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Online since: July 2012
Authors: Ze Qiang He, Guo Rong Xu, Jie Shen, An Ping Tang
Synthesis and Characterization of LiVOPO4 Cathode Material by Solid-State Method
Anping Tang1, a, Zeqiang He2, c, Jie Shen1, b, Guorong Xu1, d
1Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan University of Science and Technology, Hunan 411201, China
2 College of Biology and Environmental Science, Jishou University, Hunan 416000, China
aanpingxt@126.com, ccsuhzq@163.com, b786300924@qq.com, dxuguorong@126.com
Key words: LiVOPO4; Lithium Ion Batteries; Solid State Method
Abstract.
X-ray diffraction patterns showed that β-LiVOPO4 has an orthorhombic structure with space group of Pnma.
X-ray diffraction patterns showed that β-LiVOPO4 has an orthorhombic structure with space group of Pnma.
Online since: September 2015
Authors: Ravi Ranjan Kumar, P.V. Venkitakrishnan, Ashish Kumar Pande, Alok Singh
The heart of any design for manufacturing system is a group of design principles or guidelines that are structured to help the designer reduce the cost and difficulty of manufacturing an item.
Messler (Jr.), Principles of Welding: Processes, Physics, Chemistry and Metallurgy, Wiley International, NY (1999)
Messler (Jr.), Principles of Welding: Processes, Physics, Chemistry and Metallurgy, Wiley International, NY (1999)
Online since: February 2012
Authors: Zhong Rong Song, Qiang Xu, Jia Hong He, Zhi Qiang Gao
An Improved Sensitivity Non-enzymatic Glucose Sensor Based on a Nano-Gold Modified Ag Electrode
He Jia-hong, Xu Qiang, GaoZhi-qiang, Song Zhong-rong*
(Chemistry and environment Engineering College, Chongqing University of Arts and sciences, Yongchuan 402168,China)
Key words: nano-gold; modified electrode; non-enzymatic sensor; glucose
Abstract: A non-enzymatic glucose sensor based on nano-gold modified Ag electrode was fabricated by two steps.
The structures and morphologies of nano-gold colloid and nano-Au modified electrode were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and UV-Vis absorption spectra.
The structures and morphologies of nano-gold colloid and nano-Au modified electrode were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and UV-Vis absorption spectra.
Online since: April 2008
Authors: Robert V. Law, Robert G. Hill, Delia S. Brauer, Daphne Seah, Natalia Karpukhina
Hill1,c
1
Imperial College, Department of Materials, Exhibition Road, London SW7 2AZ, UK
2
Imperial College, Department of Chemistry, Exhibition Road, London SW7 2AY, UK
a
d.brauer@imperial.ac.uk, b
n.karpukhina@imperial.ac.uk, c r.hill@imperial.ac.uk
Keywords: Bioactivity, Fluorine, Glass Structure, 19
F NMR, 29
Si NMR
Abstract.
In order to design fluoride-containing bioactive glasses, we need to understand the role of fluorine within the glass structure.
Glass structure can be investigated using solid state nuclear magnetic resonance (NMR).
Glass structure was analysed using 19F and 29Si MAS-NMR.
The structure of silicate glasses containing CaF2 has been discussed in literature.
In order to design fluoride-containing bioactive glasses, we need to understand the role of fluorine within the glass structure.
Glass structure can be investigated using solid state nuclear magnetic resonance (NMR).
Glass structure was analysed using 19F and 29Si MAS-NMR.
The structure of silicate glasses containing CaF2 has been discussed in literature.
Online since: May 2016
Authors: Rewadee Wongmaneerung
The XRD confirmed the formation of main phase magneplumbite and the crystalline structure of samples is still hexagonal.
It is known that the magnetization is strong function of chemistry and density of materials.
All the samples were found to have single phase M-type structure in the form of hexagonal platelet.
Padaikathan, Structure and hard magnetic properties of barium hexaferrite with and without La2O3 prepared by ball milling, J.
Zaveta, Magnetic Structure of Hexagonal Ferrites Studied by Mössbauer Spectroscopy, J.
It is known that the magnetization is strong function of chemistry and density of materials.
All the samples were found to have single phase M-type structure in the form of hexagonal platelet.
Padaikathan, Structure and hard magnetic properties of barium hexaferrite with and without La2O3 prepared by ball milling, J.
Zaveta, Magnetic Structure of Hexagonal Ferrites Studied by Mössbauer Spectroscopy, J.
Online since: May 2014
Authors: Hong Mei Zhuang, Xiao Liang Miao, Zhi Qiang Zhao, Lei Zhang
An important feature of biological minerals is a hierarchical structure.
The most important inorganic group is similar to the chemistry of hydroxyapatite (HAP), but it usually is rich in carbonate or lack of calcium, so it collectively called apatite.
Nano calcium phosphate and bone have similar composition and structure, commonly used in bone tissue engineering.
While the hierarchical structure of tooth enamel is complex, the basic structure of HAP particles is 20~40nm.
Nano HAP microspheres in air or water is stable, but after ultrasonic shell structure damage generation acicular HAP.
The most important inorganic group is similar to the chemistry of hydroxyapatite (HAP), but it usually is rich in carbonate or lack of calcium, so it collectively called apatite.
Nano calcium phosphate and bone have similar composition and structure, commonly used in bone tissue engineering.
While the hierarchical structure of tooth enamel is complex, the basic structure of HAP particles is 20~40nm.
Nano HAP microspheres in air or water is stable, but after ultrasonic shell structure damage generation acicular HAP.
Online since: September 2013
Authors: Guo Yu Zhang, Ping Wang, Wei Wang, Jia Yan Liu
The basic structure can be found in Figure 1.
The up and down sides of this sandwich structure are made of T700 carbon fiber with thickness of 1.5mm.
The four holes on the structure are strengthened by metal titanium alloy.
Titanium alloy components are embedded in four corner connecting holes of the sandwich structure.
The elevating plate with higher natural frequency indicates higher dynamic rigidity of the structure.
The up and down sides of this sandwich structure are made of T700 carbon fiber with thickness of 1.5mm.
The four holes on the structure are strengthened by metal titanium alloy.
Titanium alloy components are embedded in four corner connecting holes of the sandwich structure.
The elevating plate with higher natural frequency indicates higher dynamic rigidity of the structure.
Online since: September 2024
Authors: Bao Agula, Wu Ren, Bhnar Wurentuya
K species lead to carbon etching, producing a rich microporous structure.
It is important to use mild KAc as an activator to optimize the preparation conditions and overcome the non-porous structure caused by the complex structure of lignin.
LCH-1 has a dense carbon surface and abundant pore structure.
Pore structure parameters.
Carbon dioxide capture adsorbents: chemistry and methods, ChemSusChem, 2017, 10(7): 1303-1317.
It is important to use mild KAc as an activator to optimize the preparation conditions and overcome the non-porous structure caused by the complex structure of lignin.
LCH-1 has a dense carbon surface and abundant pore structure.
Pore structure parameters.
Carbon dioxide capture adsorbents: chemistry and methods, ChemSusChem, 2017, 10(7): 1303-1317.
Online since: June 2012
Authors: Jean Pierre Guin, Tanguy Rouxel, Remi Chassagnon, Yi Fan Niu, Frédéric Smektala, Abdesselam Abdelouas, Johann Troles
The later evolve toward a more stable hexagonal phase (trigonal) leading to the anisotropic growth of one-dimensional monocrystalline structures.
Introduction Nanostructures (e.g. nanosized spheres, wires, rods, bars, tubes, belts) are increasingly attractive because of their potential application in various technological areas (e.g. chemistry, physics, materials).
Results and discussion The GeSex glass structure has been extensively studied.
Fig. 2: SEM images of Se structures formed after reaction: (A, B) SEM observation of the particles found at the bottom of the container.
Introduction Nanostructures (e.g. nanosized spheres, wires, rods, bars, tubes, belts) are increasingly attractive because of their potential application in various technological areas (e.g. chemistry, physics, materials).
Results and discussion The GeSex glass structure has been extensively studied.
Fig. 2: SEM images of Se structures formed after reaction: (A, B) SEM observation of the particles found at the bottom of the container.
Online since: February 2007
Authors: Wei Peng, S.Y. Wang, Bo Lin Cheng, Can Wang, S.Y. Dai, Zhao Hui Chen
The crystal structure and surface morphology have been characterized
by X-ray diffraction (XRD) and atomic force microscopy, respectively.
In this work, we report a study of structures and dielectric properties of BST (x=0.7, 0.5, 0.3) films ∗ Corresponding author.
These smooth film surfaces can provide excellent adhesion with Ag top electrodes in MIM type capacitor test structures.
Choy: Materials Chemistry and Physics Vol. 75 (2002), pp. 220
In this work, we report a study of structures and dielectric properties of BST (x=0.7, 0.5, 0.3) films ∗ Corresponding author.
These smooth film surfaces can provide excellent adhesion with Ag top electrodes in MIM type capacitor test structures.
Choy: Materials Chemistry and Physics Vol. 75 (2002), pp. 220