Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: November 2012
Authors: Yu Feng Wang, Zong Hua Wang, Fei Fei Zhang, Yan Zhi Xia, Shu Yan Yao, Jian Fei Xia
Electrocatalytic oxidation of methanol on Platinum/Graphene Hybrid modified glassy carbon electrode
JianFei Xia1,2,a, YuFeng Wang3,b, ZongHua Wang1,2,c,*, YanZhi Xia1,2,d,*, FeiFei Zhang1,2,e, Shu-yan Yao1,2,f
1Laboratory of Fiber Materials and Modern Textile, the Growing Base for State Key Laboratory, Qingdao University, China
2College of Chemical and Environmental Engineering, Qingdao University,QingDao 266071, China
3College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
axiajianfei@qdu.edu.cn, b610256316@qq.com, cwang_zonghua@yahoo.com.cn, dqduxyzh@163.com, ezhangfeifei2004204@163.com, fyaoshuyan0811@yahoo.cn
*corresponding author
Keywords: Hybrid films; graphene; Platinum; methanol; electrocatalytic oxidation
Abstract: In this article, we proposed a new platinum (Pt) nanoparticles ensemble-on-graphene (G), a new electrode material, which was rapidly prepared by microwave-assisted reduction of PtCl62- on the
Many researchers have investigated the feasibility of GH in electroanalytical chemistry as a novel electrode modified material [5,6].
The structure and morphology of the graphene and nanohybrids were characterized by JEM-2100 transmission electron microscope (JEOL Japan).
Many researchers have investigated the feasibility of GH in electroanalytical chemistry as a novel electrode modified material [5,6].
The structure and morphology of the graphene and nanohybrids were characterized by JEM-2100 transmission electron microscope (JEOL Japan).
Online since: January 2014
Authors: Jun Qian, Tao Lin Ma, Man Liu, Zi Qiang Zhu, Hong Lin He, Yi Hua Zhou
Journal of Materials Chemistry, 2010, 20(39): 8446-8453
Chemistry of materials, 1996, 8(1): 235-241
Research on preparation, structure and properties of TiO2/polythiourethane hybrid optical films with high refractive index[J].
Chemistry of materials, 1996, 8(1): 235-241
Research on preparation, structure and properties of TiO2/polythiourethane hybrid optical films with high refractive index[J].
Online since: September 2013
Authors: Stefano Podestà, Federica Pompejano, Gerolamo Stagno
Wooden Roof Structure.
The study of the roof structure of Skenduli House has been supported by a geometric and technological detailed survey of the main warping of the roofing as well as by a careful research of papers related to similar wooden structures within Greece and related to Traditional Albanian Architecture.
Finally, because it was not possible to operate a diagnostic campaign on each element of a roof structure considering the absence of a structural hierarchy of the wooden elements, we decided to operate on a representative sample of elements located in crucial parts of the structure.
Musso, Department of Civil, Chemistry and Environmental Engineering, University of Genoa, Italy (2012)
Load Bearing Structures - On site inspections for the diagnosis of timber members", Milan (2004)
The study of the roof structure of Skenduli House has been supported by a geometric and technological detailed survey of the main warping of the roofing as well as by a careful research of papers related to similar wooden structures within Greece and related to Traditional Albanian Architecture.
Finally, because it was not possible to operate a diagnostic campaign on each element of a roof structure considering the absence of a structural hierarchy of the wooden elements, we decided to operate on a representative sample of elements located in crucial parts of the structure.
Musso, Department of Civil, Chemistry and Environmental Engineering, University of Genoa, Italy (2012)
Load Bearing Structures - On site inspections for the diagnosis of timber members", Milan (2004)
Online since: November 2013
Authors: Fang Yi Deng, Yuan Fang Li, Xin She Wu
In Modulating Ferroelectric Uncooled Infrared Focal Plane Detector
Fangyi Deng 1, a, Xinshe Wu 2,b , Yuanfang Li 1,c
1 Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, School of Chemistry and Biotechnology, Yunnan University of Nationalities.Engineering Research Center of Biopolymer Functional Materials of Yunnan, Yunnan University of Nationalities.
In modulation of ferroelectric uncooled infrared focal plane detector structure design.
Each part of the structure are all flat, through the integration of the chip stack.
The entire structure shown in Figure 1. 1.
Third, do not micro-bridge structure, process difficult to reduce.
In modulation of ferroelectric uncooled infrared focal plane detector structure design.
Each part of the structure are all flat, through the integration of the chip stack.
The entire structure shown in Figure 1. 1.
Third, do not micro-bridge structure, process difficult to reduce.
Online since: September 2014
Authors: Pervaiz Habibullah
Stainless steel has austenite structure, is non magnetic and forms fine passive film of Cr (III) oxide, (Cr2O3) which prevents surface corrosion and avoids further corrosion from spreading in metal’s internal structure.
Mn and Ni stabilize austenite structure.
Mn and Ni stabilize austenite structure. 3.
A: Vacuum, Surfaces and films, Vol. 1 Issue 4 Jul. 1994, pages 2544-2548 [9] http:www.springerlink.com/content/j7572477kh0n1504/, Journal of analytical chemistry, vol. 341, numbers 5-6-springerlink [10] E.Kikuti, N.Bocchi, J.J.
Chemistry Vol. 65, issue 2, 14 July 2000.
Mn and Ni stabilize austenite structure.
Mn and Ni stabilize austenite structure. 3.
A: Vacuum, Surfaces and films, Vol. 1 Issue 4 Jul. 1994, pages 2544-2548 [9] http:www.springerlink.com/content/j7572477kh0n1504/, Journal of analytical chemistry, vol. 341, numbers 5-6-springerlink [10] E.Kikuti, N.Bocchi, J.J.
Chemistry Vol. 65, issue 2, 14 July 2000.
Online since: April 2012
Authors: Evgeny N. Selivanov, O.V. Nechvoglod, S.V. Mamyachenkov
Effect of Structure on the Electrochemical Oxidation Rate of Copper and Nickel Sulfides
O.V.
Synthesized samples were crystallized at 10 - 1000 K/sec (νcooling) to study the effect of sulfides structure on the electrochemical oxidation rates.
Methods The nickel sulfide (%: 72.1 Ni, 27.5 S) and the copper sulfide (%: 71.3 Cu, 20.8 S) were produced to study the cooling rate effect on the sulfide alloy structure by alloying metals and sulfur.
Conclusion The granulation of melts of copper and nickel sulfides and copper-nickel matte leads to the formation of dispersed structures with a phase size of 5-10 micrometers, whereas during the slow cooling the size of sulfide phases reaches 100-400 mm.
Khudyakov: Journal of Applied Chemistry № 9 (1984), p. 2118
Synthesized samples were crystallized at 10 - 1000 K/sec (νcooling) to study the effect of sulfides structure on the electrochemical oxidation rates.
Methods The nickel sulfide (%: 72.1 Ni, 27.5 S) and the copper sulfide (%: 71.3 Cu, 20.8 S) were produced to study the cooling rate effect on the sulfide alloy structure by alloying metals and sulfur.
Conclusion The granulation of melts of copper and nickel sulfides and copper-nickel matte leads to the formation of dispersed structures with a phase size of 5-10 micrometers, whereas during the slow cooling the size of sulfide phases reaches 100-400 mm.
Khudyakov: Journal of Applied Chemistry № 9 (1984), p. 2118
Online since: February 2011
Authors: Chao Dong Liu, Guo Fei Gong, Sui Lian Luo
Dihydroxypropyl-terminated Polysiloxane Modified UV Cure Water-borne Polyurethane
Sui-lian Luo1, a, Chao-dong Liu1, b, and Guo-fei Gong1, c
1School of Chemistry and Environment, South China Normal University, Guangzhou, China
aluosuilian@163.com, bliuchaodong@163.com, cggf@163.com
Keywords: Water Borne, Polyurethane, UV Cure, PDMS
Abstract:In this paper three kind of water borne polyurethane are synthesized.
FTIR identify the structure of 2-hydroxypropyl acrylate terminated water borne polyurethane with block PDMS.
But the water-resistant is worse than solvent-based PU coatings’, because we introduced some hydrophilic groups such as -COOH,-OH to the molecular structure.
Results and Discussion As a first step, let us consider the structure of Si-WPUA, which was examined using FTIR spectroscopy and the structures of WPU and Si-WPU are showed in previous paper [4].In order to remove unreacted reactants, the sample is extracted 24 h by toluene.
The structure of the Si-WPUA was confirmed by FTIR spectroscopy is shown in Fig. 1.
FTIR identify the structure of 2-hydroxypropyl acrylate terminated water borne polyurethane with block PDMS.
But the water-resistant is worse than solvent-based PU coatings’, because we introduced some hydrophilic groups such as -COOH,-OH to the molecular structure.
Results and Discussion As a first step, let us consider the structure of Si-WPUA, which was examined using FTIR spectroscopy and the structures of WPU and Si-WPU are showed in previous paper [4].In order to remove unreacted reactants, the sample is extracted 24 h by toluene.
The structure of the Si-WPUA was confirmed by FTIR spectroscopy is shown in Fig. 1.
Online since: February 2018
Authors: Mohammad Ghorbani, Hanif Mohammadi
All the anatase structure of TiO2 diffraction peaks can be found in No. 84-1286 card, rutile structure of TiO2 indexed in No. 86-0147 card, wurtzite structure of ZnO indexed in JCPDS card No.80-0075 and cubic phase of ZnTiO3 were well matched with JCPDS card No. 39-0190.
The rutile-TiO2 and the anatase-TiO2 have tetragonal structures; zinc oxide (ZnO) possesses hexagonal structure and zinc titanate (ZnTiO3) has rhombohedral and cubic structures.
Jing, S.Chen ” Controllable vertical growth onto anatase TiO2nanoparticle films of ZnO nanorod arrays and their photoluminescence and superhydrophilic characteristics” Journal of Physics and Chemistry of Solids 70 (2009) 867–873
Yaseen ” Synthesis of Yb3+ Doped TiO2Nano Particles Powder as IR Filter via Sol-Gel” Advances in Materials Physics and Chemistry, 2013, 3, 214-216
Ameen, Hanna M.Yaseen” Prepared of Nd: TiO2Nano Particles Powder as IR Filter via Sol-Gel” Advances in Materials Physics and Chemistry, 2013, 3, 174-177
The rutile-TiO2 and the anatase-TiO2 have tetragonal structures; zinc oxide (ZnO) possesses hexagonal structure and zinc titanate (ZnTiO3) has rhombohedral and cubic structures.
Jing, S.Chen ” Controllable vertical growth onto anatase TiO2nanoparticle films of ZnO nanorod arrays and their photoluminescence and superhydrophilic characteristics” Journal of Physics and Chemistry of Solids 70 (2009) 867–873
Yaseen ” Synthesis of Yb3+ Doped TiO2Nano Particles Powder as IR Filter via Sol-Gel” Advances in Materials Physics and Chemistry, 2013, 3, 214-216
Ameen, Hanna M.Yaseen” Prepared of Nd: TiO2Nano Particles Powder as IR Filter via Sol-Gel” Advances in Materials Physics and Chemistry, 2013, 3, 174-177
Online since: July 2006
Authors: Trond Furu, K.O. Pedersen
The Influence of Grain Structure and Texture on Formability and
Toughness of Extruded Aluminium Alloys
T.
Furu 1,a and K.O.Pedersen2,b 1 Hydro Aluminium, R&D Materials Technology, 6600 Sunndalsøra, Norway 2 SINTEF Materials and Chemistry, 7465 Trondheim, Norway a trond.furu@hydro.com, b ketill.o.pedersen@sintef.no Key words: Extrusion, Grain structure, Texture, Dispersoids, Formability, Toughness Abstract.
Typically for Al-extrusions is the through-thickness gradient in both grain structure and texture [1].
The 6082 and the 7108+Zr alloys have a fibrous grain structure in the center area and a recrystallised surface layer after extrusion while the other alloy variants have completely recrystallised grain structures (see Fig. 1).
A fibrous grain structure with a sharp β-fibre texture shows an anomalous behaviour when deformed in the biaxial deformation regime as compared to the same alloy possessing a recrystallised grain structure and a random texture.
Furu 1,a and K.O.Pedersen2,b 1 Hydro Aluminium, R&D Materials Technology, 6600 Sunndalsøra, Norway 2 SINTEF Materials and Chemistry, 7465 Trondheim, Norway a trond.furu@hydro.com, b ketill.o.pedersen@sintef.no Key words: Extrusion, Grain structure, Texture, Dispersoids, Formability, Toughness Abstract.
Typically for Al-extrusions is the through-thickness gradient in both grain structure and texture [1].
The 6082 and the 7108+Zr alloys have a fibrous grain structure in the center area and a recrystallised surface layer after extrusion while the other alloy variants have completely recrystallised grain structures (see Fig. 1).
A fibrous grain structure with a sharp β-fibre texture shows an anomalous behaviour when deformed in the biaxial deformation regime as compared to the same alloy possessing a recrystallised grain structure and a random texture.