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Online since: November 2013
Authors: M.S. Shamsudin, Saifollah Abdullah, M. Rusop, Suriani Abu Bakar, Mohd Husairi Fadzilah Suhaimi, Muhammad Rashid Mahmud, M.K. Harun
., Malaysia
4 School of Chemistry and Environmental Studies, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor D.E., Malaysia
5 Department of Physics, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak D.R., Malaysia
6 NANO-ElecTronic Centre, Faculty of Electrical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor D.E., Malaysia
aM.S.Shamsudin@soton.ac.uk, bmrashidmahmud@yahoo.com, cmhusairifadzilah@yahoo.com, dmohamadkamal@salam.uitm.edu.my, eabsuriani@yahoo.com, fsaifollah@salam.uitm.edu.my, grusop@salam.uitm.edu.my
Keywords: carbon nanotubes; acrylate; nanocomposite; micro-Raman; impedance; optical
Abstract.
CNT is categorized by their structures such as single-walled CNT (SWCNT), double-walled CNT (DWCNT) and multi-walled CNT (MWCNT).
The acrylate was supplied by one of PhD students at School of Chemistry and Environmental Studies, UiTM and used as received without any special pretreatment.
According to Dresselhaus [17], D-peak at ~1350 cm-1 is represent to the vibrational mode in disordered lattice structure of graphite due to non-uniform atomic arrangement, while G-peak at ~1600 cm-1 is appropriate to the vibrational mode in graphite-like materials.
Lukyanovich, O strukture ugleroda, obrazujucegosja pri termiceskom razlozenii okisi ugleroda na zeleznom kontakte (About the structure of carbon formed by thermal decomposition of carbon monoxide on iron substrate), Zurn Fisic Chim (Soviet Journal of Physical Chemistry) 26 (1952) 88-95
CNT is categorized by their structures such as single-walled CNT (SWCNT), double-walled CNT (DWCNT) and multi-walled CNT (MWCNT).
The acrylate was supplied by one of PhD students at School of Chemistry and Environmental Studies, UiTM and used as received without any special pretreatment.
According to Dresselhaus [17], D-peak at ~1350 cm-1 is represent to the vibrational mode in disordered lattice structure of graphite due to non-uniform atomic arrangement, while G-peak at ~1600 cm-1 is appropriate to the vibrational mode in graphite-like materials.
Lukyanovich, O strukture ugleroda, obrazujucegosja pri termiceskom razlozenii okisi ugleroda na zeleznom kontakte (About the structure of carbon formed by thermal decomposition of carbon monoxide on iron substrate), Zurn Fisic Chim (Soviet Journal of Physical Chemistry) 26 (1952) 88-95
Online since: July 2011
Authors: Ming Lin Jin, Rui Zhang, Xiao Jia Duan, Quan Gui Guo, Bei Zhou, Xi Miao Liu, Li Cheng Ling
China
4 School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, P.
Many efforts have been made to correlate structure and properties of ACs to the performance of ECs.
So the middle frequency part is related to the electrolyte penetration inside the porous structure.
Marincic, Journal of Electroanalytical Chemistry.vol.491, pp.9–21, 2000
Electroanalytical Chemistry, vol. 443, pp.149–154, 1998.
Many efforts have been made to correlate structure and properties of ACs to the performance of ECs.
So the middle frequency part is related to the electrolyte penetration inside the porous structure.
Marincic, Journal of Electroanalytical Chemistry.vol.491, pp.9–21, 2000
Electroanalytical Chemistry, vol. 443, pp.149–154, 1998.
Online since: April 2013
Authors: Johann Plank, Thomas Pavlitschek, Markus Gretz
Latex polymers commonly used in construction are based on styrene/acrylate or ethylene/vinyl acetate chemistry [5].
Fig. 1 Chemical structures of the polyelectrolytes AFS, MFS and PAH used for fabrication of the multilayer core-shell particles.
Their chemical structures are shown in Fig.1.
[7] Bertrand, P.; Jonas, A.; Laschewsky, A.; Legras, R.: Ultrathin polymer coatings by complexation of polyelectrolytes at interfaces: suitable materials, structure and properties, Macromol.
B.; Fery, A.; Brumen, M.; Möhwald, H.: Physical chemistry of encapsulation and release, Phys.
Fig. 1 Chemical structures of the polyelectrolytes AFS, MFS and PAH used for fabrication of the multilayer core-shell particles.
Their chemical structures are shown in Fig.1.
[7] Bertrand, P.; Jonas, A.; Laschewsky, A.; Legras, R.: Ultrathin polymer coatings by complexation of polyelectrolytes at interfaces: suitable materials, structure and properties, Macromol.
B.; Fery, A.; Brumen, M.; Möhwald, H.: Physical chemistry of encapsulation and release, Phys.
Online since: November 2012
Authors: João N.J. Nogueira, Pedro A.O.C. Silva, Consuelo Yuste-Vivas, Laura C.J. Pereira, Manuela Ramos Silva, João Carlos Waerenborgh
The crystal structure of (µ3-Oxo)-hexakis(µ2-cyanoacetato)-triaqua-tri-iron(III) nitrate pentahydrate shows that the trinuclear ferric complex has an equilateral molecular structure which is manifested in the 57Fe Mössbauer spectrum single doublet.
The structures were solved with direct methods and refined with full-matrix least-squares (SHELX-97) [6].
Prassides (Ed.), Mixed Valency Systems: Applications in Chemistry, Physics and Biology, Kluwer, Dordrecht, 1991
Structure and magnetic behavior, Polyhedron26 (2007) 763-772
Hendrickson, Synthesis, crystal structure and magnetic properties of triaquahexakis((μ)2-betaine)(( μ)3-oxo)triiron(III) perchlorate heptahydrate, Transition Metal Chemistry 26 (20001) 195-197
The structures were solved with direct methods and refined with full-matrix least-squares (SHELX-97) [6].
Prassides (Ed.), Mixed Valency Systems: Applications in Chemistry, Physics and Biology, Kluwer, Dordrecht, 1991
Structure and magnetic behavior, Polyhedron26 (2007) 763-772
Hendrickson, Synthesis, crystal structure and magnetic properties of triaquahexakis((μ)2-betaine)(( μ)3-oxo)triiron(III) perchlorate heptahydrate, Transition Metal Chemistry 26 (20001) 195-197
Online since: May 1996
The Proceedings contain the 32 papers arranged in sections, corresponding to their
scientific contents: (I) Structure and Characterization, (2) Materials for Electronics ru1d Optoelectronics,
(3) Physical Chemistry of Materials, (4) Polymers, (5) Thin Films, (6) Powders, Sintering and
Composites, (7) Electrochemistry ru1d Physical Metallurgy .
Online since: January 2009
Authors: Atsuro Eitoku, Rita Vos, James Snow, L.H.A. Leunissens, Masayuki Wada, Kenichi Sano, Paul W. Mertens
., Ltd. 480-1, Takamiya, Hikone, Shiga 522-0292, Japan
2
IMEC vzw, Kapeldreef 75, B-3001 Leuven, Belgium
a
m.wada@screen.co.jp
Keywords: Solvent, photoresist removal, aerosol spray, NMP, DMSO
Introduction
The introduction of metal gates and high-k dielectrics in FEOL and porous ULK dielectrics in BEOL
presents severe issues [1] and leads to the requirement of new chemistries and processes.
On this process application, the requirements dictate complete PR removal, as well as a damage-free process to the underlying gate stack structures.
From other experimental results, it is reported that a gate stack structure collapses when over 80 L/min of N2 is applied.
And Figure 7 shows Cov (Capacitance on overlap regions under the gate structure) on the devices with different strip process.
On this process application, the requirements dictate complete PR removal, as well as a damage-free process to the underlying gate stack structures.
From other experimental results, it is reported that a gate stack structure collapses when over 80 L/min of N2 is applied.
And Figure 7 shows Cov (Capacitance on overlap regions under the gate structure) on the devices with different strip process.
Online since: December 2013
Authors: Tôru Kyômen, Kimiko Dejima, Minoru Hanaya, Yusuke Ogiwara
Composition Dependence of the Glass Network Structure in Li+-ion Conducting Glasses of (LiCl)x(LiPO3)1-x Studied by 31P MAS NMR
Yusuke Ogiwara, Kimiko Dejima, Toru Kyomen and Minoru Hanayaa
Department of Chemistry and Chemical Biology, Graduate School of Engineering,
Gunma University, Tenjin-cho 1-5-1, Kiryu, Gunma 376-8515, Japan
amhanaya@gunma-u.ac.jp
Keywords: Ion Conducting Glass, Glass Network Structure, 31P MAS NMR, Lithium Chloride (LiCl), Lithium Phosphate (LiPO3)
Abstract.
For a good understanding of the ion conduction mechanism, it is important to know the glass structure precisely.
However, the effect of the addition of lithium halide on the glass network structure has not been examined, and usually the glass network structure is considered to be unchanged by addition of dopant salts [7, 8].
Fig. 2 Structure of the glass former of LiPO3.
In lithium phosphate glasses, an activation energy for Li+-ion migration in the glasses has been observed to decrease and thus the Li+-ion conductivity increases by the dispersion of the glass network structure in the order from LiPO3 having one-dimensional chain structure to Li1.4PO3.2 with pentamer structure to Li1.67PO3.33 with trimer structure [12].
For a good understanding of the ion conduction mechanism, it is important to know the glass structure precisely.
However, the effect of the addition of lithium halide on the glass network structure has not been examined, and usually the glass network structure is considered to be unchanged by addition of dopant salts [7, 8].
Fig. 2 Structure of the glass former of LiPO3.
In lithium phosphate glasses, an activation energy for Li+-ion migration in the glasses has been observed to decrease and thus the Li+-ion conductivity increases by the dispersion of the glass network structure in the order from LiPO3 having one-dimensional chain structure to Li1.4PO3.2 with pentamer structure to Li1.67PO3.33 with trimer structure [12].
Online since: May 2015
Authors: Xiao Wei Liu, Li Tian, He Zhang, Xiao Wei Han, Tong Dai
The device included: printed circuit board (PCB) substrate with vertical embedded electrodes; polymethyl methacrylate (PMMA) with micro structures; PMMA cover with amperometric detection sensor (ADS).
In this paper, we presented a novel structure to integrate the traditional Ag/AgCl reference electrodes on a microfluidic device.
Design and Fabrication The device included: PCB substrate with vertical embedded electrodes; PMMA middle layer with micro structures; PMMA cover with ADS.
The device assembly diagram and sensor structure were shown in Fig.1.
Analytical chemistry, 2011, 83(15): 5920-5927
In this paper, we presented a novel structure to integrate the traditional Ag/AgCl reference electrodes on a microfluidic device.
Design and Fabrication The device included: PCB substrate with vertical embedded electrodes; PMMA middle layer with micro structures; PMMA cover with ADS.
The device assembly diagram and sensor structure were shown in Fig.1.
Analytical chemistry, 2011, 83(15): 5920-5927
Online since: November 2025
Authors: Lila Abdulaziz Al Khtaby
Then, checked how their growth changed the structure of zinc oxide.
Using XRD to fix structure and be sure that the doped X completely dissolved in ZnO without changing the structure of the wurtzite.
Results in Chemistry. 5 (2023) 100961
Barzinjy, Structure, synthesis, and applications of ZnO nanoparticles: A review.
Journal of Materials Chemistry A. 6(36) (2018) 17688-17697
Using XRD to fix structure and be sure that the doped X completely dissolved in ZnO without changing the structure of the wurtzite.
Results in Chemistry. 5 (2023) 100961
Barzinjy, Structure, synthesis, and applications of ZnO nanoparticles: A review.
Journal of Materials Chemistry A. 6(36) (2018) 17688-17697
Online since: August 2013
Authors: Xing Wen Zheng, Jin Long Fan, Xue Dan Chen, Min Gong
Corrosion behavior of steel structure residences under atmospheric condition in Dujiangyan ——A year experimental summary
Min Gong1, a, Xingwen Zheng2, b, Jinlong Fan1, c and Xuedan Chen1, d
1College of Materials and Chemical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, 643000, China
2School of Chemistry and Pharmaceutical Engineering, Sichuan University of Science & Engineering, Zigong, Sichuan, 643000, China
agongmin@suse.edu.cn, bzxwasd@126.com, claban110@126.com, dchenxdzg@126.com
Key words: Corrosion behavior; Atmospheric condition; Corrosion rate; Steel structure residence
Abstract: This study analyzed the corrosion behavior of construction materials which were used for steel structure residences in Dujiangyan City, Sichuan Province, under atmospheric condition.
Nevertheless, during the long-term usage of steel structure residences, some critical problems such as corrosion and lifetime of both the steel and its coating are needed to be concerned.
Based on Fig. 3, it can be found that the corrosion rate of similar samples with different steel structure types and testing sites were quite different.
Conclusion In steel structure residences, the corrosion rate of the same materials was different in various regional locations.
Nevertheless, during the long-term usage of steel structure residences, some critical problems such as corrosion and lifetime of both the steel and its coating are needed to be concerned.
Based on Fig. 3, it can be found that the corrosion rate of similar samples with different steel structure types and testing sites were quite different.
Conclusion In steel structure residences, the corrosion rate of the same materials was different in various regional locations.