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It is a flexible method that provides a high degree of control on the membranes by control the fiber properties that formed from such as morphology, homogeneity, porosity, variety of structures including structures, hollow, and parallel fibers by changing the process parameters [5, 6].
The structure of electrospinning polystyrene membranes had produced as evaporating of solvent from polystyrene solution in phase separation stage [12].
"Petroleomics: Chemistry of the underworld."
"Bead structure variations during electrospinning of polystyrene."
Industrial & engineering chemistry research 45.16 (2006): 5524-5530

Crystal Structure of BiFeO3 Synthesized Using the Hydrothermal Processing Zhen Wanga, Haiyan Chenb *, Linqiang Gaoc and Xin Zoud College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China azhen365967586@hotmail.com, bhychen@shmtu.edu.cn, cglq234905@163.com, d365967586@qq.com Keywords: BiFeO3; hydrothermal; mineralizer; crystal structure Abstract.
Among the bismuth-based oxide semiconductors, BiFeO3, with a rhombohedrally distorted perovskite structure, is well known so far for its interesting ferroelectric and antiferromagnetic characteristics over a wide temperature range.
Obviously, all XRD patterns can be indexed to a BiFeO3 phase with a rhombohedrally distorted perovskite structure belonging to the R3c space group.
Feng, Size-controlled synthesis of BiFeO3 nanoparticles by a soft-chemistry route, J.

Structure of SS in the RNPP cooling water Fig. 5.
Moreover, SS of the RNPP cooling water system have a crystalline structure with an average particle size of 176 ± 35 μm, have a crystalline structure (CF = 0.61, y = 0.57, κ = 9.58), which allows their gravitational deposition by ST.
ACS Sustainable Chemistry & Engineering (2024) 12(2) 666-679. https://doi.org/10.1021/acssuschemeng.3c06231 [8] S.
Tichomirov, Water-chemistry operating condition of the second circuit power units №1-4 Rivne NPP with ethanolamine`s corrective treatment.
Sustainable Chemistry for the Environment (2024) 100151. https://doi.org/10.1016/j.scenv.2024.100151 [28] Y.

The microstructure and crystal structure were studied by SEM, EDS and XRD.
The phase structure of composite powders is the mixtures of barium ferrite and Fe2O3.
The crystal structure of composite powders is characterized by XRD.
Then the hollow microspheres were produced with situ synthesis and hollow structure.
Influence of heat treatment conditions on the structure and magnetic properties of barium ferrite BaFe12O19 hollow microspheres of low density, Materials Chemistry and Physics. 98 (2006) 90

HA belongs to aromatic macromolecular compound with a complex molecular structure and a molecular weight ranging from 103 to 106.
All of the above results demonstrate that the copolymer has the due structure.
SHA dispersant is suitable to be applied in the Bingchang coal-water slurry, meeting the needs of low viscosity and fine static stability for CWS, which attributes to the peculiar structure of the dispersant.
Stevenson, Humus Chemistry: Genesis, Composition, Reactions, Wiley, New York, 1994
Song, The chemical composition and structure of humic acids from different environments, J.

Considering the antioxidant ability and safety, more and more researchers come to pay attention to the structure-activity relationship and potential application in medicine, cosmetics and food industry of natural antioxidant peptides, etc [3].The cultivation of Pinctada Fucata not only has a vast area but also outputs high in South China Sea.
Expanding or downsizing this condition is beneficial to industrial application and the next study about structure-activity relationship of antioxidant peptides.
Food Chemistry, 2008, (111) :370-376
The Primary Structure Identification of a Corn Peptide Facilitating Alcohol Metabolism by HPLC–MS/MS[J].
Food Chemistry, 2007, 102(4): 1135-1143

Metallophore containing supernatants (of unknown structure and composition) produced by the strains showed best results at pH 8 and allowed to mobilize gallium about three times better as the pure commercially available DFOB.
These compounds are called siderophores or metallophores and have extremely high binding affinities for Fe(III) and other elements with a similar chemistry [1].
A range of binding constants of metallophores for various elements is also given and depends on chemical structure.
The elution profiles together with chelation activity clearly demonstrated that both strains produce a number of iron chelating compounds of yet unknown structure.
Hider, X.Kong, Chemistry and biology of siderophores, Nat.

It has three oxidation states, has a globular structure, mechanical stability, and thermal stability up to 250oC for the emeraldine salt (ES), doped form, and up to 420°C for the emeraldine base (EB), undoped form [7-9].
Phase composition and structures were analyzed using X-Ray diffraction (XRD, Smartlab, Rigaku).
Morphological analysis in the study of Vijayakumar et. al. showed that the nanocomposites are composed of bentonite layers with the globular structure but amorphous PAni particles [15].
Newman, Chemistry of Clays and Clay Minerals, John Wiley and Sons, New York, 1987
Funke, Jump relaxation in solid electrolytes, Progress in Solid State Chemistry, 22 (1993) 111-195 [22] L.

Since one of the most important characteristics influencing many other properties is pore structure, pore size distribution curve is presented on figure 1.
It is obvious that by adding basalt fibres, pore structure of composite is changed.
References [1] Komonen, J., Penttala, 2003, V., Effects of high temperature on the pore structure and strength of plain and polypropylene fiber reinforced cement pastes, Fire Technology, Vol. 39, p. 23-34
Materials and Structures, Vol. 37, pp. 597-607
[9] Helwlett, P., Lea's Chemistry of Cement and Concrete, Butterworth-Heinemann, 2003 [10] Roels, S., Carmeliet.

The deposited film is polycrystalline and all of the diffraction peaks can be indexed as the monoclinic structure of the Ag2S [19].
The X-ray diffraction analysis showed the (1 0 0) plane as the preferred orientation with monoclinic structure of Ag2S thin films.
Hishita, Epitaxial growth of Ag2S films on MgO (001), Journal of Solid State Chemistry, 177 (2004) 1165-1172
Starbov, Crystalline structure and phase composition of epitaxially grown Ag2S thin films, Solid State Ionics, 171 (2004) 269-275
Lokhande, Photoelectrochemical investigation of Ag2S thin films deposited by SILAR method, Materials Chemistry and Physics, 72 (2001) 105-108