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Online since: July 2014
Authors: Jin Shang, Huan Ke, Shu Wang Duo, Ting Zhi Liu, Hao Zhang
The ZnS film deposited for 2.5h with the radio of V(NH3·H2O)/V(N2H4)=15:15 has the cubic structure only after single deposition.
As is showed in Fig.3 (a), the ZnS thin film from solution C has one significant peak at about 2θ=29.16° which can be assigned to the (111) reflection of the sphalerite structure, while the ZnS thin films from the other two solutions have no obvious peaks.
XRD results show that ZnS film with low thickness deposited for 2.5h at the radio of V(NH3·H2O)/V(N2H4)=15:15 has the cubic structure only after single deposition, while the ZnS films deposited for 2.5h at the radio of V(NH3·H2O)/V(N2H4)=15:5 and 15:10 are amorphous.
Materials Chemistry and Physics.
Journal of Physics and Chemistry of Solids.
As is showed in Fig.3 (a), the ZnS thin film from solution C has one significant peak at about 2θ=29.16° which can be assigned to the (111) reflection of the sphalerite structure, while the ZnS thin films from the other two solutions have no obvious peaks.
XRD results show that ZnS film with low thickness deposited for 2.5h at the radio of V(NH3·H2O)/V(N2H4)=15:15 has the cubic structure only after single deposition, while the ZnS films deposited for 2.5h at the radio of V(NH3·H2O)/V(N2H4)=15:5 and 15:10 are amorphous.
Materials Chemistry and Physics.
Journal of Physics and Chemistry of Solids.
Online since: November 2011
Authors: Xi Shi Tai
Preparation and Crystal Structure Er (III) Complex with 2-Formylbenzenesulfonic sodium-3-thiosemicarbazide
Xi-Shi Tai 1, a
1 College of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, P.R.
China aemail: taixishi@lzu.edu.cn Keywords: 2-Formylbenzenesulfonic sodium; 3-Thiosemicarbazide; Er (III) complex; Crystal structure; Synthesis Abstract.
The crystal structure of the Er (III) complex was determined by X-ray single crystal diffraction.
The complex forms two-dimensional layered structure through hydrogen bonds and π-π stacking.
As part of our study on Schiff base ligands, the structure of rare earth complexes, we report herein the synthesis and crystal structure of Er (III) complexes with a new Schiff base ligand (L) derived from 2-formylbenzenesulfonic sodium and 3-thiosemicarbazide.
China aemail: taixishi@lzu.edu.cn Keywords: 2-Formylbenzenesulfonic sodium; 3-Thiosemicarbazide; Er (III) complex; Crystal structure; Synthesis Abstract.
The crystal structure of the Er (III) complex was determined by X-ray single crystal diffraction.
The complex forms two-dimensional layered structure through hydrogen bonds and π-π stacking.
As part of our study on Schiff base ligands, the structure of rare earth complexes, we report herein the synthesis and crystal structure of Er (III) complexes with a new Schiff base ligand (L) derived from 2-formylbenzenesulfonic sodium and 3-thiosemicarbazide.
Online since: January 1984
Neutrons and accelerated ions can be used to transmute constituents of
a solid sample and thus provide analytical chemical information as
well as being used as scattering probes of structure.
To this end a symposium and tutorial workshop on MODERN NUCLEAR METHODS IN MA TERIALS SCIENCE was held in Washington D.C. in conjunction with the Fall 1983 Meeting of the American Chemical Society, and which was jointly sponsored by the Division of Nuclear Chemistry and Technology and the Division of Physical Chemistry.
To this end a symposium and tutorial workshop on MODERN NUCLEAR METHODS IN MA TERIALS SCIENCE was held in Washington D.C. in conjunction with the Fall 1983 Meeting of the American Chemical Society, and which was jointly sponsored by the Division of Nuclear Chemistry and Technology and the Division of Physical Chemistry.
Online since: April 2013
Authors: Jing Li, Rui Ming Yin, Lin Zhang Chen, Qin Ling Hou, Tai Rong Liu
Research on Flotation Mechanism of Quartz
Using Magnesium ion as Activator
Ruiming Yin1, a, Linzhang Chen1, Qinglin Hou1,b, Jing Li1 and Tairong Liu1
1School of Packaging and Materials engineering, Hunan University of technology,
Zhuzhou, 412007, China
ayin_ruiming@126.com, blinzhangc@163.com(corresponding author)
Key words: quartz; SAS; magnesium ion; activation;
Abstract: This article studies on flotation of quartz using magnesium ion as activator in the system of dodecyl sulphate, studies of magnesium ion on ZETA potential of the quartz surface and the flotation recoveries of the quartz through flotation experiment, ZETA potential measurement and infrared spectroscopy and solution chemistry of magnesium calculation.
Quartz and feldspar are two common silicate minerals, their crystal structure is very similar[5].
And studied the mechanism of magnesium ions as the activator through flotation experiment, ZETA potential measurement and infrared spectroscopy and solution chemistry of magnesium calculation. 2.
FLOTATON CHEMISTRY OF QUARTZ WITH OLEAT[J].
Quartz and feldspar are two common silicate minerals, their crystal structure is very similar[5].
And studied the mechanism of magnesium ions as the activator through flotation experiment, ZETA potential measurement and infrared spectroscopy and solution chemistry of magnesium calculation. 2.
FLOTATON CHEMISTRY OF QUARTZ WITH OLEAT[J].
Online since: May 2013
Authors: Yong Zhang, Feng Juan Zhang, Li Yan Wang, Li Ting Xing, Juan Zhou, Chang Suo Li, Bei Bei Sun
From the mainstream of old channel to saline water area of interchannel belt, groundwater hydro-chemistry type by HCO3- evolves into the Cl.SO4 -Mg.Na.Ca type and Cl.SO4-Na.Mg.Ca type gradually.Thus, improving measures such as pumping saline water in non-flood season and treating water with reverse osmosis material and so on are put forward to make the saline water evolve into fresh water.
The lithology of aquifer is mainly composed by fine sand and silt with thin multilayer structure vertically.
Besides, saline water is rich in free CO2 of 48.95 mg/L,which accelerate the dissolution of halite further,resulting mean of salinity being 11883.69 mg/L.From the mainstream of old channel to saline water area of interchannel belt, the groundwater hydro-chemistry type by HCO3- evolves into the Cl.SO4 -Mg.Na.Ca type and Cl.SO4-Na.Mg.Ca type gradually,which is consistent with its changes of salinity.
From the mainstream of old channel to saline water area of interchannel belt, the groundwater hydro-chemistry type by HCO3- evolves into the Cl.SO4 -Mg.Na.Ca type and Cl.SO4-Na.Mg.Ca type gradually because of hydro-geochemistry function such as adsorption ,CEC,mineralization and so on .Salinity and total hardness is also increased .The water salinization trend is more obvious.
The lithology of aquifer is mainly composed by fine sand and silt with thin multilayer structure vertically.
Besides, saline water is rich in free CO2 of 48.95 mg/L,which accelerate the dissolution of halite further,resulting mean of salinity being 11883.69 mg/L.From the mainstream of old channel to saline water area of interchannel belt, the groundwater hydro-chemistry type by HCO3- evolves into the Cl.SO4 -Mg.Na.Ca type and Cl.SO4-Na.Mg.Ca type gradually,which is consistent with its changes of salinity.
From the mainstream of old channel to saline water area of interchannel belt, the groundwater hydro-chemistry type by HCO3- evolves into the Cl.SO4 -Mg.Na.Ca type and Cl.SO4-Na.Mg.Ca type gradually because of hydro-geochemistry function such as adsorption ,CEC,mineralization and so on .Salinity and total hardness is also increased .The water salinization trend is more obvious.
Online since: October 2015
Authors: N.A. Kalyzhnyi, V.V. Atuchin, O.P. Andreeva, I.V. Korolkov, T.A. Gavrilova, E.A. Maximovskiy
The scheelite-type structure in space group I41/a has been verified by the XRD analysis of the final powder product.
Solonin, XES, XPS and NEXAFS studies of the electronic structure of cubic MoO1.9 and H1.63MoO3 thick films, J.
Troitskaia, Morphology and structure of hexagonal MoO3 nanorods, Inorg.
Bazarova, Crystal structure of a new ternary molybdate Rb5CeZr(MoO4)6, J.
Mariathasan, High-pressure crystal chemistry of scheelite-type tungstates and molybdates, J.
Solonin, XES, XPS and NEXAFS studies of the electronic structure of cubic MoO1.9 and H1.63MoO3 thick films, J.
Troitskaia, Morphology and structure of hexagonal MoO3 nanorods, Inorg.
Bazarova, Crystal structure of a new ternary molybdate Rb5CeZr(MoO4)6, J.
Mariathasan, High-pressure crystal chemistry of scheelite-type tungstates and molybdates, J.
Online since: January 2025
Authors: Ganjar Fadillah, Febi Indah Fajarwati, Rahmat Hidayat
The recycling of waste includes in twelve of green chemistry principal, not only “use renewable stock” but also “pollution prevention”.
The formation mechanism of 3D graphene includes the formation of amorphous carbon nanospheres, structuring of monolithic carbon structure, wrinkled graphene, and finally the organization of 3D graphene [20].
XRD can reveal the crystal structure of GQDs, illustrating how carbon atoms are arranged in a hexagonal lattice.
Changes in the diffractogram reveal that the carbon structure is altered and undergoes rearrangement.
Another significant aspect of TEM lies in its ability to uncover defects and edge structures in GQDs.
The formation mechanism of 3D graphene includes the formation of amorphous carbon nanospheres, structuring of monolithic carbon structure, wrinkled graphene, and finally the organization of 3D graphene [20].
XRD can reveal the crystal structure of GQDs, illustrating how carbon atoms are arranged in a hexagonal lattice.
Changes in the diffractogram reveal that the carbon structure is altered and undergoes rearrangement.
Another significant aspect of TEM lies in its ability to uncover defects and edge structures in GQDs.
Online since: November 2013
Authors: Meng Meng Zhang, Hong Xia Yan, Chao Gong, Yi Chen Feng
Hyperbranched Polysiloxane Functionalized Graphene Oxide via Polyhydrosilylation
Mengmeng Zhanga, Hongxia Yan*b, Chao Gongc, Yichen Fengd
Department of Applied Chemistry, School of Science, Northwestern Polytechnical University, Xi’An, Shaanxi, 710129, P.R.
The changes in GO surface morphology, chemistry and physical conditions at different stages are characterized by Fourier-transform infrared spectra (FT-IR), X-ray photoelectron spectroscopy (XPS) and Transmission electron microscopy (TEM).
Similarly, Yu and Dai [7] have modified graphene with poly(ethyleneimine) obtaining a water-soluble product that was subsequently assembled with acid-treated carbon nanotube to form hybrid carbon films with interconnected carbon structures of well-defined nanoscale pores.
Compared to the linear polymers, hyperbranched polymers are special kinds of polymers with highly branched structure, they have good solubility, low melt viscosity, and extremely high density of functional groups, so they can be utilized advantageously as surface modifiers [9].
Among reported hyperbranched polymers so far, hyperbranched polysiloxanes are beginning to attract interests as new organic inorganic hybrid materials because they combine the unique chemical structure of polysiloxane and hyperbranched topology structure, and thus possesses low viscosity, high reactivity and excellent thermal properties [12].
The changes in GO surface morphology, chemistry and physical conditions at different stages are characterized by Fourier-transform infrared spectra (FT-IR), X-ray photoelectron spectroscopy (XPS) and Transmission electron microscopy (TEM).
Similarly, Yu and Dai [7] have modified graphene with poly(ethyleneimine) obtaining a water-soluble product that was subsequently assembled with acid-treated carbon nanotube to form hybrid carbon films with interconnected carbon structures of well-defined nanoscale pores.
Compared to the linear polymers, hyperbranched polymers are special kinds of polymers with highly branched structure, they have good solubility, low melt viscosity, and extremely high density of functional groups, so they can be utilized advantageously as surface modifiers [9].
Among reported hyperbranched polymers so far, hyperbranched polysiloxanes are beginning to attract interests as new organic inorganic hybrid materials because they combine the unique chemical structure of polysiloxane and hyperbranched topology structure, and thus possesses low viscosity, high reactivity and excellent thermal properties [12].
Online since: February 2026
Authors: Taghreed N. Jamil, Adnan F. Hassan, Ali Hani Kareem, Narimann Neamah Hussein, Tabarek Falah Deindee, Abrar Taha, Lamyaa F. A. Al-Barram
Chemical Structure of Triglyceride [18].
Structure of Oleic Acid [20].
Journal of Physics and Chemistry of Solids, 2024, 112156
Food Chemistry, 2024, 459: 140208
Textbook of Veterinary Physiological Chemistry. 2015: p. 345-350
Structure of Oleic Acid [20].
Journal of Physics and Chemistry of Solids, 2024, 112156
Food Chemistry, 2024, 459: 140208
Textbook of Veterinary Physiological Chemistry. 2015: p. 345-350
Online since: May 2014
Authors: Huan Mei Guo, Yu Feng Li, Yun Chen Zhang
In the moleculer structure,the phenyl ring and the two pyridine rings are almost perpendicular , and two pyridine rings are closed to coplane.
The structure of the title compound was solved by direct methods and refined by full-matrix least-squares techniques on F2 using the SHELXTL[12] software package.
Description of the crystal structure.
The molecular structure of the title compound consists of discrete [C21 H17 F N2 O2] entities.All of the bond lengths and bond angles in the molecular structure of the title compound are in the normal ranges.
Basnet et al. , European Journal of Medicinal Chemistry, 43(4) (2008)675
The structure of the title compound was solved by direct methods and refined by full-matrix least-squares techniques on F2 using the SHELXTL[12] software package.
Description of the crystal structure.
The molecular structure of the title compound consists of discrete [C21 H17 F N2 O2] entities.All of the bond lengths and bond angles in the molecular structure of the title compound are in the normal ranges.
Basnet et al. , European Journal of Medicinal Chemistry, 43(4) (2008)675