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Online since: March 2016
Authors: Jian Xu, Jing Hong Ma, Jing Hua Gong, Hui Chao Liu, Yi Long Huang
Phosphate glass (Pglass) is a novel polymeric glass which is composed of chain-like or crossliked structure [11].
It indicated there was a critical value of Pglass contents to form network structure for anti-dripping.
Furthermore, the properties of anti-dripping can be attributed to the formation of the Pglass network-structured protective layer.
Brow, Properties and structure of binary tin phosphate glasses, J.
Jian, The structure and properties of SnF2–SnO–P2O5 glasses, J.
Online since: October 2010
Authors: Piotr Klimczyk
Three types: micro-, submicro- and nano-structured Si3N4-SiC composites have been obtained by High Pressure-High Temperature (HPHT) sintering.
Composites without cracks were obtained only from micro- and submicro-structured powders.
Composites obtained from the micro-sized powders have properties intermediate between the nano- and submicro-structured materials.
The investigated properties predispose submicro-structured Si3N4–70 vol.% SiC composites to application in cutting tools.
Peng, Spark Plasma Sintering of Si3N4-Based Ceramics, Doctoral Dissertation, Department of Inorganic Chemistry, Stockholm University 2004
Online since: December 2018
Authors: Zi Li Yu, Cong Li Fu, Xiu Li Wang, Xiao Feng Zhao
The Structure of FGO.
This is mainly due to the different number of layers possessed by the stacked structure of FGO [4].
The structure and dispersibility of FGO are characterized by different techniques.
Qu: Synthesis of Fluorinated and Nonfluorinated Graphene Quantum Dots through a New Top-Down Strategy for Long-Time Cellular Imaging, Chemistry-A European Journal, 2015 Feb 23, vol. 21(9), p. 3791-3797
Bielawski, et al: The chemistry of graphene oxide[J], Chemical Society Reviews, 2010, vol. 39(1), p. 228-240
Online since: July 2015
Authors: Reyhan Keskin, Guralp Ozkoc, Ikilem Göcek
The morphological structure of the multiscale composites were investigated using scanning electron microscopy (SEM) analysis.
The morphological structures of the fractured surfaces of the multiscale composites were investigated using scanning electron microscopy (SEM) method.
Spectroscopic Studies of Fullerene Aggregates: Journal of Physical Chemistry A.
Online since: September 2011
Authors: Qiang Li, Dan Yu Jiang, Qing Lv, Jie Song, Cai Xia Li
Preparation and Characterization of Nano-Films Materials Caixia Li1,a, Qing Lv1, Jie Song1, Danyu Jiang2 and Qiang Li1,b 1 Department of Chemistry, East China Normal University, Shanghai 200062, China 2 Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China a 52100606005@ecnu.cn, b qli@chem.ecnu.edu.cn Key words: nano-films materials, LBL self-assembly, Raman spectrum Abstract.
Raman spectrum are mainly used to analyze and characterize the structure of nano-films materials.
Introduction With the improvement of analysis testing technology, nano-materials have attracted more and more researchers' great interests for its remarkable physical and chemical properties and unique structure [1-6].
Online since: July 2020
Authors: Alexey V. Ishkov, Vladimir N. Malikov, Alexey A. Grigorev, Mihail A. Ryasnoi, Denis A. Fadeev
In particular, it was used to study the structure of the surface of films after passing the synthesis wave.
Ni-Al intermetallic thin film structure Figure 6.
The conducted Fourier analysis indicates the presence of periodicity in the island structure of the intermetallic film. 4.
It was found out that the island structure is a complex periodic three-mode structure with periodicity parameters of 2.136 µm, 1.553 µm and 1.005 µm respectively. 5.
Nilius, Growth of Two-dimensional Lithium Islands on CaO (001), Thin Films Journal of Physical Chemistry C. 116 (2012) 17980-17984
Online since: October 2014
Authors: Lin Jiang Wang, Xiang Li Xie, Jie Zhang
Since the interlayer anions are easily exchangeable, various types of anions (both inorganic and organic) can be included in its structure [5].
And LDO can be reconstructed to LDH structure again in metal anionic solution [8, 9].
The original hydrotalcite structure was completely regenerated by reconstruction in Na[Pb(OH)3] solution, [Pb(OH)3]-1 anion was intercalated into the interlayer of LDH and layer structure of Mg-Al LDH was recovered by reconstruction and adsorption.
The sorption mechanism of Pb(II) on the LDO was attributed to the structure reconstruction and memory effect of LDH.
Wang, Preparation and Structure Characteristics of IBU-LDH and TAU-LDH Drug Release Materials, Acta Miner.
Online since: July 2011
Authors: Qian Qian Wang, Hong Zhang, Xiao Lei Wang, Heng Xue Xiang
Study on Polyethylene Glycol Acrylate Crosslinked Gels as Phase Change Materials Hong Zhang1,a, Qian-qian Wang1,b, Heng-xue Xiang2,c and Xiao-lei Wang1,d 1 College of Chemistry and Material, Dalian Polytechnic University, Dalian, 116034, P.R.
The structure diagram of PEGA gel was shown in Fig.1.
Obviously, Fig 2(a) shows that dry gel of lightly cross-linked PEGA has the loose structure.
With the increase of cross-linker content and cross-linking density of the network, cavity radius decreased, so a dense structure was observed in the dry gel, as shown in Fig 2(b).
So crystallization ability reduced, and the spherulitic crystal structure can not be observed.
Online since: October 2010
Authors: Xiao Jun Wang, Xiao Chun Zhou
A New Red Emitting Phosphor Mg2SnO4: Eu Wang Xiaojun1, a, Zhou Xiaochun2, b 1 Key Laboratory of Numerical Control Technology of Guangdong Higher Education Institutes, Mechanical and Electronic Department of Guangdong Polytechnic Normal University; Gangzhou 510635, China 2 School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an 343009, China awxj65881010@163.com, b ncdxzxc@163.com Keywords: Mg2SnO4: Eu phosphor; Luminescence; Host matrix; Intensity ratio Abstract.
The luminescent properties of phosphors are strongly dependent on the crystal structure of host materials.
The host material of novel emitting phosphor, Mg2SnO4 has an inverse spinel structure, A (AB) O4 (A=Mg, B=Sn).
Results and Discussion XRD was used to examine the crystal structure and phase purity of the products, and the typical XRD patterns of the 0.02 mol of Mg(NO3)2 · 6H2O co-doped synthesized Mg2SnO4 : Eu samples are shown in Fig. 1.
All mainly reflections in the patterns corresponding to inverse spinel structure Mg2SnO4, and This observation indicates that the mainly phase of Mg2SnO4 was completed by the low temperature (at 740°C) solid state reaction, this may be ascribed to the synthesis of H2SnO3 and effects of low temperature solid-state reaction.
Online since: July 2011
Authors: Chang Jiu Liu, Pei Pei Li, Liang Hua Huang
Carbon nanotubes on the Performance of Al3+ doped α-nickel hydroxide Changjiu Liu1,2,a, Peipei Li1 ,Lianghua Huang1 1College of Chemistry and Bioengineering,Guilin University of Technology,Guilin 541004,China 2Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, Guilin University of Technology ,Guilin 541004, China aliuchj_1229@163.com; Keywords: α-nickel hydroxide; Al doped; Carbon nanotubes; Electrochemical performance Abstract.
Now we mainly improve by adding appropriate electric conduction. due to special structure, good electrical conductivity and chemical stability in strong alkali electrolyte and not with electrolyte or other active material of nickel positive produces chemical reaction, CNTs are considered to be ideal additives for α-nickel hydroxide electrode active materials[4].
The crystal structure of the prepared Al3+ doped α-nickel hydroxide powders with CNTs nickel hydroxide were is determined on a X-ray diffractometer, with a Cu kα radiation source (λ=0.14581nm,40.0KV,and 100Ma).The morphology of the prepared Al doped α-nickel hydroxide powders is characterized with a JSM-6380 LV scanning electron microscope(SEM).
Results and discussion The XRD pattern of Al doped α-nickel hydroxide is shown in figure 1.the diffraction peaks at 11.2°, 22.2°, 34.5° and 61.2° are all the characteristic peak of α-nickel hydroxide[5], suggesting that the prepared powder is α-nickel hydroxide material. the more acute intensity of characteristic peak of 15%Al doped α-nickel hydroxide also shown that the crystal form structure is in order. use the Bragg equation(2dsinθ=λ) calculate the d value for 15%Al doped α-nickel hydroxide.
It can be seen that the composite exhibits a layered structure at the magnifying power(×10000), this structure is in favor of permeate of the electrolyte, and then improve the chemical reaction in the process of the electrode.