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Online since: September 2008
Authors: D. Wikner, Madan Dubey, Paul Amirtharaj, Eugene Zakar
Photolithography mask pattern of the bridge structure using AZ-5214 photoresist 2 um thick.
3.
Isotropic etching of the silicon trench using SF6 chemistry.
The density of protrusions in the silicon noted earlier was large enough to act as a screen and prevented etching of the silicon trench using SF6 plasma chemistry.
We demonstrated the fabrication of an airbridge structure, pixel, after the second mask pattern by isotropically etching a silicon trench around the previously patterned HTSC line structure as shown in figure 5.
We are conducting design of experiments to determine the rate of silicon etched depending on the amount of silicon area exposed to the plasma, the mask dimensions, and etch chemistry recipe.
Isotropic etching of the silicon trench using SF6 chemistry.
The density of protrusions in the silicon noted earlier was large enough to act as a screen and prevented etching of the silicon trench using SF6 plasma chemistry.
We demonstrated the fabrication of an airbridge structure, pixel, after the second mask pattern by isotropically etching a silicon trench around the previously patterned HTSC line structure as shown in figure 5.
We are conducting design of experiments to determine the rate of silicon etched depending on the amount of silicon area exposed to the plasma, the mask dimensions, and etch chemistry recipe.
Online since: March 2017
Authors: Alma Muratbekovna Uskenbayeva, Alexander Tikhonovich Volochko, Sergey Pavlovich Korolyov, Nelya Amanjolovna Shamelkhanova
Kuyunko, Fullerene Black: Structure, Properties and Possible Applications, Russian Journal of General Chemistry 81 (2011) 345-353
Vlasov, Variation of Sorption Properties of Fullerene Black in Storage, Russian Journal of Applied Chemistry 84 (2011) 1506-1510
Ponimatkin, Effect of Fullerene Black Additions on the Tribological Properties of Armanid PA SV30-1, Russian Journal of Applied Chemistry 84 (2011) 1395-1399
Alekhin, et.al, Caprolons Mofied with Fullerenes and Fulleroid Materials, Russian Journal of Applied Chemistry 79 (2006) 306-309
Zhukov, Globular Graphite – Structure, Properties, J.
Vlasov, Variation of Sorption Properties of Fullerene Black in Storage, Russian Journal of Applied Chemistry 84 (2011) 1506-1510
Ponimatkin, Effect of Fullerene Black Additions on the Tribological Properties of Armanid PA SV30-1, Russian Journal of Applied Chemistry 84 (2011) 1395-1399
Alekhin, et.al, Caprolons Mofied with Fullerenes and Fulleroid Materials, Russian Journal of Applied Chemistry 79 (2006) 306-309
Zhukov, Globular Graphite – Structure, Properties, J.
Online since: July 2013
Authors: Olga N. Koroleva, Aleksey A. Tupitsyn, Valeriy A. Bychinskyi
Viscosity and structure of molten silicates.
Canadian Journal of Chemistry. 48(9), (1970)
Physics and Chemistry of Glasses. 6(5), (1965)
Thermodynamic Mixing Properties and the Structure of Silicate Melts.
Structure of silicate melts: Raman spectroscopic data and thermodynamic simulation results.
Canadian Journal of Chemistry. 48(9), (1970)
Physics and Chemistry of Glasses. 6(5), (1965)
Thermodynamic Mixing Properties and the Structure of Silicate Melts.
Structure of silicate melts: Raman spectroscopic data and thermodynamic simulation results.
Online since: July 2012
Authors: Zhen Li, Long Fang Ren, Xue Chuan Wang
The FT-IR and GPC were used to characterize the structure of HBPU.
It is a kind of special molecular structure of polymer that has attracted extensive interest in the field of polymer science.
It shows very different properties from the corresponding linear polymer, because hyperbranched polymers are highly branched three-dimensional structure and has a large number of end groups.
Diphenylmethane-4,4'-diisocyanate (MDI), Yantai Wanhua polyurethanes co.ltd.; P-3020 (PBA, Mn=2000), M&F chemistry co.ltd.; Propanetriol(TG), Thylene glycol(EG),N,N-dime -thyllformamide (DMF); Dibutyltindilaurate (DBTDL), Methyl alcohol: Tianjin Fuchen chemistry co.ltd.
Conclusions Get the characterization of the molecular structure of HBPU with IR, NMR and GPC and the expected product was obtained.
It is a kind of special molecular structure of polymer that has attracted extensive interest in the field of polymer science.
It shows very different properties from the corresponding linear polymer, because hyperbranched polymers are highly branched three-dimensional structure and has a large number of end groups.
Diphenylmethane-4,4'-diisocyanate (MDI), Yantai Wanhua polyurethanes co.ltd.; P-3020 (PBA, Mn=2000), M&F chemistry co.ltd.; Propanetriol(TG), Thylene glycol(EG),N,N-dime -thyllformamide (DMF); Dibutyltindilaurate (DBTDL), Methyl alcohol: Tianjin Fuchen chemistry co.ltd.
Conclusions Get the characterization of the molecular structure of HBPU with IR, NMR and GPC and the expected product was obtained.
Online since: July 2012
Authors: Xiao Hong Tang, Chun Liang Han, Jin Wang, Cheng Wei Li, Bao Jun Li
Preparation of Mesoporous MCM-41 in Open-Vessel for Catalytic Synthesis of Geranyl Propionate
Xiaohong Tang1, a, Baojun Li2, b, Chunliang Han1, c, Jin Wang1, d
and Chengwei Li1, e
1Department of Chemistry, Henan Institute of Education, Zhengzhou 450046, P R China
2Department of Chemistry, Zhengzhou University, Zhengzhou 450001, P R China
atxhyxw@126.com, blbjfcl@zzu.edu.cn, chancl1969@126.com, dwangjin93@163.com, elcwli@126.com
Keywords: Mesoporous molecular sieves, MCM-41, Catalyst, Geranyl propionate
Abstract.
Mesoporous MCM-41 possesses one dimensional pore structure with excellent hydrothermal stability.
FI–IR spectrum in the range of 400-1400cm-1 can provide the structure information of molecular sieve frameworks.
The distributions of pore diameter are concentrated in the range of typical mesoporous structures (Fig. 2b).
Yu: Molecular Sieve and Chemistry of Porous Materials, Science Press (Beijing), pp.135-137, 2004 (in Chinese)
Mesoporous MCM-41 possesses one dimensional pore structure with excellent hydrothermal stability.
FI–IR spectrum in the range of 400-1400cm-1 can provide the structure information of molecular sieve frameworks.
The distributions of pore diameter are concentrated in the range of typical mesoporous structures (Fig. 2b).
Yu: Molecular Sieve and Chemistry of Porous Materials, Science Press (Beijing), pp.135-137, 2004 (in Chinese)
Online since: May 2011
Authors: Jian Peng Zou
The reason of HA’s slow growth under low temperatures is probably that the local lattice disorders had not been got rid of and internal structure of the particles had not been changed.
Materials Chemistry and Physics, 2003, 78:816-824 [4] Li SP.
Chinese Journal of Inorganic Chemistry, 2005, 21(10):1501-1505 [7] Hu JS, Agrawal DK, fang Y, et al.
Crystallization chemistry [M].
Mn3O4:Solvo-thermal Synthesis and Crystallization Kinetics, Chinese Journal of Inorganic Chemistry, 2005, 21(6): 929-933
Materials Chemistry and Physics, 2003, 78:816-824 [4] Li SP.
Chinese Journal of Inorganic Chemistry, 2005, 21(10):1501-1505 [7] Hu JS, Agrawal DK, fang Y, et al.
Crystallization chemistry [M].
Mn3O4:Solvo-thermal Synthesis and Crystallization Kinetics, Chinese Journal of Inorganic Chemistry, 2005, 21(6): 929-933
Online since: January 2012
Authors: Si Yao He, Na Na Zhang, Wei Wang, Hai Xia Qiu, Qiao Juan Gong, Yong Qiang He, Wen Chao Wang
Here, rGO/CS composite films were fabricated and their structure and properties were studied.
The rGO sheets tend to pile up to form layered structure.
[3] Y.Matsuo, K.Hatase and Y.Sugie: Chemistry of Materials Vol. 10(1998), p. 2266-2269
Zhou et al: Chemistry of Materials Vol. 22(2010), p. 4096-4102
Yao et al: Journal of Materials Chemistry Vol. 20(2010), p. 9032-9036
The rGO sheets tend to pile up to form layered structure.
[3] Y.Matsuo, K.Hatase and Y.Sugie: Chemistry of Materials Vol. 10(1998), p. 2266-2269
Zhou et al: Chemistry of Materials Vol. 22(2010), p. 4096-4102
Yao et al: Journal of Materials Chemistry Vol. 20(2010), p. 9032-9036
Online since: February 2011
Authors: Jin Gang Qi, Ke Tang, Xin Hong
Compared with those of the corresponding microsized samples, The peak at 459 cm-1 is assigned to the structure insensitive internal TO4 (T=Si or Al) tetrahedra bending peak of zeolite Y.
Jacobsen, Inorganic Chemistry, 39, 2279 (2000)
Kaneko, Journal Physics Chemistry B107, 10974 (2003)
Jacobsen, Inorganic Chemistry 39, 2279 (2000)
Pang, Chemistry-Zeolites and Porous Materials In Chinese, Science Press, Bei Jing, 2004, p. 173.
Jacobsen, Inorganic Chemistry, 39, 2279 (2000)
Kaneko, Journal Physics Chemistry B107, 10974 (2003)
Jacobsen, Inorganic Chemistry 39, 2279 (2000)
Pang, Chemistry-Zeolites and Porous Materials In Chinese, Science Press, Bei Jing, 2004, p. 173.
Online since: July 2013
Authors: Guang Wei Yuan, Li Wang, Sha Ren, Qian Nan Jia
Ion Exchange Synthesis and Luminescence Properties of Rodlike Phosphors ZnMoO4:Eu3+ for White LEDs
Qiannan Jiaa, ShaRen *b, Guangwei Yuanc,Li Wangd
Key Laboratory for Physics and Chemistry of Functional Materials,College of Chemistry and Enviroment Science,Inner Mongolia Normal University,Hohhot
ajiaqiannan@126.com,bsr@imnu.edu.cn,cyuanguangwei1221@126.com,dll890306@163.com
Keywords: ZnMoO4:Eu3+; Ion exchanged method;luminescence properties
Abstract.
The structure and morphology of products were characterized through XRD, TG-DTA, TEM, HRTEM and UV-vis after preparation.
The analysis is consistent with the results of XRD, explaining that the crystal structure is changed at 650℃.
This figures reveal uniform rods with bundle aggregation structure.
We can provide that the ZnMoO4:Eu3+ red phosphors with Special structure can be obtained by ion exchange method.
The structure and morphology of products were characterized through XRD, TG-DTA, TEM, HRTEM and UV-vis after preparation.
The analysis is consistent with the results of XRD, explaining that the crystal structure is changed at 650℃.
This figures reveal uniform rods with bundle aggregation structure.
We can provide that the ZnMoO4:Eu3+ red phosphors with Special structure can be obtained by ion exchange method.
Online since: January 2012
Authors: Xue Song Huang, Jing Sun, Ning Peng, Wen Xiang Ao
The surface structure of the MIPs was visualized by scanning electron micrography.
By contrast, the NIPs show a smooth surface and compactes structure.
Ghandra: Journal of Agricultural and Food Chemistry Vol. 42(1994), p. 1303-1305
Orito: Journal of Organic Chemistry Vol. 54(1989), p. 3477-3478
Chen et al.: Analytical Chemistry Vol. 38(2010), p. 559-563.
By contrast, the NIPs show a smooth surface and compactes structure.
Ghandra: Journal of Agricultural and Food Chemistry Vol. 42(1994), p. 1303-1305
Orito: Journal of Organic Chemistry Vol. 54(1989), p. 3477-3478
Chen et al.: Analytical Chemistry Vol. 38(2010), p. 559-563.