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Strong acids are usually used as oxidants in the modification process[9, 10], which can easily make an impact on structure and properties of the materials.
Carbon aerogels: Analysis of pore structure.
Erkey: Industrial & engineering chemistry research Vol. 42 (2003), p.6933-6937 [12] Halama, A., B.
Pasciak: Electrochimica Acta Vol. 55 (2010), p.7501-7505 [13] Wang, G.X., et al.: Journal of power Sources Vol. 146 (2005), p. 521-524 [14] Long, D.H., et al.: New Carbon Materials Vol. 23 (2008), p. 165-170 [15] Zou, L., et al.: Materials Chemistry and Physics Vol. 82 (2003), p. 654-662 [16] Ting, J.H., T.L.
Hong: Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Vol. 24 (2006), p. 1794 [17]Tantang, H., et al.: Carbon Vol. 47 (2009), p. 1867-1870

The main characteristics of a surface are physical and chemical structure, surface tension and surface roughness.
Introduction Alumina thin films are widely used in the fields of optics, mechanics, micro-electronics, and chemistry, because of their excellent properties in terms of transmittance, hardness, chemical inertness, and resistivity [1-4].
The self-shadowing effect leads to the formation of the characteristic columnar structure of thin films in Z1.
Caymax, Surface chemistry and interface formation during the atomic layer deposition of alumina from trimethylaluminum and water on indium phosphide, Chem.
Dahn, Columnar support structures for oxygen reduction electrocatalysts prepared by glancing angle deposition, Appl.

TG-FTIR provides information on the compositions of the pyrolyzates as well as their relationship to the structures of the polyamides.
scheme 1. the molecular structure of aramid fibers The PMIA and PBIA fibers were supplied by Guangdong Charming Co.
The third class of pyrolyzates reflects the uniqueness of each linkage and structure of the backbones.
Fibre chemistry, 2005,37(3):196-198 [6] Hearle JWS．High-performance fibers．Beijing：China Textile & Apparel Press, p.136-138, p.142-146 (2004) [7] P K Roy, P Surekha, C Rajagopal.
Polymer chemistry. 1972: 245-248 [16] Musto P, Karasz F E, Macknight W J.

Polymer Structure Prediction by Computer Simulation of Ziegler-Natta Polymerization based on Charge Percolation Mechanism B.
Korugić-Karasz4 1 Faculty of Technology, Bulevar cara Lazara 1 Novi Sad, Serbia and Montenegro 2 Faculty of Technology and Metallurgy Belgrade, Serbia abd Montenegro 3 Technical Faculty, Novi Sad, Serbia and Montenegro 4 Polymer Science and Engineering, University of Massachuttes, Amherst, USA a jepi@ptt.yu Keywords: Polymer Structure, Polymerization, Ziegler-Natta.
Very often there is a discrepancy between the theoretical interpretations on the basis of the existing and the real polymer structure.
(A similar electron transfer reaction between the two transition metal ions by ligand bridge, that include transition metal oxidationreduction and chemical transformation of ligand bridge, are described in inorganic chemistry as mutually interdependent acts, neither possible without the other [8].
Wilkinson: Advances Inorganic Chemistry, 5 th Ed., (John Wiley and Sons, New York 1988), p. 1311

China 2DSAPM lab, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, P.R.
The structure of the obtained polymer was characterized and verified.
The composition and chemical structure of the polymer were analyzed.
All of the above measurements data indicate the resultant product is corresponding to the chemistry structure as we want.
The 5% decomposition temperature of the as-synthesized polymer is almost 400°C, higher than that of aniline trimer, but slightly lower than that of PIDB, polyimide with similar structure to the as-synthesized polymer but without aniline trimer segments (if the aniline trimer segments were replaced by DHBP, both of them has the same chemical structure).

The study was focused on the effect of activation (KOH soaking and Mw-A) and carbonization temperature (400oC and 500oC) on the physical and chemical structure of AC.
The morphology and characteristic study on activated carbon shown that Mw-A activation techniques gave higher BET surface area and well develop pore structure.
The advantages of activated carbon are large surface area, well-developed internal structure, and presence of various surface functional groups.
Microwave techniques have been widely used in increasing molecular solvent diffusion into the solid structure [5].
Food Chemistry. 2011,125: 255–261

The structure is comprised of 64 ions per hexagonal unit cell on 11 distinct basis sites.
The information of structure and crystallographic orientation of barium hexaferrite were obtained from X-ray diffraction (XRD) measurement with CuKa (l = 1.54 Å and 2q = 20-70 degree).
All the samples show main phase of M-type hexagonal structure corresponding to PDF No: 00-043-0002, indicating that the doping element, Pr3+ which has smaller ionic radii than Ba2+ (Pr3+ = 1.13 Å, Ba2+ = 1.49 Å) has been substituted into the barium hexaferrite structure.
XRD analysis revealed that Pr-substituted barium ferrite crystallizes in a hexagonal structure.
Acknowledgements This work was financially supported by the Graduate School Kasetsart University, Thailand, Department of Chemistry, Faculty of Science, Kasetsart University, Thailand, The National Centre of Excellence for Petroleum, Petrochemicals, and Advanced Materials (NCE-PPAM), Kasetsart University, Thailand.

Manipulation of the chemistry of self-assembled monolayers (SAMs) adsorbate molecules and incorporation of selected functional groups allow control of film structure at the molecular level and tailoring of surface properties of the substrate [2].
Fig. 3 showed that the atomic force microscope structure of the cleaned substrate after irradiated by UV for 25min and immersed in PTCS solution for 420s.
When the second UV irradiation time extended to 60min, the island structure was not obvious and became smoother with the thin film undulation at the height of 80nm.
There didn't exist the complete SrTiO3 crystal phase structure and the crystallinity was bad.
Having been annealed at 600 o C for 2h, crystal SrTiO3 phase structure had a complete transformation with the prominent (110) (111) (200) crystal plane peaks.

The hydrogenation has obvious effects on the changes of coal structure.
Hydrogenation processing disrupts a part of the bridge bond in coal structure, transforms the three-dimensional structure into a two-dimensional structure (plane nets) and makes molecular more active[6].
The hydrogenation has obvious effects on the changes of coal structure.
(In Chinese) [2] Tang Lan, Huang Haitao, Zhao Zengli: Journal of Fuel Chemistry and Technology Vol. 5(2003), p. 476-479.
(In Chinese) [4] Wang Li, Chen Peng, Wang Qi: Journal of Fuel Chemistry and Technology Vol. 4 (2011), p.309-312.

Preparation, Structure and Thermolysis Characteristics of Ammonia Borane Jianli Maa *, Haiyan Cao, Xiaoxia Zhangc and Dong Chend School of Materials Science and Engineering, Tianjin Chengjian University, 26 Jinjing Road, Xiqing District, Tianjin City, China amajianlih@sina.com, bchychem@163.com, czhangxiaoxiajia@163.com, dchendong0903@163.com Keywords: Ammonia Borane, Dehydrogenation, Thermolysis, Boric Acid Abstract: Ammonia borane (NH3BH3, AB) is an excellent source of hydrogen(19.6 wt %) for fuel cell applications.
The structure of white powder was characterized by XRD,FT-IR, and proved to be ammonia borane.
Large-Scale and Facile Preparation of Pure Ammonia Borane through Displacement Reactions, Chemistry-A European Journal, 18 (2012) 11994–11999
Gagare, Preparation of ammonia borane in high yield and purity methanolysis and regeneration, Inorganic Chemistry. 46 (2007) 7810-7817
The Effects of Chemical Additives on the Induction Phase in Solid-State Thermal Decomposition of Ammonia Borane, Chemistry of Materials. 20 (2008) 5332-5336