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The dimension of structure varied based on the preparation technique, synthesis and chemical modification.
This result consistent with Fig. 4 at 0.1 M while Fig. 5 (b) exhibited that compact and dense structure of TiO2.
Fig. 3 (c) showed the TiO2 nanostructure growth all on the glass surface without compact and dense structure at around 3 to 5 nm height of structure.
El-Sayed, Chemistry and Properties of Nanocrystals of Different Shapes , Chem.
Alivisatos, Perspectives on the Physical Chemistry of Semiconductor Nanocrystals, J.

Because its rich intercalation chemistry, it can be chemically modified and become organic montmorillonite (OMMT).
Ltd, China, its molecular structure formula is shown in Fig.1.
The curing agent must be added to make the linear epoxy into reticulate structure, for the pure epoxy is no value in use.
The XRD patterns and SEM photographs indicate that the formation of intercalated structures and the exfoliated structures in the epoxy/OMMT nanocomposites. 5.
Vol. 41(2000), p. 3639 [20] Homer E Kissinger: Analytical Chemistry.

However, biological apatites differ from stoichiometric HAp in several respects including the substitution of other cations into the crystal structure such as Na, Mg, Sr and Zn [1].
XRD analysis (Fig. 1) showed that all precipitation products had a structure corresponding to the HAp (PDF [9-0432]) desired.
Introduction of Mg2+, Zn2+ and Sr2+ into the apatite structure decreased crystallinity, while co-introduction of Na+, even at a very low level, improved crystallinity.
Incorporation of Zn into the apatite structure, alone or with Na, reduced lattice parameters in accordance with the Zn ionic radii [9].
Elliott, Structure and Chemistry of the Apatites and Other Calcium.

The Electronic Properties of Al-, P-Doped and Al, P co-Doped Boron Nitride Nanotubes Miao Sun1,a; Gonglian Wu1; Ting Ye1; Hui Zhang1; Zhaodi Yang1; Zesheng Li 2,b 1College of Chemistry and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, China; 2College of Chemistry, Key Laboratory of Cluster of Ministry of Education,Beijing Institute of Technology, Beijing,100081,China aEmail: miaosun@hrbust.edu.cn bEmail: zeshengli@bit.edu.cn Keywords: BNNT; Al, P doped; Density Functional Theory; Electronic properties Abstract.
Yet, their structure and electronic properties can be modified through doping the tube.
The geometric structure Firstly, pure BNNT (6, 6) is optimized and the electronic band structure is calculated, and B-N bond lengths of pure BNNT (6, 6) rang from 1.4160 to 1.4200 Å.
From the fully relaxed structure, we can find that the structure changes a lot and the doped atoms move outwards due to the interaction between the impurity atoms and B or N atoms.
By the situations of Al-doped BNNTs, the band structure changes in several aspects.

Conducting Behavior of Bischalcone Derivatives Aswini.R1,a*, D.Lakshmi Devi2,b and S.Kothai3,c, 1Research Scholar (Ph.D), Department of Chemistry, Ethiraj College For Women, Chennai-8. 2Assistant Professor, Department of Biochemistry, Ethiraj College For Women, Chennai-8. 3Principal, Associate Professor & Head, Department of Chemistry, Ethiraj College for Women, Chennai-8.
Polymers are much more efficient by modifying their chemical structure and can control their properties [16].
Structure of Copolyester PTMI Results and Discussion A.
Bioorganic and Medicinal Chemistry. 14, (2006), 3491–3495
Journal of Physical Chemistry B, 103(32), (1999), 6648–6652

They are characterized by porous micro-structure with greater than 100nm in diameter.
Vayenas, Effect of Composition, Environmental Factors and Cement-lime Mortar Coating on Concrete Carbonation, Materials and Structures, 25, No. 149, pp. 293-304, 1992 [9] P.
Hewlett, Lea’s chemistry of cement and concrete, 4th edition, 2010 [11] Th.
The VIth International Congress on the Chemistry of Cement, Vol 2, book I.
Journal of Physico-chemistry 66:380, 1962 [20] Wagman DD et al.

The low energy, solid state structure of the cluster was obtained as a deformed pentagonal bipyramid.
The values used in this work, 1.37 Å and 1.448 Å were taken from quantum chemistry calculations [10].
For the low energy Et = -0.43 eV/molecule (solid phase) it shows several peaks associated with the deformed pentagonal bipyramid structure of the cluster.
Khanna, The Physics and Chemistry of Small Clusters, Plenum, New York, 1987 [13] E.

The aim of this overview is to highlight the contribution that materials chemistry has made to the development of LSGM based SOFCs. 1.
Defect chemistry The defect chemistry, as given by Lybye et al. [37], is summarized below for elucidating the contributions from the p- and n- type electronic conduction.
These structures are different from the perovskite structure and exhibit low conductivities.
Although for an ideal structure t is unity, this structure is also found for lower t values (0.75< t < 1.0).
Synthesis using wet chemistry, popularly known as "chemical route", can overcome many of these disadvantages.

Calcination Influence on the Structure and Morphology of Zirconia Synthesized by Combustion Reaction Silva, F.
The pure zirconia synthesis (monophasic) is complex, because it is a polymorphous material, whose more common crystalline structures are: monoclinic (m), tetragonal (t) and cubic (c) [6], and it may be found in another less common crystalline structure, called orthorhombic (o) [7].
Several methods of chemical synthesis are being investigated for obtaining of ZrO2, always seeking to obtain a material with nano-sized particles and single phase material, or seeking the understanding about its changes on the structure and morphology.
The stoichiometric composition of the precursors mixture was calculated in accordance with the valences of reactive elements, based on the propellants and explosives chemistry, whereas the reagent oxidizing/reducer reference equivalent to unit, f = 1 [11].
[16] IUPAC – Internacional Union of Pure and Applied Chemistry, Handbook vol, 2 (1976), p. 57

The surface structure produced at current density of 5 A/dm2 was homogenous and compact, with few micropores and microcracks.
The initial 3D flower-like structure is removed by extending the absorption time to 72 hours.
[12] Saji Viswanathan S, Organic conversion coatings for magnesium and its alloys, Journal of Industrial and Engineering Chemistry 75 (2019): 20-37
Wang, Formation mechanism of calcium phosphate coating on micro-arc oxidized magnesium, Materials Chemistry and Physics 130, no. 3 (2011): 1118-1124
Trabanelli, Organo-silane coatings for AZ31 magnesium alloy corrosion protection, Materials Chemistry and Physics 110, no. 2-3 (2008): 263-268