Search results

The simulated structure of α-Fe2O3 (111) with and without adsorbed gas molecules was subjected for CASTEP energy calculations.
Results and Discussion The hematite imported structure is shown in fig 1(a) and geometry optimized primitive structure of rhombohedral symmetry is shown in figure 1(b).
Figure1: Structure of (a) α-Fe2O3 (b) Geometry optimized structure of α-Fe2O3(c) Localization of H2, N2 molecules in α-Fe2O3 (111) surface Adsorption energy values according to different orientation of gas molecules are -4.70kcal/mol, -4.60kcal/mol,-4.38kcal/mol and -3.77kcal/mol.
Rodgers , "Magnetic field effects in chemical systems," Pure and Applied Chemistry, vol. 81, no. 1, pp. 19-43, 2009
Kitagawa, "The relationship between the magnetic moment of a metal atom and its catalytic activity," The Review of Physical Chemistry of Japan, vol. 11, no. 2, pp. 71-75, 1937.

The property was elucidated by the fully interconnected porous structure of the resins.
So synthesized resin does not have the fluffy structure, resulting in slow oil absorption rate.
The structure and morphology was characterized by scanning electron microscopy (SEM) techniques.
Divinylbenzene (DVB; containing 50% ethylstyrene, from Aladdin Chemistry, China) was purified by washing three times with 5 wt% sodium hydroxide solution followed by three times with deionized water.
This demonstrated that the micro structure of resins did not change much, so the resins could have the excellent recyclability.

Influence of the composition and preparation methods of the catalysts for methane combustion Chenchen Weng1,a, Yinhua Ma1,b, Yunshuang Fu1,c, Jianan Hu1,d, Ruisheng Hu1,e* Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China *Corresponding author.
Fornasiero[1] reported that the functionalized palladium nanoparticles and cerium (IV) oxide self-assembled supramolecular catalysts with core-shell structure.
Because pristine alumina is highly hydrophilic, they observed minimal interactions between the alumina support and the hydrophobic Pd@CeO2 structures, and the Pd@CeO2 structures tended to agglomerate with one another rather than adhere to the support.
Fanyan Liu[5] reported that for Pd-Based monolithic catalysts, coat on cordierite surface have an influences on structure and performance of the catalysts.
The results of characterization indicated that cerium doping could deform the spinel structure and cause redistribution of metal ions with different oxidation states.

Hence, an effort to modulate the band structure of ZnS to meet the special functions is being pursued.
Electronic Structure.Fig.2illustrates the energy band structure, partial and total electronic density ofstates(PDOSandDOS)ofpureZnSsupercellsystemshowedinFig.1.Zeroofthe bandstructureinFig.2is Fermienergylevel.
Luo: Journal of Materials Chemistry.Vol.22(2012), P.6856-6861
Li:Journal of Materials Chemistry.
Martin: Electronic Structure: Basic Theory and Practical Methods; (CambridgeUniversity Press, Cambridge England 2004).

Effects of an Extended Amphipathic Helix on Intermolecular Interactions and Self-Assembly of Peptides via Pulsed Field Gradient Nuclear Magnetic Resonance Chang-Shin Lee 1, a, Wei-Cheng Tung 1, 1 Department of Chemistry, Tamkang University, No.151 Yingzhuan Rd., Tamsui Dist., New Taipei City 25137, Taiwan, R.O.C.
We, therefore, conceive this work to study the interdependence of structure, intermolecular interactions and self-assembly by determining the oligomeric states of peptides that have controllable structures via PFGNMR at variable temperature.
Solid-phase peptide synthesis was based on N-9-fluorophenylmethoxycarbonyl (Fmoc) chemistry on a Rink amide AM resin.
Primary structures of hNPY and the peptides synthesized in this work.
The secondary structure of peptides induced by the helix-promoting solvent TFE was first measured with TFE concentrations varying from 0% to 100%.

Therefore, by studying the different structures of the ammonium alkyl modifiers´adsorption characteristics in interlayer which have different crystalline characteristics, the adsorption mechanism, significance and control methods of long carbon chain organic cations in montmorillonite interlayer, especially by systematic research and explain adsorption process and mechanism of montmorillonite layers to determine the relationship of different structure ammonium alkyl´s adsorption capacity with gel properties and its adsorption stability, thus to provide theoretical basis for the control of structure and gel performance in the preparation of montmorillonite alkylammonium .
The research found that the amount of ammonium alkyl and reaction time have significant effects on the structure and properties of the product, when give a certain amount, the montmorillonite / ammonium alkyl compound´s structure and performance with reaction time are dynamic, this is also reflected from another side ammonium alkyl montmorillonite with different amount of absorption features [4,5,6].
National Natural Science Foundation-“Study on the Structure and Colloidal Properties of Montmorillonite/Alkylammonium Complexes(No:50774050)”.
Zhao: Physical chemistry of surfactants (Beijing university press, Beijing , China,1991)
Gong: Chemistry, Vol .7（2002）,P.440-444

Reyes1,a 1School of Chemical Engineering and Chemistry, Mapua University, Manila, Philippines alqreyes03@gmail.com Keywords: polyester, polyurethane, biomaterial, biodegradable, elastomer Abstract.
Other properties that significantly affects cell attachment, morphology and proliferation are the scaffold’s surface chemistry and topography, including the roughness and curvature.
Fig. 2 FTIR (a) and representative NMR (PEU 50:50) (b) spectra of PEU samples The monitor the occurrence of polymerization and molecular structure of the PEU samples FTIR and H1-NMR spectroscopy was done.
Oprea, “Dependence of fungal biodegradation of PEG/castor oil-based polyurethane elastomers on the hard-segment structure,” Polym.
Abraham, “Effect of the hard segment chemistry and structure on the thermal and mechanical properties of novel biomedical segmented poly(esterurethanes).,” J.

Antibiotic delivery potential of nano- and micro-porous marine structure-derived beta-tricalcium phosphate spheres for medical applications.
Journal of Materials Chemistry B. 2 (2014) 6157-82
Marine structure derived calcium phosphate-polymer biocomposites for local antibiotic delivery.
Journal of Materials Chemistry. 18 (2008) 1873-80
Industrial & Engineering Chemistry Research. 53 (2014) 15374-82.

Viney, Chapter 1, Silk: Biology, structure, properties, and genetics, Am.
Kirichenko, Structure and Solubility of Natural Silk Fibroin, Russ.
Effect of chitin/silk fibroin nanofibrous bicomponent structures on interaction with human epidermal keratinocytes.42 (2008) 324-334
Romanowski, Beginning Cosmetic Chemistry, 3rd Edition.
Weigmann, Mechanical amd fractographic behavior of Negroid hair, Journal of the Society of Cosmetic Chemistry 35 (1984) 21-43.

And the structure of binary system CaO-Al2O3 differs from [2,17].
Summary There are some variants of the СaО–Аl2О3–SiО2 phase diagram mainly due to differences in the structure of the СaО–Аl2О3 binary system.
Taylor, Cement Chemistry, Academic Press, London, 1990
Lea, Lea's Chemistry of Cement and Concrete, Elsevier Ltd, London, 1998
Aleksenko et al., Phisical Chemistry of Silicate, ed A.A.