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Online since: August 2014
Authors: Hui Suo, Sa Lv, Guo Long Liu, Xiao Tian Yang, Jia Tong Wei
Semiconductor materials’ resistivity range span, withstand the current restrictions, excessive current will damage the structure of material.
In order not to affect the structure of gas-sensitive material and precise measure the resistance, ratio method is applied in this paper.
However, most of the programmable powers supply whose D/A conversion is the current output type, it makes the system structure complicated.
T: Journal of Combinatorial Chemistry.
In order not to affect the structure of gas-sensitive material and precise measure the resistance, ratio method is applied in this paper.
However, most of the programmable powers supply whose D/A conversion is the current output type, it makes the system structure complicated.
T: Journal of Combinatorial Chemistry.
Online since: January 2014
Authors: Si Si Liu, Tang You Sun, Wen Ning Zhao, Xing Hui Wu, Zhi Chao Ma, Xue Ming Zhang, Jian He, Cun Hua Chen, Zhi Mou Xu
SERS-active Ag decorated polymer nanorod substrate fabricated by the combination of photochemical reduction and nanoimprint technology
Sisi Liu1, Zhimou Xu1,a, Tangyou Sun1, Wenning Zhao1, Xinghui Wu1, Zhichao Ma1, Xueming Zhang1, Jian He1, and Cunhua Chen2,b
1 School of Optical and Electronic Information, Huazhong University of Science and Technology, 430074, Wuhan, People’s Republic of China
2 Chemistry Department, Huazhong Normal University, 430081, Wuhan, People’s Republic of China
aEmail: xuzhimou@mail.hust.edu.cn.
It shows that the ADPNs array is two-dimensional (2D) triangular lattice structure with an average diameter of 300 nm and an inter-rod distance around 150 nm.
Raman spectroscopy reveals the vibration hyperfine structures that are suitable for sensitive technique to investigate surface adsorbates.
SERS enhancements via periodic arrays of gold nanoparticles on silver film structures.
It shows that the ADPNs array is two-dimensional (2D) triangular lattice structure with an average diameter of 300 nm and an inter-rod distance around 150 nm.
Raman spectroscopy reveals the vibration hyperfine structures that are suitable for sensitive technique to investigate surface adsorbates.
SERS enhancements via periodic arrays of gold nanoparticles on silver film structures.
Online since: June 2020
Authors: Pāvels Rodionovs, Jānis Grabis
ZnO Photocatalysts Modified with Eu2O3 and Sm2O3
Pavels Rodionovs1,a* and Janis Grabis1,b
1Riga Technical University, Institute of Inorganic Chemistry, Riga, Latvia
apavels.rodionovs@rtu.lv, bjanis.grabis@rtu.lv
Keywords: ZnO, Eu2O3, Sm2O3, microwave, hydrothermal, photocatalysis.
All intensive peaks correspond to a hexagonal ZnO structure (PDF 00-036- 1451) with 2θ angle values of 31.726°, 34.378° and 36.186º.
Flower-like structures can be seen.
SEM micrographs of typical ZnO structure prepared via microwave-assisted hydrothermal method.
All intensive peaks correspond to a hexagonal ZnO structure (PDF 00-036- 1451) with 2θ angle values of 31.726°, 34.378° and 36.186º.
Flower-like structures can be seen.
SEM micrographs of typical ZnO structure prepared via microwave-assisted hydrothermal method.
Online since: November 2016
Authors: Paweena Prapainainar, Noppawan Pattanapisutkun, Paisan Kongkachuichay, Chaiwat Prapainainar
Synthesis and Characterization of Silaned-Graphene
Oxide-Mordenite Grafting
Noppawan Pattanapisutkun1,a, Chaiwat Prapainainar2,b,
Paisan Kongkachuicay1,3c and Paweena Prapainainar1,3d*
1National Center of Excellence for Petroleum, Petrochemicals and Advance Material, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
2Department of Chemical Engineering, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand
3Department of Chemistry and NANOTEC Center for Nanoscale Materials Design for Green Nanotechnology, Kasetsart University, Bangkok 10900, Thailand
anoppawan.p@ku.th, bchaiwat.r@eng.kmutnb.ac.th, cfengpsk@ku.ac.th, dfengpwn@ku.ac.th
*Corresponding author.
The broad peak at 3600 cm-1 and a peak at 1637 cm-1 were ascribed to the O-H stretching and bending vibrations of water molecules, respectively, representing trapped water in the zeolite structure [10].
The weight loss at 500-800 °C is related to the decomposition of carbon from the GO basal planes [16] and also to the removal of silanol groups in the zeolite structure [17].
This implied that the structure of MOR still remained after modification [3, 4, 18].
The broad peak at 3600 cm-1 and a peak at 1637 cm-1 were ascribed to the O-H stretching and bending vibrations of water molecules, respectively, representing trapped water in the zeolite structure [10].
The weight loss at 500-800 °C is related to the decomposition of carbon from the GO basal planes [16] and also to the removal of silanol groups in the zeolite structure [17].
This implied that the structure of MOR still remained after modification [3, 4, 18].
Online since: November 2020
Authors: Sergey V. Gnedenkov, Sergey L. Sinebryukhov, Vladimir S. Egorkin, Alexander N. Minaev, Igor E. Vyaliy, Nikolay V. Izotov, Andrey K. Runov, Dmitry K. Tolkanov, Andrey S. Gnedenkov, Ulyana V. Kharchenko
Gnedenkov1,2,j
1Institute of Chemistry, FEB RAS, 159 Pr. 100-letiya Vladivostoka, Vladivostok 690022, Russia
2Far Eastern Federal University, 8 Sukhanova St., Vladivostok 690950, Russia
aegorkin@ich.dvo.ru, bulyana-kchar@mail.ru, cizotovnv@ich.dvo.ru*, digorvyal@gmail.com, easg17@mail.com, ftolkanov@ich.dvo.ru, grunov.andrew@gmail.com, haminaev@mail.ru, isls@ich.dvo.ru, jsvg21@hotmail.com
Keywords: Plasma electrolytic oxidation, paint covering, organic films, EIS, anticorrosion coatings.
At the same time, an increase in Na2SiO3∙5H2O concentrations structured the oxide layers in different ways, and as a result increased their roughness, porosity, and thickness.
Therefore, for high-quality deposition of organic coatings on PEO-layers, it is necessary to study the effect of PEO conditions and the concentration of sodium metasilicate on the morphology and structure of the coatings formed.
Within 5 minutes, the formation of 25±4 µm oxide layer with a similar structure with anode films is observed (Fig. 1, a, Table 1).
At the same time, an increase in Na2SiO3∙5H2O concentrations structured the oxide layers in different ways, and as a result increased their roughness, porosity, and thickness.
Therefore, for high-quality deposition of organic coatings on PEO-layers, it is necessary to study the effect of PEO conditions and the concentration of sodium metasilicate on the morphology and structure of the coatings formed.
Within 5 minutes, the formation of 25±4 µm oxide layer with a similar structure with anode films is observed (Fig. 1, a, Table 1).
Online since: August 2004
Authors: Young Ho Rho, Kiyoshi Kanamura
Many researchers have developed some electrolytes with a high conductivity of
Li+ ion, such as Li0.35La0.55TiO3 with a perovskite structure and LiTi2(PO4)3-AlPO4 (LTP) with a
NASICON type structure [1-3].
On the other hand, other Interfacial Control Between Electrode and Electrolyte for the Fabrication of All Solid-State Rechargeable Lithium Battery with LiTi2(PO4)3-AlPO4 (LTP) Young-Ho Rho1,2 and Kiyoshi Kanamura 1,2 1 Department of Applied Chemistry, Graduate School of Engineering, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, 192-0397 Tokyo, Japan 2CREST, Japan Science and Technology Agency, 4-1-8, Honcho Kawaguchi, 332-0012 Saitama, Tokyo Keywords: All solid-state rechargeable lithium batteries, sol-gel method, thin film, LTP, cathode synthesis methods have been also considered for the preparation of transition metal oxides for rechargeable lithium batteries.
From the x-ray diffraction pattern, it can be said that the film assigned to LiNi0.5Mn1.5O4 with a spinel structure is obtained.
On the other hand, other Interfacial Control Between Electrode and Electrolyte for the Fabrication of All Solid-State Rechargeable Lithium Battery with LiTi2(PO4)3-AlPO4 (LTP) Young-Ho Rho1,2 and Kiyoshi Kanamura 1,2 1 Department of Applied Chemistry, Graduate School of Engineering, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, 192-0397 Tokyo, Japan 2CREST, Japan Science and Technology Agency, 4-1-8, Honcho Kawaguchi, 332-0012 Saitama, Tokyo Keywords: All solid-state rechargeable lithium batteries, sol-gel method, thin film, LTP, cathode synthesis methods have been also considered for the preparation of transition metal oxides for rechargeable lithium batteries.
From the x-ray diffraction pattern, it can be said that the film assigned to LiNi0.5Mn1.5O4 with a spinel structure is obtained.
Online since: April 2012
Authors: Katayun Barmak, Shlomo Ta'asan, David Kinderlehrer, M. Emelianenko, Y. Epshteyn, R. Sharp, Eva Eggeling
Coarsening in polycrystalline systems is a complicated process involving
details of material structures, chemistry, arrangement of grains in the configuration, and environment.
For a complete discussion of the development of the theory we refer to [1],[5].View of the problem Reprise of mesoscale theory We confine our attention to a two dimensional structure and interfacial energy densities which depend only on lattice misorientation.
In Robert Gomer and Cyril Stanley Smith, editors, Structure and Properties of Solid Surfaces, pages 108--110, Chicago, 1952.
For a complete discussion of the development of the theory we refer to [1],[5].View of the problem Reprise of mesoscale theory We confine our attention to a two dimensional structure and interfacial energy densities which depend only on lattice misorientation.
In Robert Gomer and Cyril Stanley Smith, editors, Structure and Properties of Solid Surfaces, pages 108--110, Chicago, 1952.
Online since: May 2006
Authors: Nuno Correia, João Pires, Manuela B. Carvalho, Moisés Pinto, Ana P. Carvalho, João C. Bordado
Rovisco Pais -
1049-001 Lisbon, Portugal.
2 Department of Chemistry and Biochemistry and CQB, Faculty of Sciences, Campo
Grande - 1749-016 Lisbon, Portugal.
Silicone surfactants have a great influence in the final foam structure.
This structure leads to high pressure drops.
The desired foam structure (with low density and low pressure drop) was only accomplished using two different silicones at the same time, in order to take advantage of the different activity of both.
Silicone surfactants have a great influence in the final foam structure.
This structure leads to high pressure drops.
The desired foam structure (with low density and low pressure drop) was only accomplished using two different silicones at the same time, in order to take advantage of the different activity of both.
Online since: May 2006
Authors: Luís M. Ferreira, M. Helena Gil, António N. Falcão
The disorder promoted in the molecular structure of LDPE due to the grafting process, when
gamma radiation is used as energetic source for reaction initiation, facilitates the diffusion of other
species deep inside the polymeric matrix [5].
These results show the increase of polyHEMA structures grafted on the matrix.
On the other hand the modifications introduced in the molecular structure of the film copolymer backbone, namely some loss of cristalinity, do not seem to restrict its use, even in the case of the films with higher degree of grafting, since the copolymers produced show a reasonable remaining thermal (and apparently mechanical) stability.
Makhlis: Radiation Physics and Chemistry of Polymers (Halsted Press, New York 1975) [8] C.
These results show the increase of polyHEMA structures grafted on the matrix.
On the other hand the modifications introduced in the molecular structure of the film copolymer backbone, namely some loss of cristalinity, do not seem to restrict its use, even in the case of the films with higher degree of grafting, since the copolymers produced show a reasonable remaining thermal (and apparently mechanical) stability.
Makhlis: Radiation Physics and Chemistry of Polymers (Halsted Press, New York 1975) [8] C.
Online since: February 2011
Authors: Fu Chuan Ding, Qing Song Chen, Shou Lian Lai, Xiao Yan Li
Bismaleimide (BMI) Resin Modified by PEEK Bearing Pendant Reactive
Propenyl Groups
Fuchuan Ding1,2, a, Qingsong Chen1,2,b, Shoulian Lai1,2,c , Xiaoyan L1,2,d
1College of Chemistry and Materials Sciences, Fujian Normal University, Fuzhou 350007, P.
The final phase structures and toughness mechanism can be obtained from the fracture morphology.
There are very little PEEK particles separated out from the BMI phase with curing reaction developing, but no obvious separated phase structure could be found.
Due to the adequate interfacial adhesion between the PEEK and BMI resin, there is no obvious separated phase structure could be found on the failure surface.
The final phase structures and toughness mechanism can be obtained from the fracture morphology.
There are very little PEEK particles separated out from the BMI phase with curing reaction developing, but no obvious separated phase structure could be found.
Due to the adequate interfacial adhesion between the PEEK and BMI resin, there is no obvious separated phase structure could be found on the failure surface.