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Online since: June 2014
Authors: Juan Chen
The porous structure of the silica supportcould enhance the catalytic activity and performance ofiron-containing materials[87].
Clay minerals have commonness of ion-substitution in their structures, which make them convenient as loader for iron ions.
The chemistry and physical properties of the heterogeneous Fentoncatalyst,suchasthe surface area, crystal structure, microstructure, porosity and others affect, play a vital role in the Fenton oxidation degradation process of someorganicchemicalsmaterials.
Hydrothermal crystallization also shows some benefits over other non-conventional processes of subtle chemistry, such as ion exchange, sol-gel and coprecipitation[132, 133].
Yang: Journal of Physical Chemistry C, 116 (2012) 3623-3634
Clay minerals have commonness of ion-substitution in their structures, which make them convenient as loader for iron ions.
The chemistry and physical properties of the heterogeneous Fentoncatalyst,suchasthe surface area, crystal structure, microstructure, porosity and others affect, play a vital role in the Fenton oxidation degradation process of someorganicchemicalsmaterials.
Hydrothermal crystallization also shows some benefits over other non-conventional processes of subtle chemistry, such as ion exchange, sol-gel and coprecipitation[132, 133].
Yang: Journal of Physical Chemistry C, 116 (2012) 3623-3634
Online since: May 2016
Authors: Hui Min Meng, Mei Hui Yu, Ying Xue
In this work, modified nano-mesh structured Mn-based oxide electrode material and the supercapacitors are researched.
The results of field emission scanning electron microscope show that conducting polymer film can form porous structure on Mn-based oxide electrode, this special structure is beneficial to the improvement of specific surface area, so that the specific capacitance can be increased.
Experimental The modified surface nano-mesh structured Mn-based oxide electrode material is made by following steps.
Fig. 3 (b) shows the granular-structured discontinuous PTs film, in which tiny granular structure film can be seen on the Mn-based oxide substrate, and this three-dimensional structure can enlarge the specific surface.
Co2SnO4/activated carbon composite electrode for supercapacitor, Materials Chemistry and Physics, 2012,137( 2):576-579
The results of field emission scanning electron microscope show that conducting polymer film can form porous structure on Mn-based oxide electrode, this special structure is beneficial to the improvement of specific surface area, so that the specific capacitance can be increased.
Experimental The modified surface nano-mesh structured Mn-based oxide electrode material is made by following steps.
Fig. 3 (b) shows the granular-structured discontinuous PTs film, in which tiny granular structure film can be seen on the Mn-based oxide substrate, and this three-dimensional structure can enlarge the specific surface.
Co2SnO4/activated carbon composite electrode for supercapacitor, Materials Chemistry and Physics, 2012,137( 2):576-579
Online since: April 2011
Authors: Lucjan Swadźba, Grzegorz Moskal, Bartosz Witala
This article presents a study and results concerning the characteristics of selected thermal properties of the powders intended for deposition of gradient structure layers of the TBC type.
Detailed tests of chemical composition, phase composition and micro-structure of powders are presented in items [12, 13].
In the case of powder of a new type, a phase type Gd2Zr2O7 of structure type pyrochlores, was a basic phase component.
Sleight: in Handbook on the Physics and Chemistry of Rare Earths, ed.
Subramanian et al.: Progress in Solid State Chemistry Vol. 15 (1983), p. 55
Detailed tests of chemical composition, phase composition and micro-structure of powders are presented in items [12, 13].
In the case of powder of a new type, a phase type Gd2Zr2O7 of structure type pyrochlores, was a basic phase component.
Sleight: in Handbook on the Physics and Chemistry of Rare Earths, ed.
Subramanian et al.: Progress in Solid State Chemistry Vol. 15 (1983), p. 55
Online since: June 2011
Authors: Xiao Xiang Wang, Song Xiao Hui
Microstructural observation has found that the crack expanded through the α beaming and mainly are perpendicular to the α orientation in the lamellar structure which annealed in α+β phase zone.
For the Widmanstaten structure, which can be obtained from annealing in single β phase zone, the continuous grain boundary α phase and α beaming boundary hinder the crack expanding significantly.
Ti-6Al-2Zr-2V-1.5Mo ELI alloy is a newly developed middle-strength high damage tolerance alloy for aircraft structure application.
Table 1 Chemistry (wt.%) and beta transus of Ti-6Al-2Zr-2V-1.5Mo Eli alloy Beta transus Ti A1 V Zr Mo Fe Si C N O 960-970˚C Balance 6.17 2.00 1.99 1.75 0.04 <0.04 0.01 0.01 0.06 Rectangular specimens for fracture toughness KIC and fatigue crack growth rate testing were cut from the annealed sample.
For the laminated α structure which can be obtained through α+β dual zone double annealing, the crack is basically perpendicular to orientation of α laminate and pass through α.
For the Widmanstaten structure, which can be obtained from annealing in single β phase zone, the continuous grain boundary α phase and α beaming boundary hinder the crack expanding significantly.
Ti-6Al-2Zr-2V-1.5Mo ELI alloy is a newly developed middle-strength high damage tolerance alloy for aircraft structure application.
Table 1 Chemistry (wt.%) and beta transus of Ti-6Al-2Zr-2V-1.5Mo Eli alloy Beta transus Ti A1 V Zr Mo Fe Si C N O 960-970˚C Balance 6.17 2.00 1.99 1.75 0.04 <0.04 0.01 0.01 0.06 Rectangular specimens for fracture toughness KIC and fatigue crack growth rate testing were cut from the annealed sample.
For the laminated α structure which can be obtained through α+β dual zone double annealing, the crack is basically perpendicular to orientation of α laminate and pass through α.
Online since: September 2006
Authors: Hiroaki Imai, Junko Yahiro
The presence of phosphate ions
induced an open cellular structures consisting of zinc oxide nanosheets.
We have fabricated wurzite-type ZnO films with prismatic nanorods and a cellular structure consisting of specific nanosheets.
Meanwhile, a mosaic structure was produced at pH 10.0 (Fig. 2b) with the presence of two anionic groups of the dye molecules.
Especially, a cellular structure consisting of nanosheets was formed by a strong influence of phosphate.
A mosaic structure with branching of the hexagonal rods was achieved with phenolphthalein at an intermediate pH condition.
We have fabricated wurzite-type ZnO films with prismatic nanorods and a cellular structure consisting of specific nanosheets.
Meanwhile, a mosaic structure was produced at pH 10.0 (Fig. 2b) with the presence of two anionic groups of the dye molecules.
Especially, a cellular structure consisting of nanosheets was formed by a strong influence of phosphate.
A mosaic structure with branching of the hexagonal rods was achieved with phenolphthalein at an intermediate pH condition.
Online since: September 2013
Authors: Yu Mei Li, Qiang Li, Ying Zi Liu, Yan Hong Qu, Ting Ting Liu, Yu Xia Zheng, Zhi Wen Zhao, Sheng Han, Dong Xue Song
M503
Yumei Li 1, Qiang Li 1, a, Sheng Han 2, Dongxue Song 1, Yanhong Qu 2,
Tingting Liu 1, Yuxia Zheng 1, Yingzi Liu 3, Zhiwen Zhao3
1School of Medicine and Life Sciences, University of Jinan, Jinan, China
2School of Chemistry and Chemical Engineering, University of Jinan, Jinan, China
3Department of Criminal science and Technology, Shandong Police College, Jinan, China
alq_ujn@126.com
Keywords: low molecular weight, β-(1,3)-D-glucan, curdlan synthase
Abstract.
The second structure analysis indicated it was composed of 43.12% α-helix, 17.89% β-sheet, and 38.99% random coil structure.
A B Fig. 3 Transmembrance analysis of CrdSAg (A, CBS TMHMM; B, EMBnet TMpred) Second structure prediction CrdSAg second structure prediction was performed by PBIL-IBCP Lyon-Gerland PREDATOR (http://npsa-pbil.ibcp.fr/cgi-bin/npsa).
The results showed CrdS contained 43.12% α-helix, 17.89% β-sheet, and 38.99% random coil structure (Figure 4).
The second structure analysis indicated it was composed of 43.12% α-helix, 17.89% β-sheet, and 38.99% random coil structure.
The second structure analysis indicated it was composed of 43.12% α-helix, 17.89% β-sheet, and 38.99% random coil structure.
A B Fig. 3 Transmembrance analysis of CrdSAg (A, CBS TMHMM; B, EMBnet TMpred) Second structure prediction CrdSAg second structure prediction was performed by PBIL-IBCP Lyon-Gerland PREDATOR (http://npsa-pbil.ibcp.fr/cgi-bin/npsa).
The results showed CrdS contained 43.12% α-helix, 17.89% β-sheet, and 38.99% random coil structure (Figure 4).
The second structure analysis indicated it was composed of 43.12% α-helix, 17.89% β-sheet, and 38.99% random coil structure.
Online since: February 2011
Authors: Ti Feng Jiao, Jing Xin Zhou, Wei Wang, Yuan Yuan Xing
UV and IR data confirmed commonly the formation of imide group as well as aromatic segment in molecular structures.
The difference of thermal stability is mainly attributed to the formation of imide group and aromatic substituent groups in molecular structure.
The introduction of different aromatic substituted groups into the present functional compounds can lead to larger conjugated structures and new properties are expected.
Chemical structures and abbreviations of luminol and derivatives.
The difference of thermal stability is mainly attributed to the formation of imide group and aromatic substituted groups in molecular structure.
The difference of thermal stability is mainly attributed to the formation of imide group and aromatic substituent groups in molecular structure.
The introduction of different aromatic substituted groups into the present functional compounds can lead to larger conjugated structures and new properties are expected.
Chemical structures and abbreviations of luminol and derivatives.
The difference of thermal stability is mainly attributed to the formation of imide group and aromatic substituted groups in molecular structure.
Online since: January 2009
Authors: Ai Wen Wu, Gregg Cornner, Vinay Prabhaker
It is important that the chemistry of the solution remains
uniform during the copper plating process to ensure repeatable performance.
Figure 2 is a schematic representation of the way particles are retained on symmetric and asymmetric structures.
Figure 3 shows SEM crosssections of the two different filter structures.
The rated pressure drop of the asymmetric filter is about 70% that of the symmetric filter due to the optimized asymmetric pore structure.
Figure 2: SEM cross-sections of the two different filter structures.
Figure 2 is a schematic representation of the way particles are retained on symmetric and asymmetric structures.
Figure 3 shows SEM crosssections of the two different filter structures.
The rated pressure drop of the asymmetric filter is about 70% that of the symmetric filter due to the optimized asymmetric pore structure.
Figure 2: SEM cross-sections of the two different filter structures.
Online since: March 2012
Authors: Krzysztof Pielichowski, Agnieszka Leszczyńska
The Mechanical and Thermal
Properties of Polyoxymethylene (POM)/Organically Modified Montmorillonite (OMMT) Engineering Nanocomposites Modified with Thermoplastic Polyurethane (TPU) Compatibilizer
LESZCZYŃSKA Agnieszkaa, PIELICHOWSKI Krzysztof b
Cracow University of Technology
Department of Chemistry and Technology of Polymers
ul.
In this work the effect of macromolecular polyurethane compatibilizer on the structure, mechanical and thermal properties of polyoxymethylene/organically modified montmorillonite (POM/OMMT) nanocomposites was investigated.
Both chemical and physical mechanisms of stabilization are referred to the structure and interfacial area developed in nanocomposite materials and thus can be influenced by addition of a compatibilizer.
The best performance was observed for samples with ammonium surfactant incorporating two long alkyl chains due to highly ordered structure of obtained nanocomposites.
The nucleating activity of OMMT and orientation of polymer crystals forced by anisotropic structure of layered silicate induced a formation of complex “core-shell” crystalline morphology that contributed to the mechanical enhancement of material.
In this work the effect of macromolecular polyurethane compatibilizer on the structure, mechanical and thermal properties of polyoxymethylene/organically modified montmorillonite (POM/OMMT) nanocomposites was investigated.
Both chemical and physical mechanisms of stabilization are referred to the structure and interfacial area developed in nanocomposite materials and thus can be influenced by addition of a compatibilizer.
The best performance was observed for samples with ammonium surfactant incorporating two long alkyl chains due to highly ordered structure of obtained nanocomposites.
The nucleating activity of OMMT and orientation of polymer crystals forced by anisotropic structure of layered silicate induced a formation of complex “core-shell” crystalline morphology that contributed to the mechanical enhancement of material.
Online since: April 2018
Authors: Genene Tessema Mola, M. Maaza, Xolani G. Mbuyise, Saheed O. Oseni, Wiseman M. Dlamini, Elhadi A.A. Arbab, Patrick Tonui, Kavi Kaviyarasu
Therefore, bi-layer structure guarantees directional photo-induced charge transfer across the interface.
Fig. 10(b): The chemical structure of the host solvent which most widely used.
Fig. 11: The chemical structure of some common solvent additives.
Journal of Materials Chemistry, 22(3), (2012) 1206-1211.
Journal of Materials Chemistry A, 3 (25), (2015) 13533-13539.
Fig. 10(b): The chemical structure of the host solvent which most widely used.
Fig. 11: The chemical structure of some common solvent additives.
Journal of Materials Chemistry, 22(3), (2012) 1206-1211.
Journal of Materials Chemistry A, 3 (25), (2015) 13533-13539.