Search results

Study of an Inorganic Ion Exchanger Li1.2Zn0.9PO4 Jinhe Jiang MicroScale Science Institute , Department of Chemistry and Chemical Engineering ,Weifang University, Weifang, 261061,China Corresponding author.
Chemical composition, structure and some related properties and complex mechanism of this ion exchanger are investigated by electron microscopic, X-ray diffraction and chemical methods.
In this paper, the solid state reaction crystallization method was used to synthesize the Li1.2Zn0.9PO4 of spinel-type oxide, whose composition and structure are different from those in literature [3-4].
The structure of compound metal oxide Li1.2Zn0.9PO4 crystallized at 750℃ was much perfect.
Prpperty of H2TiO3 type ion-exchangers and extraction of lithium from brine of natural gas wells J.Chinese Journal of Applied Chemistry.2000,17(3),307

Chemistry reaction happened between components of coatings and nano-PbWO4 particles, thus it showed good compatibility with binders.
The film structure was measured by Nicolet-5700 infrared spectrometer.
This not only enhances the network structure of the coating, but also improves leveling of coating, so the coating surface is smooth.
Ismail, “Natural fire high-density poly-ethylene and lead oxide composites for radiation shielding”, Radiation Physics and Chemistry, vol. 66 (2003), pp. 185-195
Salin, “Ionic Ferrofluids A Crossing of Chemistry and Physics”, Magn Mater, vol. 85 (1990), p. 27

Introduction From the molecular structure theory, we can know that each atom in the molecule bonded together through the chemical bond strength. 
At the same time, with the continuous development of computer technology and the algorithm based on quantum chemistry can increase, the system continuously, now quantum chemistry in computer aided drug design has played an irreplaceable role.
Molecular structure: C4H5O+ C7H12O+ Figure 1: The mass spectrum Theoretical calculations In 3-21G * basis, we set optimization of C7H12O+ hull structure with the density functional B3LYP method, and frequency calculation at the same level, The results showed no imaginary frequency, the configuration has been optimized for a minimum energy structure.
C4H5O+ structure shown in Figure 2: Figure 2: The stable structure of C4H5O+ Conclusion The way of produce C4H5O+ fragments is C7H12O+ C4H5O+ + C3H7 + 1C-7C, 4C-5C off, one of 9H, 10H migrates, and one of 11H, 12H on the 3C migration to the 4C. 
The basic principles of quantum chemistry and ab initio calculation [M].Beijing: Science press, 1985 [3] Lubman D M, Naaman R, Zare R N.

Moreover, the mechanism of catalytic hydrogenation was elucidated through structure characterization of the final products using elementary analysis, and ultraviolet spectrophotometer.
This was due to the olefinic structure of shellac added by chlorine was recovered while the chlorine was substituted by hydrogen.
Gan: Chemistry and Industry of Forest Products (in Chinese) ,Vol.14(1994),p9 [13] C.Y.
Ha, D.X.Wang: Chemistry and Industry of Forest Products(in Chinese),Vol.7(1987),p32 [14] C.Y.
Ha, D.X.Wang: Chemistry and Industry of Forest Products (in Chinese),Vol.17(1997),p1 [15] C.Y.

In this study, two Zr- MOFs, MIP-202 and UiO-66-NH2, were synthesized and various analyses were performed to evaluate their morphology, porosity, chemical composition, and chemical structure.
The chemical structure of the prepared MOFs was recorded using infra- red spectra using FTIR (Thermo-Scientific Nicolet, USA).
The data collected from PXRD for each sample confirmed the topology generated from UiO-66 NH2 and MIP-202 structure as shown in Fig. 1.
Diercks, Introduction to reticular chemistry: metal-organic frameworks and covalent organic frameworks
Royal Society of Chemistry, pp. 707–717, 2018. doi: 10.1039/c7tb02970e

Functionalized nanoparticles have powerful applications as intermediates between solution and surface chemistry and as tools for nanofabrication.
Functionalized nanoparticles have powerful applications as intermediates between solution and surface chemistry and as tools for nanofabrication.
Chemical structures of adamantane carboxylate (2) and the adamantyl-terminated PPI dendrimers (3).
Essential is the finetuning of the chemistry in order to keep the PMMA structures.
NIL provided down to sub-100 nm poly(methylmethacrylate) (PMMA) structures.

Fig. 1 Picture of SEM As shown in Fig.1, small openings developed well in internal particle, showing three-dimensional network-like structure with loose structure.
Oilfield Chemistry(2005).
Oilfield Chemistry(2004).
Oilfield Chemistry(2010).
Jiangsu Chemistry(2003).

Take-henko: The Journal of Physical Chemistry C, Vol. 111 (2007) No.16, p. 6133
Stokkum: The Journal of Physical Chemistry B, Vol.117 (2013), No.38, p.11239
Valiyaveettil: Journal of Materials Chemistry, Vol. 19 (2009) No. 24, p. 4268
Torres: Journal of Materials Chemistry, Vol. 13 (2003) No.4, p. 700
Wang: Chemistry - A European Journal, Vol. 15 (2009) No. 35, p. 8902.

Both VC and VN are FCC-crystal structure and NaCl-type.
Table 1 Chemistry of investigated steels (mass%) No.
The optical microscope LEICA Q550IW is used for observing metallurgical structure and the transmission electron microscope FEI-Tecnai G220 for observing the fine structure.
The phase transformation temperature of this chemistry is about 870°C.
Physical Chemistry of the Groups IVa (Ti, Zr), Va(V,Nb,Ta) and the Rare Earth Elements in Steel[J].

Methanol to gasoline over La/HZSM-5 catalyst modified by Na2CO3 Xiaofeng Gao1,a, Chuanmin Ding 1, Weili Liu 1, Junwen Wang 1,b *, Kan Zhang 2, Ping Liu 2 1College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, 030024, china 2State Key Laboratory of Coal Conversion, Institute of Coal Chemistry of CAS, Taiyuan, 030001, China axiaofeng20080201@126.com, bwangjunwen@tyut.edu.cn Keywords: ZSM-5 zeolite , mesoporous, La impregnation, methanol to gasoline Abstract.
The Na2CO3 treatment results in formation of mesoporous structure in ZSM-5 zeolite.
N2 adsorption measurement was performed on a QUADRSORB SI material physical structure determinate.
U, Wessiccken R, Ternary mesoporous structure of ultrastable zeolite CSZ-1, Zeolite. 4 (1989) 346-349 [5] Groen J.
White, Chemistry-Zeolites and Porous Materials, Science press , Beijing, china, 2004