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To prepare core-shell structure pigments, researchers developed many methods.
The core-shell structure could improve the thermal stability of the pigments.
The core-shell structure could improve thermal stability and acid stability of pigment.
Chi, Core–shell structured Ce2S3@ZnO and its potential as a pigment, J.
Bao, Nano Chemistry: Chemical construction and application of nanometer system, Beijing: Chemical Industry Press, (2006)56

Mutually eroding of acid substance and alkali substance mixture Circumstance water, laterite and reinforcement material are 3 critical elements in the long-term evolution of geotechnical structures, whose mutual reaction and physical change decide service life of geotechnical structures.
Colloid chemistry considered that when medium pH is less than substance Isoelectric pH, surface of substance has positive charge; on the contrary, surface of substance has negative charge[06].
Geotechnical structures, constructed with laterite, belonging to weak acid structures, can be chronically deteriorated by alkaline reinforcement materials.
Collochemistry character of the structure connection among laterite mineral grain [J].
Computational Chemistry and Chemical Engineering.

The structure and the properties of the SMAT sample were analyzed by means of the optical microscope, hardness and polarization curve testing.
Introduction Surface crystallization[1] is a technic that attain nanostructured grain on surface layer through the physics or chemistry ways, the matrix still keep conventional coarse-grained counterparts，which can successfully improve the surface properties, such as fatigue strength, corrosion and wear resistant, etc.
The nanostructured layer SMAT-ed through this technology could not loss apart from the matrix, and the structure vary from surface to base, which offers an effective method to study the grain refinement mechanism of plastic deformation.
Zirconium and its alloys is a typical hcp structure.
The reason that this gradient structure appears May be due to the reduction of strain and strain rate with increasing distance apart from the surface treatments.

Polyimide films with various cellular structures were obtained by controlling coagulation bath compositions and temperatures.
The effects of chemical structures, cellular structures on dielectric property of cellular polyimide films were studied.
Cellular Polyimide films filled with uniform small cellular structures behaved excellent dielectric property compared with those large-pore cellular films.
These obtained cellular films have wide-range pore diameter (from nanometer to micrometer), different pore structures (finger-like or sponge-like) and high porosity [4,5].
Rigid-chain structure based polyimides were ready to produce cellular films with homogenous small cells and would display potential application in low dielectric equipments.

Chitosan-based materials can be made in various forms, such as films, hydrogels, nanowires, and three-dimensional porous structures [3].
For the formation of these structures, the polymer is pre-dissolved in an aqueous acidic media; as a result, chitosan turns into a salt form [4] The most widespread methods for producing a three-dimensional porous structure based on chitosan are below.
The development of new competitive methods for obtaining a three-dimensional porous chitosan and its composites structures is still relevant.
Results and Discussion The originality of the developed method of forming a three-dimensional structure is that at the same time the conversion of chitosan into the base form and the formation of a porous structure occurs.
Dashti, A Review on Chitin and Chitosan Polymers: Structure, Chemistry, Solubility, Derivatives, and Applications, Chem.

The structures of 2BP and the DLCM were characterized by FT-IR and 1H-NMR.
Their highly symmetric structure leads to a number of interesting characteristics and features, including good solubility, low viscosity and compatibility.
The structures and thermal stabilities of 2BP and the dendritic liquid crystal macromolecule were characterized and measured by FT-IR, 1H-NMR, TGA and DSC.
This was mainly due to the biphenyl structure and regular molecular dendrimer network structure.
The chemical structures of the 2BP monomer and DLCM were characterized by FT-IR and 1H NMR methods.

Characterization of cobalt-based catalyst supported on TiO2 nanofibers for Fischer-Tropsch synthesis Shi-Yong Yua, Yun Ma, Zhen Cao, Hai-quan Sub* College of Chemistry & Chemical Engineering, Inner Mongolia University, Hohhot 010020, P.
The structure of the catalysts was examined and cobalt-based catalysts using TiO2 nanofibers as a support for the application of FT were investigated.
Results and discussion Structure and Morphology.
The structure of the as-synthesized nanofibers should be similar to that expected for a fibered titanate[22].
Hercules, The structure and activity of titania supported cobalt catalysts.

In the present research work, an anatase structure titanium dioxide nanoparticle was synthesized by hydrolysis of titanium isopropoxide in the presence and absence of ultrasonication.
Control of the size, shape, and structure of the colloidal precursor is an important factor in determining the properties of the final material.
Thermo gravimetric analyzer was used for confirmation of crystal structure of nanoparticles.
El-Sayed, Chemistry and properties of nanocrystals of different shapes, Chem.
Jolivet, Metal Oxide Chemistry and Synthesis – From Solution to Solid State (John Wiley & Sons, Chichester, 2003

The possible causes of this increase and resolution of the fine absorption structure of the nanostructured CuO are discussed.
Investigations of features of the electronic structure of nanooxides are almost absent.
The lattice of CuO has a low-symmetry monoclinic structure.
The distinctions are marked in the energy range less Eg where the structure connected with absorption on defects of nanooxides arises.
Chebotaev: Superconductivity: physics, chemistry, technique Vol. 3 (1990), p. 323.

The coatings on titanium had a hexagonal Hydroxyapatite structure with unit cell parameters, which calculated from the XRD pattern of Ca10(PO4)6(OH)2 (a=b=9.352 Å and c=6.882 Å) obtained from ICSD database reference pattern Hydroxyapatite 01-086-0740.
[3] Yen SK, Lin CM: Materials Chemistry and Physics,Vol.77(2002) No.1, p.70-76