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Online since: January 2012
Authors: Da Yong Wu, Qi Zheng, Jie Jiao, Ya Can Wang, Zhe Fang
China’s New Nanofibrous Power Lithium-ion Battery Separator and Its Commercialization Status
Yacan Wang*1, a, Dayong Wu*2,b, Qi Zheng3,c, Zhe Fang4,d and Jie Jiao5,e
1,3,4&5 School of Economics and Management, Beijing Jiaotong University, Beijing 100044, PR China
2Technical Institute of Physics and Chemistry, CAS, Beijing 100190, PR, China
a yacan.wang@gmail.com, b dayongwu@mail.ipc.ac.cn, c 10241056@bjtu.edu.cn,
d 09221003@bjtu.edu.cn, e 09321057@bjtu.edu.cn
* Corresponding authors.
Table 1 Property comparison between nanofiber separators and three separators abroad property\separator Celgard(US) Ube(Japan) Separion(Germany) Nanofiber separator Structure trilayer trilayer monolayer monolayer Composition PP/PE/PP PP/PE/PP fiber/Al2O3 Polymer composite separator Thickness 38 40 32 10~60available Gurley[s] 22 <20 unknown <20 Horizental tensile strength [kg/cm2] >1300 >1500 ~60 Max2400 Vertical tensile strength [kg/cm2] ~130 ~130 ~70 Max2400 porosity ~45% ~40% Hard to be tested 20~75%controllable Melting temperature[℃] 135/160 135/160 >200 >170 Pucture resistance[g/mil] >300 >300 >100 >100 90℃ shrinkage ~5% ~5% No shrinkage <3% High-rate discharge <10C better <10C better - 15Cassurable Cycle performance - - - Superior to imported products Data source:Xiangcai Securities, 2010 4 Commercialization status of power lithium-ion battery separators Power lithium-ion battery separators are still at their early stages, where products at core competency level haven't been acquired
Wu, etc.: Single-Molecule Behavior of Dendritic Poly(ethylene glycol) Structures towards Lithium Ions.
Table 1 Property comparison between nanofiber separators and three separators abroad property\separator Celgard(US) Ube(Japan) Separion(Germany) Nanofiber separator Structure trilayer trilayer monolayer monolayer Composition PP/PE/PP PP/PE/PP fiber/Al2O3 Polymer composite separator Thickness 38 40 32 10~60available Gurley[s] 22 <20 unknown <20 Horizental tensile strength [kg/cm2] >1300 >1500 ~60 Max2400 Vertical tensile strength [kg/cm2] ~130 ~130 ~70 Max2400 porosity ~45% ~40% Hard to be tested 20~75%controllable Melting temperature[℃] 135/160 135/160 >200 >170 Pucture resistance[g/mil] >300 >300 >100 >100 90℃ shrinkage ~5% ~5% No shrinkage <3% High-rate discharge <10C better <10C better - 15Cassurable Cycle performance - - - Superior to imported products Data source:Xiangcai Securities, 2010 4 Commercialization status of power lithium-ion battery separators Power lithium-ion battery separators are still at their early stages, where products at core competency level haven't been acquired
Wu, etc.: Single-Molecule Behavior of Dendritic Poly(ethylene glycol) Structures towards Lithium Ions.
Online since: March 2019
Authors: Siti Khoiri Inayah, Tutik Dwi Wahyuningsih, Chairil Anwar, Harno Dwi Pranowo
Ultrasound-Assisted Synthesis of Some Curcumin Analogs
and their Synergistic Effect with Ferulic Acid
on α-Amylase Inhibition
Siti Khoiri Inayaha, Harno Dwi Pranowob, Tutik Dwi Wahyuningsihc
and Chairil Anward,*
Department of Chemistry, Faculty of Mathematics and Natural Sciences
Universitas Gadjah Mada, Sekip Utara Yogyakarta 55281, Indonesia
as.khoiri@mail.ugm.ac.id, bharnodp@ugm.ac.id, ctutikdw@ugm.ac.id, dchanwar@ugm.ac.id
Keywords: Curcumin Analogs, Ultrasound, Synergistic Effect, Ferulic Acid, α-Amylase
Abstract.
Comparison of synthetic methods between conventional and ultrasound-assisted reaction for Curcumin analog of A, B, and C Entry Product Conventional method Ultrasound-assisted method 1st carbonyl 2nd carbonyl Melting point (oC) Yield (%) Time (min) Melting point (oC) Yield (%) Time (min) (A) 58.4 37.5 90 50.7 82.5 20 (B) 302.7 76.3 70 305.0 85.0 10 (C) 64.8 34.4 70 71.0 76.1 20 The products have been reported by Liang et al., 2008 [6], so that the structure was not fully characterized.
The structure elucidation was only performed by FTIR, 1H-NMR and mass spectrometers and the spectra were compared to the reported journal [6].
Comparison of synthetic methods between conventional and ultrasound-assisted reaction for Curcumin analog of A, B, and C Entry Product Conventional method Ultrasound-assisted method 1st carbonyl 2nd carbonyl Melting point (oC) Yield (%) Time (min) Melting point (oC) Yield (%) Time (min) (A) 58.4 37.5 90 50.7 82.5 20 (B) 302.7 76.3 70 305.0 85.0 10 (C) 64.8 34.4 70 71.0 76.1 20 The products have been reported by Liang et al., 2008 [6], so that the structure was not fully characterized.
The structure elucidation was only performed by FTIR, 1H-NMR and mass spectrometers and the spectra were compared to the reported journal [6].
Online since: May 2019
Authors: Wassana Wichai, Niwat Anuwongnukroh, Surachai Dechkunakorn, Kanin Nimcharoensuk, Vanthana Sattabanasuk, Panya Sunintaboon
Degree of Conversion of Experimental Light-Cured Orthodontic Adhesives
Kanin Nimcharoensuk1,a, Niwat Anuwongnukroh1,b*,
Surachai Dechkunakorn1,c, Vanthana Sattabanasuk2,d,
Panya Sunintaboon3,e, and Wassana Wichai4,f
1Department of Orthodontics, Faculty of Dentistry, Mahidol University, Thailand
2Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Thailand
3Department of Chemistry, Faculty of Science, Mahidol University, Thailand
4Research Office, Faculty of Dentistry, Mahidol University, Thailand
akinta_13@hotmail.com, b*niwat.anu@mahidol.ac.th, csurachai.dec@mahidol.ac.th
dvanthana.sat@mahidol.ac.th, epanya.sun@mahidol.ac.th, fwassana.wic@mahidol.ac.th
*corresponding author
Keywords: Degree of conversion, FTIR, Light-cured orthodontic adhesive
Abstract.
Effect of chemical structure on degree of conversion in light-cured dimethacrylate-based dental resins.
Network structure of Bis-GMA- and UDMA-based resin systems.
Effect of chemical structure on degree of conversion in light-cured dimethacrylate-based dental resins.
Network structure of Bis-GMA- and UDMA-based resin systems.
Online since: March 2020
Authors: Lutz Krüger, Marcel Mandel, Volodymyr Kietov, Marco Wendler
The electron micrograph let identify an intergranular corrosion attack starting at the pores and circular shaped structures surrounding this locations, which are attributed to the accumulation of corrosion products resulting from the centered anodic dissolution process.
Landolt, Passive films on stainless steels - Chemistry, structure and growth, Electrochim.
Landolt, Passive films on stainless steels - Chemistry, structure and growth, Electrochim.
Online since: August 2017
Authors: Oratai Jongprateep, Napamas Jaroonvechatam, Supicha Stienkijumpai, Sicha Kaewsuwan, Thanawat Meesak
Air entrained pore structure, arises from evolution of gas surrounding air entrainment agent, appears to have sizes ranging from 50 to 250 millimeters.
Neithalath, Compressive behavior of pervious concretes and a quantification of the influence of random pore structure features, Mater.
Geopolymer chemistry and applications. 3rd ed.
Neithalath, Compressive behavior of pervious concretes and a quantification of the influence of random pore structure features, Mater.
Geopolymer chemistry and applications. 3rd ed.
Online since: September 2017
Authors: Dmitry A. Zherebtsov, D.A. Vinnik, Evgeny A. Trofimov
Kazakevich, Crystal structure and magnetic properties ofBaFe12-xAlxO19 (x= 0.1 – 1.2), J.
Stergiou, Single and double-layer composite microwave absorbers with hexaferrite BaZn0.6Zr0.3X0.3Fe10.8O19 (X = Ti, Ce, Sn) powders, Materials Chemistry and Physics, 186 (2017) 584-591
Jin, Synthesis, structure and magnetic properties of hexagonal BaFe12O19 ferrite obtained via a hydrothermal method, Journal of Materials Science: Materials in Electronics, 27(10) (2016) 10864-10868
Stergiou, Single and double-layer composite microwave absorbers with hexaferrite BaZn0.6Zr0.3X0.3Fe10.8O19 (X = Ti, Ce, Sn) powders, Materials Chemistry and Physics, 186 (2017) 584-591
Jin, Synthesis, structure and magnetic properties of hexagonal BaFe12O19 ferrite obtained via a hydrothermal method, Journal of Materials Science: Materials in Electronics, 27(10) (2016) 10864-10868
Online since: September 2015
Authors: Karel Kulísek, Dominik Gazdič, Karel Dvořák, Radek Magrla
The reason is releasing large amount of C3A from ettringite, primarily arising during setting of cement pasta, and thus before final consolidation of structure of hardened cement stone.
CZ.1.05/2.1.00/03.0097, as an activity of the regional Centre AdMaS "Advanced Materials, Structures and Technologies".
Taylor, Cement chemistry.
CZ.1.05/2.1.00/03.0097, as an activity of the regional Centre AdMaS "Advanced Materials, Structures and Technologies".
Taylor, Cement chemistry.
Online since: November 2023
Authors: Yus Rama Denny, Adhitya Trenggono, Marlo Siswahyu, Sadaharu Hamaguchi, Rocky Alfanz, Lusiani Dewi Assaat, Endi Permata, Sulaeman Deni Ramdani, Sang Su Lee, Tubagus Alwin Maulana
., Ltd, Minami-ku, Kumamoto City, Kumamoto Prefecture 860-0834, Japan
4Department of Electrical Engineering, University of Sultan Ageng Tirtayasa, Banten, 42435, Indonesia
5Department of Vocational Electrical Engineering, University of Sultan Ageng Tirtayasa, Banten, 42435, Indonesia
6Department of Chemistry Education, University of Sultan Ageng Tirtayasa, Banten, 42435, Indonesia
7Department of Vocational Mechanical Engineering, University of Sultan Ageng Tirtayasa, Banten, 42435, Indonesia
8Department of Metallurgical Engineering, University of Sultan Ageng Tirtayasa, Banten, Indonesia
9Department of Physics, Chungbuk National University, Cheongju, 361-763, Korea
a*Corresponding author: yusramadenny@untirta.ac.id
babukhalifahsaladin@gmail.com, crin.staffing@gmail.com, drocky.alfanz@untirta.ac.id, eendipermata@untirta.ac.id, fassaatlusi@gmail.com, gs.deni.ramdani@untirta.ac.id, hadhitya.trenggono@untirta.ac.id, i3334180014@untirta.ac.id, jsangsulee@gmail.com
Keywords: MgO, electron
By assuming the energy level of neutral Mg atoms and O atoms were arranged in the face-centered cubic, the band structure of MgO can be understood.
Kantorovich, “Study of the surface electronic structure of MgO bulk crystals and thin films,” Surf.
By assuming the energy level of neutral Mg atoms and O atoms were arranged in the face-centered cubic, the band structure of MgO can be understood.
Kantorovich, “Study of the surface electronic structure of MgO bulk crystals and thin films,” Surf.
Online since: October 2015
Authors: Kiyotaka Tanaka, Yutaka Yoshida, Yuji Ino
Furthermore, these components are found to transform each other in the Mössbauer spectra by changing experimental conditions such as temperature, external voltage, electron or light irradiation, and external stress as well as by changing the Fermi level, carriers and their concentrations, and the device structures in the vicinity of 57Fe probes.
Grandjean (Eds.), Mössbauer Spectroscopy Applied to Inorganic Chemistry, vol. 3, Plenum Press, New York, London, 1989, pp. 445-512
Bergholz, Impact of the electronic structure on the solubility and diffusion of 3d transition elements in silicon, Phys.
Grandjean (Eds.), Mössbauer Spectroscopy Applied to Inorganic Chemistry, vol. 3, Plenum Press, New York, London, 1989, pp. 445-512
Bergholz, Impact of the electronic structure on the solubility and diffusion of 3d transition elements in silicon, Phys.
Online since: June 2020
Authors: Bo Zhang, Da Chun Liu, Zhen Gen Zhou, Xu Li, Ling Li, Bin Yang, Xu Peng Gu, Shuang Ping Wang, Heng Xiong
Fig. 2 The XRD pattern of Cu2S
2.2 Equipment
The experimental device is the vacuum distillation furnace, and the structure of the experimental device is shown in Fig. 3.
Fig. 3 The structure of the vacuum furnace 1.
Journal of Materials Chemistry, 2009, 20(6):1097-1102
Fig. 3 The structure of the vacuum furnace 1.
Journal of Materials Chemistry, 2009, 20(6):1097-1102