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Online since: October 2006
Authors: Marcin Wolter, Jerzy Lis, Jolanta Gilewicz-Wolter, Zbigniew Żurek, Martah Homa, J Dudala
Mickiewicza 30, 30 - 059 Kraków, Poland
2
Institute of Inorganic Chemistry and Technology, Cracow University of Technology
Warszawska str. 24, 31 - 155 Kraków, Poland
3
The Faculty of Materials Science and Ceramics, AGH University of Science and Technology
Al.
Structures of the spinels were examined by X-ray spectrometry.
At low oxygen activities the inversion of defect structure is observed: the dominant defects are interstitial ions and electrons. 2Oa 2Oa Conclusions 1.
Structures of the spinels were examined by X-ray spectrometry.
At low oxygen activities the inversion of defect structure is observed: the dominant defects are interstitial ions and electrons. 2Oa 2Oa Conclusions 1.
Online since: September 2008
Authors: Tao Yu Wan, George STYLIOS
Magnetite particles
with an average diameter of 20-40 nm were obtained homogeneously within the matrix because of
the tridimensional structure and chelating capacities of PVA.
However, the efficacy in many applications depends on the particle nature and size distribution besides the polymer/nanoparticle morphology and surface chemistry [13,14].
The resulting PVA- magnetite Fe3O4 composite In the manufacturing process, the concentration of the PVA solution and the casting process temperature have a great impact on the resulting PVA- Fe3O4 magnetite composite structure.
However, the efficacy in many applications depends on the particle nature and size distribution besides the polymer/nanoparticle morphology and surface chemistry [13,14].
The resulting PVA- magnetite Fe3O4 composite In the manufacturing process, the concentration of the PVA solution and the casting process temperature have a great impact on the resulting PVA- Fe3O4 magnetite composite structure.
Online since: April 2021
Authors: Andrey N. Dmitriev, Galina Yu. Vitkina, Roman V. Alektorov, Elena A. Vyaznikova
Features of the phase structure of the iron ore raw materials containing titan and vanadium are discussed.
The phase composition and crystalline structure of the sample were determined from X-ray diffraction data using the DIFFRACplus software package: EVA and the ICDD PDF4 data-base.
Petukhov, The physicochemical bases of the pyrometallurgical processing of the titanomagnetite ores, Pure and Applied Chemistry. 89, 10 (2017) 1543-1551
The phase composition and crystalline structure of the sample were determined from X-ray diffraction data using the DIFFRACplus software package: EVA and the ICDD PDF4 data-base.
Petukhov, The physicochemical bases of the pyrometallurgical processing of the titanomagnetite ores, Pure and Applied Chemistry. 89, 10 (2017) 1543-1551
Online since: May 2015
Authors: Hassane Oudadesse, Salha Boulila, Bertrand Lefeuvre, Khansa Chaabouni, Pascal Pellen, Hafedh El Feki, Allal Barroug, Fatima Makni-Ayedi, Abdelfattah El Feki
Physico-chemical techniques (ICP-OES and SEM) were engaged to highlight the influence of antibiotic on the structure, porosity and bioactivity of a porous Glass-PVA before and after implantation.
The BG(M)-PVA has a porous structure (Fig. 4(a)) not only supports the growth of new cells and tissue but also beneficial to the exchange of nutrients and metabolic substances [7].
El Feki, Comparison of three types of physical aspects of a carbonated hydroxyapatite biomaterial: Study implantaion in vivo in rats of "Wistar" strain and physiological & physicochemical explorations, Journal of Advances in Chemistry. 8 (2014) 1612-1629
The BG(M)-PVA has a porous structure (Fig. 4(a)) not only supports the growth of new cells and tissue but also beneficial to the exchange of nutrients and metabolic substances [7].
El Feki, Comparison of three types of physical aspects of a carbonated hydroxyapatite biomaterial: Study implantaion in vivo in rats of "Wistar" strain and physiological & physicochemical explorations, Journal of Advances in Chemistry. 8 (2014) 1612-1629
Online since: October 2015
Authors: Igor Medveď, Jurij Avsec
Calculation of thermodynamic properties in solid-liquid, solid-gas and liquid-gas region
Jurij Avsec1, a *, Igor Medved’2, 3, b
1Faculty of Energy Technology, University of Maribor, 8270 Krško, Slovenia
2Department of Physics, Constantine the Philosopher University, 949 74 Nitra, Slovakia
3Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Thakurova 7, 166 29 Prague, Czech Republic
ajurij.avsec@um.si, bimedved@ukf.sk
*corresponding author
Keywords: Statistical thermodynamics, solid-liquid, liquid-gas, thermal conductivity, viscosity.
These correlations use acentric factor, dimensionless dipole moment and an empirically determined association parameters to characterize molecular structure effect of polyatomic molecules.
These correlations use acentric factor w, dimesionless dipole moment mr and an empirically determined association parameters to characterize molecular structure effect of polyatomic molecules k, the polar effect and the hydrogen bonding effect.
These correlations use acentric factor, dimensionless dipole moment and an empirically determined association parameters to characterize molecular structure effect of polyatomic molecules.
These correlations use acentric factor w, dimesionless dipole moment mr and an empirically determined association parameters to characterize molecular structure effect of polyatomic molecules k, the polar effect and the hydrogen bonding effect.
Online since: March 2015
Authors: Jian Hui Zhang, Xiu E Ren, Xiao Dan Lv, Qi Dan Chen
Towards an Atomic-scale Understanding of the Adsorbate-driven Formation of High-index Faces
Xiue Rena, Jianhui Zhang, Xiaodan lv, Qidan Chen
Department of chemistry and pharmacy, Zhuhai college of Jilin university, Zhuhai, Guangdong, 519041, P.R.
China aEmail: ren20407182@163.com Keywords: high index faces; step configuration; crystal structure; crystallography Abstract.
Three-dimensional view of KDP crystal structure and the morphology evolution of KDP crystals with different concentration of Fe3+ ions (ppm mol/100ml H2O) and supersaturation s.
No other peaks of impurities were detected, which indicates that the doped samples retain the KDP tetragonal structure for all dopant concentrations confirming the crystals to be free from any secondary phase due to the presence of Fe3+ ions.
The step geometries relationship between crystal faces is presented to illustrate the compatibility of the adsorption theory with the crystal structure.
China aEmail: ren20407182@163.com Keywords: high index faces; step configuration; crystal structure; crystallography Abstract.
Three-dimensional view of KDP crystal structure and the morphology evolution of KDP crystals with different concentration of Fe3+ ions (ppm mol/100ml H2O) and supersaturation s.
No other peaks of impurities were detected, which indicates that the doped samples retain the KDP tetragonal structure for all dopant concentrations confirming the crystals to be free from any secondary phase due to the presence of Fe3+ ions.
The step geometries relationship between crystal faces is presented to illustrate the compatibility of the adsorption theory with the crystal structure.
Online since: November 2025
Authors: Edgar Clyde R. Lopez
In the context of host-guest chemistry, docking helps determine how a guest molecule fits within the host cavity, providing valuable insights into binding strength and compatibility.
The experimental crystal structure of the cyclodextrin metal-organic framework (CD-MOF) was obtained from the Cambridge Crystallographic Structure Database (CCSD No. 773709).
The calculated adsorption energies offer quantitative insight into the relative binding strengths of each component within the CD-MOF structure.
Conversely, β-phellandrene displayed the weakest binding affinity, indicating a less favorable interaction with the host structure.
Deep, Cyclodextrin-metal–organic framework (CD-MOF): From synthesis to applications, Journal of Industrial and Engineering Chemistry. 72 (2019) 50–66. https://doi.org/10.1016/j.jiec.2018.12.048
The experimental crystal structure of the cyclodextrin metal-organic framework (CD-MOF) was obtained from the Cambridge Crystallographic Structure Database (CCSD No. 773709).
The calculated adsorption energies offer quantitative insight into the relative binding strengths of each component within the CD-MOF structure.
Conversely, β-phellandrene displayed the weakest binding affinity, indicating a less favorable interaction with the host structure.
Deep, Cyclodextrin-metal–organic framework (CD-MOF): From synthesis to applications, Journal of Industrial and Engineering Chemistry. 72 (2019) 50–66. https://doi.org/10.1016/j.jiec.2018.12.048
Online since: March 2019
Authors: Jigmeddorj Vanchinkhuu, Baasandorj Bat-Erdene, Erdene Bayanjargal, Orgilsaikhan Gerelmaa
The structure of the products was studied by SEM and SEM EDX analysis.
They have two main structures.
All of them have a layered structure.
Linear structures formed in this way tend to have many walls.
Acknowledgement This work is supported by the Department of Physics, Division of Science, NUM, Mongolia and the Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials at Inner Mongolia Normal University, China.
They have two main structures.
All of them have a layered structure.
Linear structures formed in this way tend to have many walls.
Acknowledgement This work is supported by the Department of Physics, Division of Science, NUM, Mongolia and the Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials at Inner Mongolia Normal University, China.
Online since: June 2008
Authors: Yeon Wook Kim
The
surface structure of oxidized implants exhibited nanometer-sized pores with an average diameter of
0.2 µm.
To improve the bone bonding ability of titanium implants, many attempts have been made to modify the structure, composition and chemistry of the titanium surface.
To improve the bone bonding ability of titanium implants, many attempts have been made to modify the structure, composition and chemistry of the titanium surface.
Online since: June 2015
Authors: R. Zakaria, K. Nazir, A.F. Aziz, A.M.M. Ali, Muhd Zu Azhan Yahya, Siti Fadzilah Ayub
FTIR analysis showed that the interactions between lithium ions and oxygen atoms occur at the carbonyl functional group C=O where there is shifting in wavenumber from 1728 cm-1 of pure blend to lower wavenumber of blended MG30-PEMA on the MMA structure in both MG30 and PEMA.
In addition C=C at isoprene structure of MG30 has affected the flexibility and elastomeric properties of the polymer electrolyte when applied to the electrochemical application devices.
Wang, S.Dong, “Plasticizer effect on the ionic conductivity of PEO-based polymer electrolyte” Materials Chemistry and Physics, Vol 74, pp. 98-103, 2002
In addition C=C at isoprene structure of MG30 has affected the flexibility and elastomeric properties of the polymer electrolyte when applied to the electrochemical application devices.
Wang, S.Dong, “Plasticizer effect on the ionic conductivity of PEO-based polymer electrolyte” Materials Chemistry and Physics, Vol 74, pp. 98-103, 2002