Search results

All of semiconductor materials, TiO2 and modified structure TiO2 are widely used because they are highly photocatalytic, stable, abundant, and environmentally safe [2].
It is believed that ability to control the structures of TiO2 NTs can be expected to positively impact a variety of important technologies and the structures of TiO2 NTs depend largely on many preparation parameters such as temperature, electrolytes, anodic voltages, and dopants.
In this paper, we present the effect of electrolytes and dopants on the structures and photoelectrochemical properties of TiO2 NTs for hydrogen production.
Clemens, Physical Chemistry B 108 (2004), p. 15446
Liu, Chemistry Mater 21 (2009), p. 1198

Initial Stage Oxidation of Cr in Dry and Wet Environment at 1073 K and the Significant Differences of FT – IR Spectra Produced Thereof Akbar Kaderi1,a, Shahrul Razi Meskon1,b, Mohd Hanafi Ani1,c and Raihan Othman2,d 1 Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University Malaysia, Jalan Gombak, 53100 Kuala Lumpur, Malaysia 2 Department of Sciences in Engineering, Faculty of Engineering, International Islamic University Malaysia, Jalan Gombak, 53100 Kuala Lumpur, Malaysia aakbarkaderi@gmail.com, bs_razi1803@yahoo.com, cmhanafi@iium.edu.my (corresponding author), draihan@iium.edu.my Keywords: High temperature oxidation of Cr, Cr2O3, dry and wet environment, surface chemistry of Cr, IR studies.
Moreover this can be significantly altered by the oxide defect structure and alloying additions.
These differences in the characteristic might give the answer on the effect of water vapor oxidation on the surface chemistry of Cr thus promoting the accelerated oxidation of Cr.
Joyce, Interaction of D2O with the Fe2O3 (111) and the biphase ordered structures on α– Fe2O3 (0001), J.

The coupling effect of physics, chemistry and mechanics is through charring layer in the process of ablation of the insulation material.
The structure of test motor was showed in the fifth reference.
The structure of charring layer was given in figure 1.
The result shows that the pore structure of charring layer is even and more compact.
Thermo-chemical ablation model of EPDM with porous structure characteristic[J].

China 2 Department of Chemistry and Chemical Engineering, Huainan Normal University, Huainan 232001, P.
China 3 Science and Technology on Combustion and Explosion Laboratory, Xi’an Modern Chemistry Research Institute, Xi’an 710065, P.
Mg is a hexagonal close-packed crystal structure.
Therefore, the Mg(001) has the most stable structure and the lowest surface energy.
The surface structure is important for understanding the relationship of structures and physical properties for the active alkaline-earth metals.

Photoisomerization of Some Functional Azobenzene-containing Metal Complexes with Different Substituted Groups Jingxin Zhou1, Tifeng Jiao1,2,a, Fengyan Wang1 and Xuhui Li1 1Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China 2College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, 325027, China atfjiao@ysu.edu.cn Keywords: Azobenzene, Functional material, Substituted groups, Spectral measurement, Thermal analysis.
Spectral data confirmed commonly the characteristic absorption of substituted groups and aromatic segments in molecular structures.
The difference of thermal stability is mainly attributed to the formation of Schiff base group and different substituent groups in molecular structure.
The structures of these molecules were confirmed by 1H NMR.
Chemical structures and abbreviations of azobenzene derivatives.

Preparation, Spectral Characterization and Crystal Structure 2-Acetyl-2'-chloroacetanilide Xi-Shi Tai 1, a 1 College of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, P.R.
The complex forms layered structure through p···p stacking interaction.
Fig. 1 The IR spectrum of 2-acetyl-2'-chloroacetanilide Crystal Structure The molecular structure of 2-acetyl-2'-chloroacetanilide is shown in Fig. 2.
The bonds distances and angles in this structure are agreement with the beta-diketonato that reported in reference.
The crystal structure is stabilized by N-H···O intramolecular hydrogen bond.

Introduction Since the scientific and the industrial discovery of the surfactant-templating of hexagonal, cubic, and lamellar meso or nano structured silica, the materials chemistry has entered into the field of inorganic design and synthetic development with relative complex form [1].
The nanoengineering and nanochemistry is one of interesting researches in the materials science, the solid-state chemistry, the semiconductor physics, the biomimetics, and the biomaterials [2,3].
The mesoporous structures of such materials are largely determined by the structure and polarity of the organic groups [25].
Schuth, Oil-Water Interface Templating of Mesoporous Macroscale Structures , Science, 273 (1996) 768-771
Schuth, Mesoporous Silica Fibers: Synthesis, Internal Structure, and Growth Kinetics, Chem.

Introduction Currently, materials with a hierarchical structure are being actively developed and implemented.
SiO2 nanopowders were also purchased from “Aladdin Chemistry” and had high purity.
Wiberg, Inorganic Chemistry, San Diego: Academic Press, ISBN 0-12- 352651-5, 2001
Silicon chemistry: from the atom to extended systems.
Devine Microscopic structure of the center in amorphous SiO2: a first principles quantum mechanical investigation.

Introduction The connection between polymer science and materials science requires the synthesis of various polymer structures in order to obtain materials with new properties.
It is this versatility that establishes PGMA as a general and powerful reactive scaffold in polymer chemistry [11].
Horvath (Eds.), Handbook of Fluorous Chemistry, WILEY-VCH, Weinheim, 2004
Proceedings Chemistry. 3 (2018) 207
Chines Jourmal of Chemistry. 30 (2012) 2138-2144

At nanolevel, surface-active centers are of electrochemical nature, associated with both the initial sorbent structure defects (primary centers), and the ones constantly forming during the reaction of the saline solution with the sorbent surface (secondary centers).
Panov, Static adsorption of cobalt ions from aqueous media ceramic grit, Chemistry and Chemical Engineering. 47(7) (2004) 22-24
Perfil'ev, Preparation and properties of organic-mineral hydrophobic adsorbents based on natural aluminum silicates: dissertation PhD Chemistry, Vladivostok, 2003
Pashkeev, Features Irreversible Sorption of Heavy Metals Granular Sorbent Based on Calcium Silicates and Aluminum Silicates, Bulettin of South Ural State University, Chemistry.
Galimov, Structural features of the irreversible composite sorbent on the basis of silicates and aluminosilicates of calcium, Bulettin of South Ural State University, Chemistry. 13(2) (2013) 47-53