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Online since: December 2010
Authors: Yan Lin Song, Hai Hua Zhou
Green Plate Making Technology based on Nano-Materials
Zhou Haihuaa, Song Yanlinb
Laboratory of New Materials, Institute of Chemistry, Chinese Academy of Sciences,
China.
The image process of the technology is to jet the nano-composite transfer printing material on super hydrophilic print plate with special nano and micro-structure.
The print plate was treated by anodizing to form micro and nano-structure.
Through measuring the water contact angle the surface energy of the coated nano-structure substrate can be controlled.
By controlling the coating materials and the surface structure, the surface energy of the plate could be changed, i.e., the water contact angle was controlled(Fig. 4).
The image process of the technology is to jet the nano-composite transfer printing material on super hydrophilic print plate with special nano and micro-structure.
The print plate was treated by anodizing to form micro and nano-structure.
Through measuring the water contact angle the surface energy of the coated nano-structure substrate can be controlled.
By controlling the coating materials and the surface structure, the surface energy of the plate could be changed, i.e., the water contact angle was controlled(Fig. 4).
Online since: July 2012
Authors: Li Zhang, Xiu Li Lu, Shu Chao Chen, Hong Sheng Liu, Bing Gao, Yong Zhang
The model was taken into the subsequent MD simulation for initial structure.
The molecular structure of DEM Molecular Dynamics Simulations.
Change of the Secondary Structure of Keap1 Before and After Simulation.
Timothy Mulcahy: The Journal of Biological Chemistry. vol. 277 (2002), p. 36544-36552 [11] Lu X., Chen S., Zhang Y., et al: 2011 international conference on remote sensing, environment and transportation engineering (RSETE 2011).
P., Rosemary, B., et al: Journal of Computational Chemistry. vol. 26 (2005), p. 1781-1802 [14] W.
The molecular structure of DEM Molecular Dynamics Simulations.
Change of the Secondary Structure of Keap1 Before and After Simulation.
Timothy Mulcahy: The Journal of Biological Chemistry. vol. 277 (2002), p. 36544-36552 [11] Lu X., Chen S., Zhang Y., et al: 2011 international conference on remote sensing, environment and transportation engineering (RSETE 2011).
P., Rosemary, B., et al: Journal of Computational Chemistry. vol. 26 (2005), p. 1781-1802 [14] W.
Online since: February 2018
Authors: Aija Krumina, Māra Lubāne, Vera Serga, Dmitry Zablotsky, Gundega Heidemane
Phase Composition and Morphology of Tungsten Oxide Nanoparticles Produced via a Pyrolytic Process
Vera Serga1,a, Dmitry Zablotsky2,b*, Aija Krumina1,c, Mara Lubane1,d,
Gundega Heidemane1,e
1Institute of Inorganic Chemistry, Riga Technical University, P.
We have shown that the conditions of thermal treatment of the W-based precursor determine the crystalline structure and nanomorphology of the final product.
Hence, under the given conditions of thermal treatment (Т = 450 °С, annealed for 30 min) the transition from tetragonal to monoclinic structure was incomplete.
The thermal treatment at 700 °С produced slightly elongated round-shaped particles of approx. 40 nm resulting in a fully developed triplet structure in the XRD pattern of sample S4 (Fig. 1, right).
Sokolova, Analytic chemistry of tungsten.
We have shown that the conditions of thermal treatment of the W-based precursor determine the crystalline structure and nanomorphology of the final product.
Hence, under the given conditions of thermal treatment (Т = 450 °С, annealed for 30 min) the transition from tetragonal to monoclinic structure was incomplete.
The thermal treatment at 700 °С produced slightly elongated round-shaped particles of approx. 40 nm resulting in a fully developed triplet structure in the XRD pattern of sample S4 (Fig. 1, right).
Sokolova, Analytic chemistry of tungsten.
Online since: August 2013
Authors: Rui Ping Zheng, Hui Yuan Chen, Jun Jie He, He Ping Zeng
Synthesis, Structures and Properties of Two New Three-dimensional Ce(III) Coordination Polymers with 2,2'-bipyridine-4,4'-dicarboxylic Acid
Ruiping Zheng 1, a, Huiyuan Chen2, b, Junjie He 3, c, and Heping Zeng 4, d
1,2,3,4School of Chemistry and Chemical Engineering,
South China University of Technology ,Guangzhou, 510641, China
a995364661@qq.com, b812314686@qq.com, c402350221@qq.com, dhpzeng@scut.edu.cn
Keywords: crystal structure, Ce(III) coordination polymer, bipyridine dicarboxylic acid
Abstract.
Structure Determination.
Structures, Cryst.
Program for the Solution of Crystal Structure.
Program for the Refinement of Crystal Structure.
Structure Determination.
Structures, Cryst.
Program for the Solution of Crystal Structure.
Program for the Refinement of Crystal Structure.
Online since: October 2013
Authors: Gu Qin Wang, Yang Cui
And the resistivity and structure of composite particles were determined by four-probe method and FTIR.
CNT has been a research hotspot in the fields of chemistry and material science due to its many unique performances such as, superior mechanical properties, good optical properties, large specific surface area and excellent adsorption properties [1-4].
CNT has a fiber-like structure, a perfect conductivity and a large aspect ratio.
Its structure is just like that of fibers.
CNT has been a research hotspot in the fields of chemistry and material science due to its many unique performances such as, superior mechanical properties, good optical properties, large specific surface area and excellent adsorption properties [1-4].
CNT has a fiber-like structure, a perfect conductivity and a large aspect ratio.
Its structure is just like that of fibers.
Online since: December 2012
Authors: Guo Lei Zhang, Xiao Dong Xu, Xiu Min Gao
The X-ray diffraction (XRD) patterns indicated that the crystal structure was monoclinic.
The advantages of RTILs for materials chemistry and especially for the synthesis of novel nanostructures have been recently realized [2].
The crystal structures of products were characterized by XRD (Rigaku D/Max-TTR III) with Cu Ka radiation (λ=0.15406 nm).
The diffraction peaks of Sample A can be indexed to the monoclinic structure of ZrO2 with lattice constants of a=0.5313nm, b=0.5213nm, c=0.5147nm and β=99.222° (JCPDS 37-1484).
The advantages of RTILs for materials chemistry and especially for the synthesis of novel nanostructures have been recently realized [2].
The crystal structures of products were characterized by XRD (Rigaku D/Max-TTR III) with Cu Ka radiation (λ=0.15406 nm).
The diffraction peaks of Sample A can be indexed to the monoclinic structure of ZrO2 with lattice constants of a=0.5313nm, b=0.5213nm, c=0.5147nm and β=99.222° (JCPDS 37-1484).
Online since: August 2013
Authors: Ming Li, Er Jun Kan
Ferromagnetism Switched by Hydrogenation in Layered MoS2
Erjun Kan1,a, Ming Li1
1Key Laboratory of Soft Chemistry and Functional Materials (Ministry of Education), and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P.
Ordered spin structure in two-dimensional materials is critical to the use of such materials in spintronics.
However, there are no practical ways to realize ordered spin structures in 2D TMD.
Figure 1 (a) Top and side views of geometric structure of layered MoS2, the dash lines mean the unit cell.
The plotted spin density (a) and the spin-polarized band structures (b) of FHL.
Ordered spin structure in two-dimensional materials is critical to the use of such materials in spintronics.
However, there are no practical ways to realize ordered spin structures in 2D TMD.
Figure 1 (a) Top and side views of geometric structure of layered MoS2, the dash lines mean the unit cell.
The plotted spin density (a) and the spin-polarized band structures (b) of FHL.
Online since: January 2013
Authors: Ping Zhou, Jing Hong Du
Gelcasting combined the traditional ceramic technology with polymer chemistry.
The morphology structure of green bodies was observed by scanning electron microscopy (Philips XL30ESEM-TMP).
Because the distance among particles will reduce and green body have more compact structure as solid content of slurry increase, which make green body’s shrinkage change a little after drying.
Not only complex shaped products can be prepared through consolidation in-situ of organic compounds in gecasting process, but also green body with high strength can be obtained by the role of three-dimensional network structure of polymer formed by organic monomer.
It can be observed that different green bodies had different structure.
The morphology structure of green bodies was observed by scanning electron microscopy (Philips XL30ESEM-TMP).
Because the distance among particles will reduce and green body have more compact structure as solid content of slurry increase, which make green body’s shrinkage change a little after drying.
Not only complex shaped products can be prepared through consolidation in-situ of organic compounds in gecasting process, but also green body with high strength can be obtained by the role of three-dimensional network structure of polymer formed by organic monomer.
It can be observed that different green bodies had different structure.
Online since: February 2008
Authors: Jing Sun, Na Zhang, Min Zhang, Jia Lin Yu, Qiang Li
Study On the Opening and Modifying of MWNTs
Na Zhang1, a, Jing Sun
2, Min Zhang
1, Jialin Yu
1 and Qiang Li1, b
1
Department of Chemistry, East China Normal University, Shang hai 200062, China.
2
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shang hai 200050, China.
The surface structure of MWNTs treated by different processes is analyzed by FT-IR.
Introduction There has been a great deal of interest in carbon nanotubes (CNTs) because of their peculiar one- dimensional tubular structures consisting of rolled up grapheme sheets with a nanoscale diameter and a variety of electronic structures [1] since their discovery [2] and bulk [3] synthesis.
The surface structure is analyzed by FT-IR.
The surface structure of MWNTs treated by different processes is analyzed by FT-IR.
Introduction There has been a great deal of interest in carbon nanotubes (CNTs) because of their peculiar one- dimensional tubular structures consisting of rolled up grapheme sheets with a nanoscale diameter and a variety of electronic structures [1] since their discovery [2] and bulk [3] synthesis.
The surface structure is analyzed by FT-IR.
Online since: May 2006
Authors: Joaquim M. Vieira, J. Legendziewicz, Pedro B. Tavares, Vitor S. Amaral, Fábio Figueiras, M.E. Guzik
The effects of Ca and Mn Excess Co-doping in CMR Manganites Solid
Solution Structures
F.
Amaral 1,3,f 1 CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal 2 Departamento de Engenharia Cerâmica e do Vidro, 3810-193 Aveiro, Portugal 3 Departamento de Física, Universidade de Aveiro, 3810-193 Aveiro, Portugal 4 Faculty of Chemistry, University of Wroclaw, 14 Joliot-Curie, 50-383 Wroclaw, Poland 5 Centro de Química - Dep. de Química, Universidade de Trás-os-Montes e Alto Douro, 5001-911 Vila Real, Portugal a ffigueiras@cv.ua.pt , b jvieira@cv.ua.pt , c mguzik@cv.ua.pt , e ptavares@utad.pt , famaral@fis.ua.pt Keywords: Manganites, solid solution, vacancies, crystalline structures Abstract.
Ca-doping introduces stability in the perovskite structure and broadens the domain for phase formation reaction.
The perovskite structure is not properly described by the chemical formula LaMnO3+δ with δ>0, as oxygen excess cannot be incorporated into the structure [2].
The changes of cell structure by the effect A site vacancies (ØA), Ca, δ and Mn4+ show different trends.
Amaral 1,3,f 1 CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal 2 Departamento de Engenharia Cerâmica e do Vidro, 3810-193 Aveiro, Portugal 3 Departamento de Física, Universidade de Aveiro, 3810-193 Aveiro, Portugal 4 Faculty of Chemistry, University of Wroclaw, 14 Joliot-Curie, 50-383 Wroclaw, Poland 5 Centro de Química - Dep. de Química, Universidade de Trás-os-Montes e Alto Douro, 5001-911 Vila Real, Portugal a ffigueiras@cv.ua.pt , b jvieira@cv.ua.pt , c mguzik@cv.ua.pt , e ptavares@utad.pt , famaral@fis.ua.pt Keywords: Manganites, solid solution, vacancies, crystalline structures Abstract.
Ca-doping introduces stability in the perovskite structure and broadens the domain for phase formation reaction.
The perovskite structure is not properly described by the chemical formula LaMnO3+δ with δ>0, as oxygen excess cannot be incorporated into the structure [2].
The changes of cell structure by the effect A site vacancies (ØA), Ca, δ and Mn4+ show different trends.