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Online since: August 2009
Authors: Yue Zhang, Yun Hua Huang, Jian Wang, Hui Feng Li
Fabrication and Optical Properties of Mn-doped ZnO Nanowires Jian Wang1, a, Huifeng Li1,b, Yunhua Huang2,c ,Yue Zhang1,2,d 1 State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China 2 Department of Materials Physics and Chemistry, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China a wangjianflysky@yahoo.com.cn, blhf9898@yahoo.cn, chuangyh@mater.ustb.edu.cn, d yuezhand@mater.ustb.edu.cn Keywords: ZnO; nanowires; Optical properties Abstract.
The X-ray diffraction (XRD) pattern indicates that the Mn-doped ZnO nanowires are hexagonal wurtzite structure and no second phase.
The morphologies and structures of the synthesized product were characterized using X-ray powder diffraction (XRD) (Rigaku DMAX-RB, Japan), scanning electron microscopy (SEM) (JEOL-6490, Japan), transmission electron microscopy (TEM) (JEOL-2010, Japan), and X-ray photoelectron spectrum (XPS) (Microlab MKⅡ).
The nanowires have the wurtzite structure and no second phase was found.
Online since: February 2012
Authors: Feng Xiu Zhang, Gang Xian Zhang, Da Yang Wu, Zhong Li She
Modifing PET fabric surface with peanut protein Guangxian Zhang1,a, Zhongli She1,b, Fengxiu Zhang2,c, Dayang Wu1,d 1 College of textile and garment, Southwest University, Chongqing, China 2 School of chemistry and chemical engineering, Southwest University, Chongqing, China azgx656472@sina.com, b182490750@qq.com, dzhangfx656472@sina.com, Wdy1484@swu.edu.cn Keywords: PET; Peanut protein; Modification; Grafting Abstract: The poly(ethyleneteraphthalate)(PET) fabric was semi-encased sucrose ester at high pressure and high temperature to endue it enough –OH, and then the PET fabric was modified with peanut protein through crosslinkage.
The FT-IR spectra showed the peanut protein was grafted on PET fabric, the X-ray diffraction spectra showed the structure of grafting peanut protein was random coin, and DSC thermograms showed the thermostability of PET fabric grafted peanut protein kept very well.
Results and discussion Structure.
This showed the structure of grafting peanut protein mainly was random coin.
Online since: August 2011
Authors: Jian Jiao, Pan Bo Liu, Liang Zou, Guang Li Wu
Preparation and Properties of Nanocomposites Consist of Carbon Black N220 and Epoxy Resin Jian Jiao1, a, Panbo Liu1, b, Liang Zou1, c and Guangli Wu1, d 1Department of Applied Chemistry, Northwestern Polytechnical University, Shaanxi, Xi’an, 710072, China ajjiao@nwpu.edu.cn, bliupanbo@sina.com, czou27509445@163.com, d2010201844@nwpu.edu.cn Keywords: Nano-carbon Black, Epoxy Resin, Nanocomposites, High Performance Abstract.
The structure of CB N220 and its dispersion in epoxy resin were analyzed by TEM and tensile fracture surface of the composites was analyzed by SEM.
At the same time, the phase structure of CB N220 in epoxy resin and the fracture surface of the composites will be analyzed.
Morphologies analysis of CB N220 and its effect on the system reactivity Structure, surface roughness, functional groups of particle surface of CB N220 will influence its physical and mechanical properties.
Online since: November 2012
Authors: Yu Ping Zhu, Hai Hong Wu, Shi Xing Zhang
After plastically deformed at 450˚C, the hardness keeps on increasing, and the grains are equiaxed polygon structure.
According to Figure 4 and Figure 5, after plastically deformed at 450˚C, the hardness keeps on increasing, and the grains are equiaxed polygon structure.
(2) The hardness keeps on increasing, and the grains are equiaxed polygon structure after deformed above recrystallization temperature
[2] Wang Qunjiao: Nonferrous metal heat treatment technology, Chemistry Industry Publishing Press in Chinese
Online since: April 2023
Authors: Daleel Saad Abdul-Zahra, Toshit Jain, Jinesh Kumar Jain
CNTs are very advantageous for biological and chemical biosensors due to their distinctive structure and nanoscale size.
Nikolaisen, "Investigation of Fiber Distribution in Concrete Batches Discharged from Ready-Mix Truck," International Journal of Concrete Structures and Materials, vol. 8, no. 4, pp. 279-287, 2014, doi: 10.1007/s40069-014-0083-2
Thompson, "The effect of interfacial chemistry on molecular mobility and morphology of multiwalled carbon nanotubes epoxy nanocomposite," Polymer, vol. 48, no. 19, pp. 5662-5670, 2007, doi: 10.1016/j.polymer.2007.06.073
Galiotis, "Carbon nanotube–polymer composites: Chemistry, processing, mechanical and electrical properties," Prog.
Karger-Kocsis, "Epoxy Polymers New Materials and Innovations," Macromolecular Chemistry and Physics, vol. 211, no. 16, pp. 1836-1836, 2010, doi: 10.1002/macp.201000278
Online since: February 2016
Authors: Syeed Zeeshaan Fathima, Altaf Hussain Pandith
Their structures are well defined and crystalline in nature.
In addition, many dyes are difficult to degrade due to their complex aromatic structure and they tend to persist in the environment and create serious quality and public health problems.
Acknowledgement We are thankful to the Head, Department of Chemistry, University of Kashmir, for providing the necessary laboratory facility for carrying out this work.
Review on composite cation exchanger as interdisciplinary materials in analytical chemistry, Int.
Preparation, characterization and structure of α-zirconium hydrogen phosphate hemihydrates, J.
Online since: January 2018
Authors: Larry Q. Reyes
Morphology and Structure of Amino Fatty Acid Intercalated Montmorillonite Larry Q.
Reyes1,a 1School of Chemical Engineering and Chemistry, Mapua University, Manila, Philippines alqreyes03@gmail.com Keywords: Surfactant, Clay, Montmorillonite, Organo-clay, Composites.
The amino fatty acid chain were considered to be arranged into a flat monolayer structure at low surfactant loading, while they form a bilayered to a pseudotrilayered structure at high surfactant loading.
Structure and dimensions of 12-ALA Intercalation and conformation of 12-ALA in MMT.
Xu, “Structure of cetyltrimethylammonium intercalated hydrobiotite,” Appl.
Online since: January 2011
Authors: Oliver Weichold
Advanced Coatings to Improve the Durability in Continuous Glass-Fibre Reinforced Concrete Oliver Weichold DWI an der RWTH Aachen e.V. and Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, 52074 Aachen, Germany weichold@dwi.rwth-aachen.de Keywords: Reinforced concrete, polymer coating, glass fibres, durability, ageing.
The reason is that by changing the polymer chemistry from hydrophilic and water soluble (PVA) to hydrophobic, water repelling, but alkali soluble (PVAc), the rate by which water diffuses into the coating formulation can be altered.
The chemical structures of the two polymers are given in Figure. 4.
Poly(vinyl acetate), PVAc Poly(vinyl alcohol), PVA Figure 4: Chemical structures of poly(vinyl acetate), PVAc, and poly(vinyl alcohol), PVA, used to prepare the reactive dispersions under investigation.
The result is silica-encapsulated clinker grains with core-shell structure and the protective function of PEOS being partially lost.
Online since: November 2014
Authors: K. Gross, Elina Rozite
Another strategy uses a cue from nature to produce calcium phosphate - the use of an amorphous phase intermediate with the required chemistry.
Since the apatite structure is similar to the TTCP structure [7], the fastest means to determine complete transformation is take the ratio of the most intense TTCP peak with the peak at 31.9o, that will be more intense if apatite is present, from the major apatite peak at 31.8o.
The Faculty of Chemistry at Uni of Latvia provided access to X-ray diffraction and Fourier transform infra-red spectroscopy.
Tetracalcium phosphate: Crystal structure and relationship to Ca5(PO4)3)OH and K3Na(SO4)2.
Online since: February 2015
Authors: E. Mohandas, S.K. Sinha, U. Jha, S. Murugesan, D.C. Kothari, M. Shahid, D. Shikha
Kothari4 1Department of Applied Chemistry, BIT Mesra, Ranchi 835215, India 2Department of Applied Physics, BIT Mesra, Ranchi 835215, India 3Indira Gandhi Centre for Atomic Research, Kalpakkam-603102, Tamilnadu, India 4Department of Physics, University of Mumbai, Santacruz (E), Mumbai 400098, India * Corresponding author: Dr.
Deep Shikha, Assistant Professor, Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi – 835215, Jharkhand, India, Tel.: +91 651 2275444/896, 09955989189 (cell) Fax: +91 651 2275401, E-mail: deepshikha1011@gmail.com, deepshikha@bitmesra.ac.in Key words: biomaterials, alumina, hydroxyapatite (HAP), sol-gel.
A number of novel methods have been proposed for HAP ceramic coating offering the potential for better control of film structure.
The ν1 and ν3 phosphate bands in the region of 900-1200 cm-1 and ν4 absorption bands in the region of 500-700 cm-1 are used to characterized apatite structure.
The granules like structure on the surface and uniformity of the film may be playing role for the marked improvement in the corrosion resistance.