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Online since: March 2017
Authors: Krzysztof Jan Kurzydlowski, Tomasz Wejrzanowski, Jarosław Milewski, Karol Cwieka
This can only be achieved by defining the relationships between structure and properties of materials for MCFC.
Ho, Density-functional calculations of the conversion of methane to methanol on platinum-decorated sheets of graphene oxide, Physical Chemistry Chemical Physics 17 Vol. (2015), p. 26191–26197
Kurzydlowski, Structure of foams modeled by Laguerre-Voronoi tesselations, Computational Materials Science Vol. 67 (2013), p. 216-221
Lim, Effect of gas-phase transport in molten carbonate fuel cell, Journal of Electroanalytical Chemistry Vol. 540 (2003), p. 169–188
Ho, Density-functional calculations of the conversion of methane to methanol on platinum-decorated sheets of graphene oxide, Physical Chemistry Chemical Physics 17 Vol. (2015), p. 26191–26197
Kurzydlowski, Structure of foams modeled by Laguerre-Voronoi tesselations, Computational Materials Science Vol. 67 (2013), p. 216-221
Lim, Effect of gas-phase transport in molten carbonate fuel cell, Journal of Electroanalytical Chemistry Vol. 540 (2003), p. 169–188
Online since: May 2015
Authors: Li Ju Tan, Jiang Tao Wang, Fang Fang Li
Biological Effect of Single Wall Carbon Nanotubes on Skeletonema costatum and Prorocentrum donghaiense in seawaters
Fangfang Li1,a, Jiangtao Wang1,b and Liju Tan1,c
1 Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, PR China
1 lifangfyc@163.com
2jtwang@ouc.edu.cn (corresponding author)Tel.:+86-0532-66782506
3lijutan@ouc.edu.cn
Keywords: single-walled carbon nanotubes; Skeletonema costatum; Prorocentrum donghaiense; biological effect
Abstract: Carbon nanotubes (CNTs) have been used in a variety of industrial areas as a kinds of new nanometer materials.
SWNTs, which have a larger surface area, may lead to damage to cell structure, dysfunction and even necrosis because of theirs unique surface chemistry and electrical transport properties[14].
Both core structure and surface chemistry influence theirs toxicity[15].
We thank the College of Chemistry and Chemical Engineering of Ocean University of China, who provided the S. costatum and P. donghaiense strains and made the laboratory available for us.
Core Structure and Surface Functionalization of Carbon Nanomaterials Alter Impacts to Daphnid Mortality, Reproduction, and Growth: Acute Assays Do Not Predict Chronic Exposure ImpactsEnviron.
SWNTs, which have a larger surface area, may lead to damage to cell structure, dysfunction and even necrosis because of theirs unique surface chemistry and electrical transport properties[14].
Both core structure and surface chemistry influence theirs toxicity[15].
We thank the College of Chemistry and Chemical Engineering of Ocean University of China, who provided the S. costatum and P. donghaiense strains and made the laboratory available for us.
Core Structure and Surface Functionalization of Carbon Nanomaterials Alter Impacts to Daphnid Mortality, Reproduction, and Growth: Acute Assays Do Not Predict Chronic Exposure ImpactsEnviron.
Online since: October 2017
Authors: Rungsima Yeetsorn, Narumol Kreua-Ongarjnukool, Komthep Silpcharu, Arnupab Kritanusorn, Costas Tzoganakis
PU is a preferable candidate for the IPN technique, since PU chemistry allows variations in chemical composition to change bulk morphologies [7].
The polysiloxane and interpenetrating PU links structured during this reaction led to the formation of final inorganic networks [14].
Oksman, Polylactic acid/polyurethane blend reinforced with cellulose nanocrystals with semi-interpenetrating polymer network (S-IPN) structure, European Polymer Journal, 86 (2017), 188-199
Oksman, Polylactic acid/polyurethane blend reinforced with cellulose nanocrystals with semi-interpenetrating polymer network (S-IPN) structure, European Polymer Journal, 86 (2017), 188-199
Raju, Synthesis and characterization of hyperbranched polyurethane hybrids using tetraethoxysilane (TEOS) as Cross-Linker, Industrial and Engineering Chemistry Research, 47 (2008), 9214-9224
The polysiloxane and interpenetrating PU links structured during this reaction led to the formation of final inorganic networks [14].
Oksman, Polylactic acid/polyurethane blend reinforced with cellulose nanocrystals with semi-interpenetrating polymer network (S-IPN) structure, European Polymer Journal, 86 (2017), 188-199
Oksman, Polylactic acid/polyurethane blend reinforced with cellulose nanocrystals with semi-interpenetrating polymer network (S-IPN) structure, European Polymer Journal, 86 (2017), 188-199
Raju, Synthesis and characterization of hyperbranched polyurethane hybrids using tetraethoxysilane (TEOS) as Cross-Linker, Industrial and Engineering Chemistry Research, 47 (2008), 9214-9224
Online since: March 2014
Authors: Lin Fang Su, Ai Feng Zhang, Xiao Liang
The bottom of the wave tank is concrete structure with the installation of wave maker at the head and the concrete structure at dissipation zone at the end, and with the steel structure in the intermediate test section and 15 millimeters thick glass on both sides.
Fig.1 Diagram of system structure The part of PC and motion control: Soft controller of Softlogix, motion control card, PC.
The overall structure design.Main program of VC includes five functional modules, as shown in Fig.3.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)
Fig.1 Diagram of system structure The part of PC and motion control: Soft controller of Softlogix, motion control card, PC.
The overall structure design.Main program of VC includes five functional modules, as shown in Fig.3.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)
Online since: April 2015
Authors: Sutarno Sutarno, Sri Juari Santosa, Maya Rahmayanti
Magnetite has an inverse spinel structure, which contains iron cations in mixed oxidation states with Fe3+ (Fe2+ Fe3+)O4 formula.
A SEM (JEOL type JED-2300) was used to examine the morphological structure of the samples.
The strong and board absorption band centered at 563,21 cm-1 corresponds to the Fe-O bonds in the spinel structure of Fe3O4.
All of the observed diffraction peaks are indexed as the cubic structure of Fe3O4 (JCPDS no. 19-629).
The morphological structure of gallic acid-modified magnetite which was synthesized by the two-step reaction looked similar to morphological structure of magnetite before modification, but for gallic acid-modified magnetite which was obtained by one-step reaction, the morphological structure indicated gallic acid coating magnetite particles.
A SEM (JEOL type JED-2300) was used to examine the morphological structure of the samples.
The strong and board absorption band centered at 563,21 cm-1 corresponds to the Fe-O bonds in the spinel structure of Fe3O4.
All of the observed diffraction peaks are indexed as the cubic structure of Fe3O4 (JCPDS no. 19-629).
The morphological structure of gallic acid-modified magnetite which was synthesized by the two-step reaction looked similar to morphological structure of magnetite before modification, but for gallic acid-modified magnetite which was obtained by one-step reaction, the morphological structure indicated gallic acid coating magnetite particles.
Online since: January 2013
Authors: Jie Chang, Ai Li Ma, Cheng Qian Li, Wu Qing Du
Synthesis of novel carbon spheres and study on graphitization process
MA Aili 1,2,a, LI Chengqian1,b ,DU Wuqing2,c, CHANG Jie1,d*
1 Pulp and Paper Engineering State Key Laboratory, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, People’s Republic of China;
2College of Chemistry and Materials, Zhuhai Campus of Beijing Institute of Technology, Zhuhai 519085, China
amaaili1129@163.com, b405174152@qq.com, c253561081@qq.com, d*changjie@scut.edu.cn
Key words: carbon spheres; microwave plasma; Raman
Abstract: In this paper, carbon spheres were synthesized by CVD method.
The discoveries of fullerenes and their elongated cousins the carbon nanotubes have resulted in exciting further developments in carbonaceous structure science and technology[2].
Carbon nanotubes are perhaps the most striking example that embodies unique molecular size, shape and structure [4].
In particular, the above results have important meanings to profound study on its structure and production mechanism.
The carbon spheres not only have perfect shape but also ideal structure.
The discoveries of fullerenes and their elongated cousins the carbon nanotubes have resulted in exciting further developments in carbonaceous structure science and technology[2].
Carbon nanotubes are perhaps the most striking example that embodies unique molecular size, shape and structure [4].
In particular, the above results have important meanings to profound study on its structure and production mechanism.
The carbon spheres not only have perfect shape but also ideal structure.
Online since: October 2011
Authors: Xiao Chun Dai, Jian Huo
Numerical Simulation on Flow Structure of a Steam-jet Pump Influenced by Primary Nozzle Geometries
Dai Xiao-chun 1, a and Huo Jian2, b
1Liaoning University Of Technology, Liaoning Jinzhou 121001, China;
2 Jinzhou Petrochemical Co.Ltd., Liaoning Jinzhou 121001, China
aemail : dxiaoch@163.com, bemail: huo-jian3003@sohu.com
Keywords: steam-jet pump; primary nozzle; flow structure; FLUENT
Abstract.
The aim of the paper is to reveal the flow structure and the mixing process of a steam-jet pump by using a computational fluid dynamics code FLUENT.
Introduction A steam-jet pump is one of the fluid-machineries widely used in the industries which using steam as working power such as textile, papermaking, chemistry, thermoelectricity, refrigeration and so on.
As above, the flow structure in a steam-jet pump is difficult to be described by traditional methods[2].
The multi-block technique is applied to the complex geometries of the ejector wall as well as the use of regular block-structure element.
The aim of the paper is to reveal the flow structure and the mixing process of a steam-jet pump by using a computational fluid dynamics code FLUENT.
Introduction A steam-jet pump is one of the fluid-machineries widely used in the industries which using steam as working power such as textile, papermaking, chemistry, thermoelectricity, refrigeration and so on.
As above, the flow structure in a steam-jet pump is difficult to be described by traditional methods[2].
The multi-block technique is applied to the complex geometries of the ejector wall as well as the use of regular block-structure element.
Online since: April 2013
Authors: Leonid Vasylechko, Olena Kuz, Yurii Prots
Phase and Crystal Structure Behaviour of Bi1-xRxFeO3 (R = Er, Tm, Yb)
O.
Using the atomic positions in b-BiFeO3 structure reported in [15], the crystal structure parameters of the high-temperature modifications of Bi0.95Er0.05FeO3 and Bi0.95Tm0.05FeO3 structures were refined in space group Pbnm.
Sterianou, Crystal chemistry and domain structure of rare-earth doped BiFeO3 ceramics, J.
Dernier, The crystal chemistry of the rare earth orthoferrites, Acta Cryst.
Hewat, BiFeO3 crystal structure at low temperatures, Acta Phys.
Using the atomic positions in b-BiFeO3 structure reported in [15], the crystal structure parameters of the high-temperature modifications of Bi0.95Er0.05FeO3 and Bi0.95Tm0.05FeO3 structures were refined in space group Pbnm.
Sterianou, Crystal chemistry and domain structure of rare-earth doped BiFeO3 ceramics, J.
Dernier, The crystal chemistry of the rare earth orthoferrites, Acta Cryst.
Hewat, BiFeO3 crystal structure at low temperatures, Acta Phys.
Online since: September 2024
Authors: Blessie A. Basilia, Charito T. Aranilla, Marianito T. Margarito, Vivian U. Lagura, Jo Ann C. Sy, Carlo S. Emolaga
FTIR, DSC and TGA results showed no significant changes in the chemical structure and thermal properties of the 3D printed methacrylate-based resin after subjecting to gamma irradiation.
The FTIR spectra of both the unirradiated and irradiated specimens showed no clear differences in the chemical composition and structure of the specimens as shown in Fig. 3).
The FTIR, DSC and TGA measurements, however, showed no clear difference in the structure and thermograms between the irradiated and unirradiated specimens.
Radiation Physics and Chemistry 168. 108577 [6] Bikas, H. et. al., 2015.
Radiation Physics and Chemistry 141: 131–137 [11] Nguyen, JF et al (2019).
The FTIR spectra of both the unirradiated and irradiated specimens showed no clear differences in the chemical composition and structure of the specimens as shown in Fig. 3).
The FTIR, DSC and TGA measurements, however, showed no clear difference in the structure and thermograms between the irradiated and unirradiated specimens.
Radiation Physics and Chemistry 168. 108577 [6] Bikas, H. et. al., 2015.
Radiation Physics and Chemistry 141: 131–137 [11] Nguyen, JF et al (2019).
Online since: August 2013
Authors: Chu Yang Tang, Sheng Chun Wang
XRD is useful for characterizing crystalline structure of carbon materials such as polycrystalline graphite structure; however, biomass semi-cokes are highly disordered carbonaceous materials that have a short-range order poly-crystalline structure [14].
The pore structure parameters of SC and AC are listed in Table 1.
There are complex physical and chemistry reactions when the flue gas go through the fixed-bed in the surface of SC and AC.
The pore-structures of AC and SC can catch the NO molecule and Hg atom from flue gas.
Journal of Fuel Chemistry and Technology 2011:39(5)385-389
The pore structure parameters of SC and AC are listed in Table 1.
There are complex physical and chemistry reactions when the flue gas go through the fixed-bed in the surface of SC and AC.
The pore-structures of AC and SC can catch the NO molecule and Hg atom from flue gas.
Journal of Fuel Chemistry and Technology 2011:39(5)385-389