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All of the crystal structure of Pr-Nd oxides belonged to hexagonal phase.
The symmetry of crystal structure of Pr-Nd oxides consisted with the main crystal structure of neodymium oxide.
They were single uniform crystal structures.
Magnetic force imaging of domain structures for a (Pr/Nd)FeB alloy[J].
Surface chemistry of zirconia nanopowders doped with Pr2O3:an XPS study[J].

Synthesis and Crystal Structure of 9,9-dipropionitrilefluorene Hu Yuan-fang School of Chemistry and Environmental Engineering,Hubei Institute for Nationalities, Enshi 445000, China Email: fengfu04971118@163.com Keywords: Fluorene, Microwave, Crystal Structure Abstract.
Its structure was determined IR, 1H NMR, MS, elemental analysis and X-ray diffraction.
The crystal structure was determined by X-ray diffraction as part of our ongoing structural studies to provide a basis for the consideration of stereochemical structure-activity relationships.
The crystal structure of the title compound is revealed in Fig.1.
Molecular structure References [1] W.Q.

Preparation and Characterization of Ni-Modified Fe-Mo and Catalytic Selective Oxidation of p-Xylene Zu-Zeng Qin1,2, Zi-li Liu1, a, Yan-bin Liu2, Rui-wen Liu2 1 School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China 2 School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China a Corresponding author.
XPS analysis shows that the introduction of Ni changes the internal structure of the Fe-Mo catalyst improves catalytic performance.
This phenomenon indicated that the MoO3 structure was influenced by Mo doping.
This finding suggested that excessive amounts of Ni could damage the structure of Fe2(MoO4)3 and go against the reaction.
Excessive amounts of Ni will damage the structure of Fe2 (MoO4)3, the addition of Ni not only reduces Mo5+ content but also influences the grain structure of the catalyst and changes the state of Mo species.

Chemistry limits of ATI 425® Alloy from ASM 6946.
For the purposes of this study, similarly processed materials with similar microstructures were considered in order to attempt to isolate the chemistry effects.
The dependence of phase stability and crystal structures on e/a ratio dates back to some of the early work of Hume-Rothery [9].
Haworth, Structure of Metals and Alloys, fifth ed., Metals and Metallurgy Trust, London, 1969
Nadezhdin, Stacking fault energy and dislocation structure of titanium alloys, Phys.

Synthesis and Preparation of Desulfurization concerned Naphthenic Acid Type Ionic Liquid Qiang Wang1, Li Guobi2, Peng Cheng3, Shidong Wang1, and Shu-liang Zang1,a* 1 School of Chemistry and Materials Science, Liaoning Shihua University, Fushun 113001, China 2 College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China 3 Key Laboratory of Rare and Scattered Elements, College of Chemistry, Liaoning University, Shenyang 110036, China armonline@126.com Keywords: Snaphthenic Acid, Corrosion, Imidazole, Ionic Liquid, Synthesis Abstract.
As human concentrate environment protection in 21st century, researchers put a slogan of “green chemistry”, and in line with the aim of “green chemistry”, come up with a green solvent,ionic liquid.
Ironic liquid, as an efficient green solvent, has been one of research hotspots in contemporary chemistry.
Ionic liquid is a typical ionic compounds, its melting point is lower, mainly because asymmetry of some substituents in its structure makes the ion cannot be stacked into crystals with rules.

The issues of the relationship of their structure with antimicrobial activity are highlighted.
The introduction of guanidine groups into the structure of chitosan allows one to increase its solubility and biological activity [2-5].
With increasing polyguanidine content, cellulose microfibrils in the composite aggregate, forming a more compact structure (Fig. 4) Fig. 4.
Malkanduev, New metal complexes derived from guanidine-containing dialdehyde cellulose, Fibre Chemistry. 49 (2018) 437-441
Dolbin, Study of complexes of polymethacrylate guanidine with magnesium ions, Fibre Chemistry. 50 (2018) 49-52

Its structure was identified by Fourier transform infrared spectroscopy (FTIR).
Structure identification of cationic graft starch: The structure of cationic graft starch was confirmed by Gang Dong FTIR-650 Fourier transform infrared spectrometer.
Sizing formulas for 13.3 tex polyester/cotton blended yarn (T/C 55/45) Sizing formula Composition [%] 1 2 3 cationic starch 100 --- --- PVA --- 100 --- cationic graft starch --- --- 100 acetate starch 100 100 100 native starch 80 80 80 antifriction agent 9.5 9.5 9.5 smooth agent 9.5 9.5 9.5 emulsifying oil 10 10 10 poly-acrylic size 12.5 12.5 12.5 solid content 16 16 16 Results and Discussion Structure identification of cationic graft starch: Fig.1.
[9] Hang Zhou university chemistry department Analytical chemistry teaching and research section: Analytical chemistry book (Chemical Industry Press, China 1983)

The Bamboo charcoal has developed internal pore structure and larger specific surface area, so it can strongly absorb the toxic gas in the environment.
Currently the improvement of the bamboo charcoal adsorption mainly focuses on the restructuring of the pore structure and surface modification.
Xu, etc.: Chemistry and Industry of Forest Products, vol. 24 (2004) No.4, p.5.
Zhang: Chemistry and Industry of Forest Products, vol. 5 (2008), p.31-34.
Ding: Chemistry and Industry of Forest Products, vol. 1 (2009), p.33-38.

In this paper the aim is to combined with TiO2 to form p-n heterojunction structure to improve the photocatalytic efficiency.
The comparison of XRD pattern of pure P25 and Cu2O/TiO2 indicate that the interposition of Cu2O in the TiO2 has no effect on the crystal structure of P25 powders, the main structure is preserved.
The high magnification TEM measurements of P25 and Cu2O/P25 nanoparticles were performed to characterize the subtle structure which is shown in figure 4A and B respectively.
European Journal of Inorganic Chemistry, 2013. (8): p. 1358-1362
Environmental Chemistry Letters, 2014. 12(1): p. 27-47

XRD results reveals that single phase Y2Ce2O7 with fluorite structure was synthesized.
It is well known that there are two kinds of crystal structure of A2B2O7 oxides, which are pyrochlore structure and fluorite structure respectively.
There are two additional weak peaks between 2θ=40°and 50° in XRD patterns of pyrochlore structure, which can help us to distinguish the fluorite and pyrochlore structures.
It can conclude that pure Y2Ce2O7 ceramics with fluorite structure are synthesized in this research.
Summary Single phase Y2Ce2O7 with fluorite structure was synthesized by solid state reaction between Y2O3, CeO2 powders at 1600°C for 10 h.