratio and the frame structure, decrease the carbon deposit and increase activity of the catalyst.
N2 adsorption measurement was performed on a QUADRSORB SI material physical structure determinate.
The XRD patterns of the samples are shown in Fig.1.The samples of PZSM-5, TZSM-5 and TZSM-5/AT display the characteristic peaks of MFI structure, which mean that forming method and alkali treatment does not make Zeolite structure changed significantly.
Journal of Natural Gas Chemistry, Vol. 20(3) (2011), P.237 [8] Sami M.T.
Chemistry-Zeolites and Porous Materials, edited by Science press, Beijing, china (2004) , in press.

Because of the unique electron structure of Bi, Bi-based photocatalytic materials have aroused great interest, the structure is benefical for promoting the mobility of photo-generated carriers[8, 9].
The Journal of Physical Chemistry C, 2009, 113(37): 16394-16401
Study of the electronic structure and photocatalytic activity of the BiOCl photocatalyst[J].
Chemistry – A European Journal, 2005, 11(22): 6519-6524
Journal of Photochemistry and Photobiology A: Chemistry, 2010, 215(1): 76-80.

The structure of product was characterized by FTIR, NMR, MS and other spectroscopic methods.
Fig. 1 HPLC chromatogram of product and dehydroabietic acid The structure of the product was identified.
IR, MS, 1H NMR and 13C NMR results indicated the structure of the product is methylthiomethyl dehydroabietate.
The structure was verified by single crystal X-ray diffraction analysis.
The precise structure of the product was characterized as methylthiomethyl dehydroabietate by FTIR, GC/MS, 1H NMR and 13C NMR.

saragow@dataone.in, www.saraxraygroup.net Keywords: Alkali halide, Metal impurity, Electronic structure, MEM, Multipole.
Multipole analysis of the structure has been performed for these two systems, with respect to the expansion/contraction of the ion involved. 1.
Introduction The distribution of electrons in the crystalline system is an interesting and important subject of research in the field of physics, chemistry, material science and Engineering.
When the system is dilute doped, it is possible to study only the average electronic structure.
The refined multipole structure factors were used for the MEM computations of the electron densities.

Moreover, electrical teclmiques are known to be highly sensitive to structure. composition, and nonstoichiometry.
Electrical techniques also have found applications in different areas of materials science. such as solid-state chemistry and physics, lligh-temperature chemistry, high-Tc superconductivity, catalysis and surface science, as well as engineering-related areas. such as metallurgy, ceramics, nuclear engineering, and high-temperature corrosion.

After the modification, the physicochemical properties of lignite char were improved significantly, such as surface area, texture structure and functional groups contents and so on.
The absorbents had fine texture structure and large surface area, which was the prerequisite for good performance absorbents.
High pressure steam could not only get through the blocked pore channels existing in raw char material, but also react with carbon to generate new texture structure and expand the original pores.
On the other hand, some carbon was burnt and the physical structure of char also changed to form new pore structure and surface area5.
The surface chemistry showed an obviously alkalescence property.

We also used power X-ray diffraction and scanning electron microscopy to characterize the structure and morphology of MnO/CNTs composite.
Cheng: Chemistry of Materials, Vol. 22 (2010) No.18,p.5306
He: Journal of Materials Chemistry, Vol. 21 (2011) No.11,p.3571
Abruña: Chemistry of Materials, Vol. 23 (2011) No.13,p.3223
Maier: Physical Chemistry Chemical Physics, Vol. 5 (2003) No.23,p.5215

Properties and Synthesis of Kaolin / Potassium polyacrylate / Acrylamide Composite Superabsorbent Resin Hao REN1, 2, a, Jie LI3, b, Yufen ZHANG1, 2, c and Taizhong HUANG1, 2, d 1School of Chemistry & Chemical Engineering, University of Jinan, Shandong, China 250022 2Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, China 250022 3Shandong Haitian Biochemical Co., Ltd., China 261313 achm_renh@ujn.cn, blijiew2008@163.com, cchm_zhangyf1@ujn.cn, dchm_huangtz@ujn.cn Keywords: Kaolin; synthesis; composite superabsorbent resin (CSR); water absorbency Abstract: The aqueous solution polymerization methods were used for the synthesis of superabsorbent resin.
Introduction The aqueous solution polymerization is a simple process and it is easy to operate with the advocacy of current green chemistry concept.
An effective cross-linked structure will not formed, so water absorbency will be decreased.
The longer the chain is, the greater the network structure obtains.
Yuan, et al: Journal of Applied Polymer Science, Vol.102 (2006), p. 2875 [3] Yian Zheng, Ping Li, Junping Zhang: European Polymer Journal, Vol.43 (2007), p. 1691 [4] Jianghua Liu, Qin Wang, Aiqin Wang: Carbohydrate Polymers, Vol.70 (2007), p. 166 [5] Hongke Tang, Qi Chen: Chinese Journal of Synthetic Chemistry Vol.15 (2007), p. 643 [6] Fushan Chen, Qian Gong: Leather and Chemicals Vol.24 (2007), p. 38 (In Chinese) [7] Huaiyu Wen: Jiangnan University Master Thesis (2006) (In Chinese)