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Online since: September 2018
Authors: Oleg Volokitin, Viktor A. Vlasov, Valentin Shekhovtsov, Nelly Skripnikova, Gennadii G. Volokitin
Previous research has demonstrated that when plasma flow contacts with the surface of silicate building materials, the formation of a layered structure occurs [16–18].
In [28], it is shown that there are many methods and compositions for the production of microspheres with various structures (hollow, solid).
Pogrebinskii, Processes of structure formation in plasma treatment of soils to the stage of a silicate melt, Refractories and Industrial Ceramics 41 (2000) 24–27
Hrabovský, Numerical Modelling of Wood Gasification in Thermal Plasma Reactor, Plasma Chemistry and Plasma Processing 37 (2017) 947–965
Volokitin, The technology of obtaining microspheres of various structures basis of ash and slag wastes by the plasma method, Tekhnika i tekhnologiya silikatov 24 (2017) 2–6
Online since: October 2017
Authors: Martin Boháč, Dana Kubátová
Usually in the beginning of the synthesis, a gel-like C-S-H with highly disordered structure is formed [1,2].
The pore structure of samples was investigated by mercury porosimetry.
Taylor: Cement Chemistry (Academic Press, London 1997) [6] S.Y Hong, E.P.
Chemistry and Technology, Production and Uses.
Boynton: Chemistry and Technology of Lime and Limestone (John Wiley & Sons, United States of America, 1966) [13] R.
Online since: May 2012
Authors: Chang Hua Liu, Sheng Peng Liu, Li Li Xu
Micro-structrue and Mechanical Property of Polypropylene Composites filled with Modified Attapulgite Lili Xu1, Changhua Liu2, Shengpeng Liu1, a, * 1 Wuhan Institute of Technology, Wuhan 430073, China 2College of Chemistry and Chemical Engineering, Southwest Uinversity, Chongqing 400715, China aliuabss@163.com; *Corresponding author Keywords: Polypropylene; Attapulgite; Modification; Mechanical property Abstract.
The morphology, chemical structure and mechanical properties of the composites were also investigated with scanning electron microscopy (SEM), Fourier-transform infrared spectra (FTIR) and mechanical testing.
The modified AT particles were extracted with toluene for 24 h in a Soxhlet apparatus, and then dried and pressed with KBr powder.Fourier transform infrared (FTIR) spectroscopy was applied to characterize changes in the chemical structure of modified AT particles by VERTEX 70 spectrometer (Bruker, Germany).
The chemical structure of modified AT was characterized by FTIR.
Online since: May 2013
Authors: Jia Xiu Man, Yong Jun Liu, Xu Chen, De Ying Luo, Jun Jie Li, Xu Wang, Yuan Fei Feng, Zhe Xu, Hui Xiao, Zhu Liu
It is found that all as-deposit ZnO films were Wurtzite structures with controllable surface roughness and impurities.
All ZnO films deposited at different potentials are hexagonal Wurtzite structure with (002) peak of 34.5º and (101) peak of 36.3º.
As a result, the ZnO films with uniform structure and pin hole free are important to fabricate ZnO films for the application of inverted organic solar cells.
Pauporté, Journal of Photochemistry and Photobiology A: Chemistry Vol.211 (2010), p.65
Zhang, The Journal of Physical Chemistry C Vol.111 (2007), p.7288
Online since: July 2021
Authors: Mohammad Malik Abood, Aref Saleh Baron, Osama Abdul Azeez Dakhil
(b) The cubic crystal structure of the most widely investigated perovskite MAPbI3 Adapted from [3].
It was observed to be polycrystalline with a cubic structure.
Synthesis and crystal chemistry of the hybrid perovskite (CH 3 NH 3) PbI 3 for solid-state sensitised solar cell applications. 
Journal of Materials Chemistry A, (2013). 1(18), 5628-5641
Ultrasensitive photodetectors based on island-structured CH3NH3PbI3 thin films. 
Online since: September 2018
Authors: Yurii F. Ivanov, Oleg S. Tolkachev, Pavel Moskvin, Elizaveta A. Petrikova, Olga V. Krysina, Nikolay Koval
Electron micrograph of the modified surface structure (a) and its X-ray maps for aluminum (b) and titanium (c).
Electron micrograph of the modified structure at a depth of 10–15 µm (a) and its X-ray map in Ti (Kα) radiation (b).
Such a subgrain structure is also observed at ≈200 µm.
The alloyed layer has a multiphase structure consisting of rapidly solidified submicro- and nanograins.
Denisov, Generation of low-temperature gas discharge plasma in large vacuum volumes for plasma chemical processes, Russian Journal of General Chemistry 85(5) (2015) 1326-1338, doi: 10.1134/S1070363215050485
Online since: May 2014
Authors: Zhong Guo Mu, Xue Lian Bai, Yi Ding Luo, Jian Ting Mei, Ming Hu Zhang
Comparison of IPN structure For PU/EP IPN , IR spectrum of microwave curing and thermal curing sample is shown in figure.3.
Structure comparison between microwave curing and thermal curing IPN In fig.3, Curve 1 is IR spectrum of thermal curing IPN, Curve 2 is IR spectrum of microwave curing IPN, It can be seen through comparison that corresponding absorption peaks for two IR spectrums have identical shapes, The result indicates that microwave curing and thermal curing IPN have alike structure, It proves that microwave curing doesn’t affect the structure of IPN and has the same reaction mechanism with thermal curing.
For PU and EP, Microwave curing rate of PU is more rapid, Microwave curing method doesn’t affect structure of PU/EP IPN. 3.
The properties of epoxy resin modified by IPN structure polyurethane.
Microwave chemistry.
Online since: June 2007
Authors: Kye Hong Cho, Kwang Suk You, Gi Chun Han, Hee Chan Cho, Ji Whan Ahn, Dong Yun Han
However, in the case of Cr 6+, owing to a higher affinity of sulfate anion to form ettringite than that of Cr 6+,�most of Cr 6+ did not substituted into the crystal structure of ettringite.
The channels contain four sites per formula unit of the column structure which contains six calcium atoms.[1~3] Three of these sites are occupied by SO42 and one by two H2O molecules.
Ettringite powder obtained from distilled water and a Cr 6+ solution appeared to have an ordinary column-type crystal structure.
Ettringite containing column and channel structure has advantage to stabilize heavy metal. 2.
In solution with Cr 3+, the substitution of Cr 3+ into Al site takes place in ettringite structure, and monosulfate/friedel'salt phase is also formed by occurrence of extra Al ion in solution. 3.
Online since: December 2011
Authors: Jin Qiang Liu, Chun Jie Qian, Yong Qiang Li
In order to understand the effect of laundering by detergent containing bleaches on cotton fabrics, two detergents with and without bleaches were used during laundering, and the changes in structures and properties of cotton fabrics were investigated after laundering.
The structure of the cotton before and after laundering was evaluated by the X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and field scanning electron microscopy (FSEM).
The bleaching laundering could increase the aldehyde group and change the micro-structure of the cellulose, which leading to the cotton fabric potential chemical damage.
Acknowledgements This work was financially supported by the Zhejiang public technology application research programs (2011C21042), Zhejiang Provincial Top Academic Discipline of Applied Chemistry and Eco-Dyeing & Finishing Engineering (No.ZYG2010017) and Zhejiang Provincial Key Innovation Team (No.2010R50038).
[10] Jinxin He: Color chemistry (China Textile Press, Beijing 2001).
Online since: September 2011
Authors: Ya Wei Hu, Yang Min Ma
Solvothermal Synthesis and Characterization of Two Iron Complexes Yawei Hua and Yangmin Ma Key Laboratory of Auxiliary Chemistry Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, P.
China a huyawei@sust.edu.cn Keywords: Iron complex, solvothermal synthesis, crystal structure.
Direct methods were used to solve the structures using the SHELXL crystallographic software package.
The 1D chains are linked through the two dtdb coordinating to the Fe(1) atom to structure a 2D double-layer network (Figure 2).
Hdtdb anions interact with the Fe-bpy-formed layer through the hydrogen-bond to construct a 3D supramolecular structure.