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Online since: June 2011
Authors: Xiao Hui Bai, Dian Zhong Wen
Crossbar Pt nanowires are basic structure of memristor,so the study on fabrication Pt nanowires for memristor is very important.
Experimental results and discussion 1 Preparative technique of AAO template Choose 99.999% of nonferrous metal research laboratory in Peking pure aluminum sheet, put to go into to anneal in the annealing furnace of being full of the argon for 2-5 hours first, make the inner structure of aluminium the re-crystallization, regenerate is long, can wipe - out aluminum sheet internal stress at the same time afresh.
In the whole growth process, from magnetic force stirrer rabbling with assure the blance of electrolyte concentration, and the Heng of electroanalysis temperature settles.Fig3 gave the electrochemistry deposite to grow the setting drawing of the nanowire Because the side outside the AAO template exists a countercheck layer, the countercheck layer has a rectification action to the DC characteristic, so making use of direct current chemistry the deposition will take place the Pt ion of electroanalysis the overlay is in the AAO template surface layer but can not in great quantities enter hole diameter, forming a hard shell in the surface.
Such as Fig 2 showed Fig 2 DC chemistry deposites the Pt nanowire surface SEM photograph(-5 V ,10 mins) 电压-5V 时间10min This literary grace is used an alternating current chemistry deposition method for the sake of assuring the growth mass of the nanowire, grow velocity decelerate as far as possible, so the semaphore frequency controls at the 30 Hzs in.
(b) (a) Fig 5 Pretreated AAO template SEM photograph (a)×5000 (b)×10000 Conclusions and Perspectives Using electrolyte compose method Pt nanowires act as nano-structure wires, changing line contact to point contact, which will enhance quantum effect [8].
Experimental results and discussion 1 Preparative technique of AAO template Choose 99.999% of nonferrous metal research laboratory in Peking pure aluminum sheet, put to go into to anneal in the annealing furnace of being full of the argon for 2-5 hours first, make the inner structure of aluminium the re-crystallization, regenerate is long, can wipe - out aluminum sheet internal stress at the same time afresh.
In the whole growth process, from magnetic force stirrer rabbling with assure the blance of electrolyte concentration, and the Heng of electroanalysis temperature settles.Fig3 gave the electrochemistry deposite to grow the setting drawing of the nanowire Because the side outside the AAO template exists a countercheck layer, the countercheck layer has a rectification action to the DC characteristic, so making use of direct current chemistry the deposition will take place the Pt ion of electroanalysis the overlay is in the AAO template surface layer but can not in great quantities enter hole diameter, forming a hard shell in the surface.
Such as Fig 2 showed Fig 2 DC chemistry deposites the Pt nanowire surface SEM photograph(-5 V ,10 mins) 电压-5V 时间10min This literary grace is used an alternating current chemistry deposition method for the sake of assuring the growth mass of the nanowire, grow velocity decelerate as far as possible, so the semaphore frequency controls at the 30 Hzs in.
(b) (a) Fig 5 Pretreated AAO template SEM photograph (a)×5000 (b)×10000 Conclusions and Perspectives Using electrolyte compose method Pt nanowires act as nano-structure wires, changing line contact to point contact, which will enhance quantum effect [8].
Online since: December 2012
Authors: Tamara Basova, Aliye Aslı Esenpinar, Sinem Tuncel, Mahmut Durmuş, Ayşe Gül Gürek, Vefa Ahsen
Thin films of liquid crystalline phthalocyanines and their its composites with single-walled carbon nanotubes: properties and alignment
BASOVA Tamara1,a, ESENPINAR Aliye Aslı2, TUNCEL Sinem3,
DURMUŞ Mahmut3, GÜREK Ayşe Gül3, AHSEN Vefa3,4
1Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentiev Ave., Russia
2Kırklareli University, Department of Chemistry, 39100, Kırklareli, Turkey
3Gebze Institute of Technology, Department of Chemistry, Gebze, Kocaeli, Turkey
4TUBITAK-Marmara Research Center, Materials Institute, Gebze, Kocaeli, Turkey
abasova@niic.nsc.ru
Keywords: Carbon nanotubes, Hybrid materials, Metallo phthalocyanines, Liquid crystals.
There has been growing interest in the field of dispersion of CNT in both thermotropic and lyotropic liquid crystal phases to obtain the ordered structures [5-7].
Therefore, a pronounced improvement of electrical properties of CNT incorporated into the ordered LC structures is expected.
The current-voltage (I-V) characteristics of CuPcR4 films were measured in the direction parallel to the films plane using interdigitated structures (Fig. 4).
There has been growing interest in the field of dispersion of CNT in both thermotropic and lyotropic liquid crystal phases to obtain the ordered structures [5-7].
Therefore, a pronounced improvement of electrical properties of CNT incorporated into the ordered LC structures is expected.
The current-voltage (I-V) characteristics of CuPcR4 films were measured in the direction parallel to the films plane using interdigitated structures (Fig. 4).
Online since: July 2012
Authors: Jiang Zhu, Xiu Li Wang
China
2 Center for Degradable and Flame-Retardant Polymeric Materials; Key Laboratory of Green Chemistry and Technology (MoE), College of Chemistry, Sichuan University, Chengdu 610064, China
aJiangzhu415@163.com, bxiuliwang1@163.com
Keywords: Hydroxyethyl cellulose; P-dioxanone; Graft copolymer; Ionic liquid
Abstract.
It could be ascribed to the breakage of original structure of EC after grafting PPDO chains.
The authors also acknowledge the Center for Degradable and Flame-Retardant Polymeric Materials and the Key Laboratory of Green Chemistry and Technology (MoE) of Sichuan University for the supplement of PDO monomer.
It could be ascribed to the breakage of original structure of EC after grafting PPDO chains.
The authors also acknowledge the Center for Degradable and Flame-Retardant Polymeric Materials and the Key Laboratory of Green Chemistry and Technology (MoE) of Sichuan University for the supplement of PDO monomer.
Online since: September 2011
Authors: Hai Jun Wang, Guang Shan Zhu
Fluorescence property of Rhodamine B encapsulated in the channels of MOF-5 crystal1
Haijun Wanga , Guangshan Zhu b
a Department of Pharmacy, b State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry
Qiqihar Medical University and Jilin University
Qiqihar, Heilongjiang Province, China and Changchun, Jilin Province, China
wanghaijun0417@yahoo.com.cn and zhugs@mail.jlu.edu.cn
Keywords: Metal-Organic Frameworks; Laser dye; Rhodamine B; Fluorescence
Abstract.
MOFs with rigid open frameworks not only possess porous crystaline structures similar to those of inorganic microporous materials, zeolites, but also exhibit favorable adsorption of many gas and organic liquid molecules [5-7].
Ferey, “A hybrid solid with giant pores prepared by a combination fo targeted chemistry, simulation and powder diffraction,” Angew.
MOFs with rigid open frameworks not only possess porous crystaline structures similar to those of inorganic microporous materials, zeolites, but also exhibit favorable adsorption of many gas and organic liquid molecules [5-7].
Ferey, “A hybrid solid with giant pores prepared by a combination fo targeted chemistry, simulation and powder diffraction,” Angew.
Online since: February 2014
Authors: Chun Hong Nie, Bao Hui Wang
Electrochemical Oxidation of o-Amiophenol in the presence of NaCI for wastewater treatment
Chunhong Nie, Baohui Wang
College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing, China,163318
chunhongnie@126.com
Keywords: electrochemical oxidation, o-Aminophenol, Ti/IrO2-Ta2O5 , Ti/IrO2-Ta2O5-SnO2 ,Ti/IrO2 .
They can be mainly classified as (a) complete oxidation of the contaminants to CO2, water, and other inorganic products, (b) modification or alteration of the chemical structures of the organic molecules to make the separation well or easier, and (c) partial destruction of the molecules to make it less toxic or more biodegradable.
Chemistry of the process.
China (project No. 21376049) and Provincial Key Laboratory of Oil &Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, China References [1] A.
They can be mainly classified as (a) complete oxidation of the contaminants to CO2, water, and other inorganic products, (b) modification or alteration of the chemical structures of the organic molecules to make the separation well or easier, and (c) partial destruction of the molecules to make it less toxic or more biodegradable.
Chemistry of the process.
China (project No. 21376049) and Provincial Key Laboratory of Oil &Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, China References [1] A.
Online since: November 2012
Authors: Da Fang Fu, Shu Jiang Miao
Study of GRAL-C
One major challenge for modelling NO-NO2-O3 chemistry in a Lagrangian framework is, on the one hand, the treatment of chemical processes on the counting grid and particle redistribution, and on the other hand, the potential for interaction with “background” species such as O3, VOCs etc.
In general, a Lagrangian model is more flexible in simulating the geometry and location of sources exactly compared with an Eulerian model based on a fixed grid structure.
A hybrid Eulerian-Lagrangian approach capturing NO-NO2-O3 chemistry has been discussed and been chosen to combine with GRAL35TM to develop and evaluate the module dealing with dispersion of NOx from tunnel portals.
Uhrner, Development and evaluation of GRAL-C dispersion model, a hybrid Eulerian-Lagrangian approach capturing NO-NO2-O3 chemistry, Atmospheric Environment, 45 (2011) 839-847
In general, a Lagrangian model is more flexible in simulating the geometry and location of sources exactly compared with an Eulerian model based on a fixed grid structure.
A hybrid Eulerian-Lagrangian approach capturing NO-NO2-O3 chemistry has been discussed and been chosen to combine with GRAL35TM to develop and evaluate the module dealing with dispersion of NOx from tunnel portals.
Uhrner, Development and evaluation of GRAL-C dispersion model, a hybrid Eulerian-Lagrangian approach capturing NO-NO2-O3 chemistry, Atmospheric Environment, 45 (2011) 839-847
Online since: April 2014
Authors: Zoltan Major, Matei C. Miron, Umut D. Cakmak
Arruda, 2000, Journal of Rubber Chemistry & Technology, Vol 73, 504-524
Merckmann and Verron, 2006, Journal of Rubber Chemistry & Technology, Vol 79, 835-858
Chemistry and Technology 1995, 68:435 [7] W.
Major, Applicability of Displacement Controlled Fatigue Test Methods for Compliant Structures.
Merckmann and Verron, 2006, Journal of Rubber Chemistry & Technology, Vol 79, 835-858
Chemistry and Technology 1995, 68:435 [7] W.
Major, Applicability of Displacement Controlled Fatigue Test Methods for Compliant Structures.
Online since: October 2008
Authors: R.S.C. Lima, Marcus Vinícius Lia Fook, Thiago Bizerra Fideles, A.C.B.M. Fook, Sara Verusca de Oliveira, W.P.F. Barbosa
These characteristics result from the nature of chemistry link and crystal structure.
In: The chemistry of medical and dental materials.
Cambridge: Royal Society of Chemistry (2002) [9].
In: The chemistry of medical and dental materials.
Cambridge: Royal Society of Chemistry (2002) [9].
Synthesis, Properties and Application in Optical Memory of a New Type Diarylethene with Benzene Ring
Online since: May 2011
Authors: Pei Jian Yan, Shi Qiang Cui, Shou Zhi Pu
Synthesis, properties and application in optical memory of a new type diarylethene with benzene ring
Peijian Yan, Shiqiang Cui, Shouzhi Pu*
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P.R.China
pushouzhi@tsinghua.org.cn
Key words: Diarylethene; Benzene ring; Photochromism; Fluorescence; Optical memory.
The structure of 1o was confirmed by NMR and IR. 1H NMR (400 MHz, CDCl3, TMS): δ 1.06 (t, 3H, J = 8.0 Hz, –CH3), 1.99 (s, 3H, –CH3), 2.50–2.56 (m, 1H, –CH2), 2.67–2.75 (m, 1H, –CH2), 6.97 (d, 1H, J = 8.0 Hz, benzene–H), 7.04 (t, 1H, J = 8.0 Hz, benzene–H), 7.12 (d, 1H, J = 8.0 Hz, benzene–H), 7.14–7.17 (m, 1H, benzene–H), 7.20 (d, 1H, J = 8.0 Hz, benzene–H), 7.26 (t, 1H, J = 8.0 Hz, benzene–H), 7.50 (d, 1H, J = 8.0 Hz, benzene–H), 7.61(d, 1H, J = 8.0 Hz, benzene–H); 13C NMR(100 MHz, CDCl3, TMS): δ 15.70, 19.98, 22.98, 118.10, 122.19, 122.40, 124.32, 124.63, 125.67, 126.87, 128.72, 129.81, 130.62, 136.91, 138.19, 149.96; IR (v, KBr, cm-1): 750, 864, 982, 1020, 1070, 1138, 1194, 1273, 1342, 1400, 1456, 1622, 1672, 2976.
A: Chemistry 197 (2008), p. 415
A: Chemistry 194 (2008), p. 333
The structure of 1o was confirmed by NMR and IR. 1H NMR (400 MHz, CDCl3, TMS): δ 1.06 (t, 3H, J = 8.0 Hz, –CH3), 1.99 (s, 3H, –CH3), 2.50–2.56 (m, 1H, –CH2), 2.67–2.75 (m, 1H, –CH2), 6.97 (d, 1H, J = 8.0 Hz, benzene–H), 7.04 (t, 1H, J = 8.0 Hz, benzene–H), 7.12 (d, 1H, J = 8.0 Hz, benzene–H), 7.14–7.17 (m, 1H, benzene–H), 7.20 (d, 1H, J = 8.0 Hz, benzene–H), 7.26 (t, 1H, J = 8.0 Hz, benzene–H), 7.50 (d, 1H, J = 8.0 Hz, benzene–H), 7.61(d, 1H, J = 8.0 Hz, benzene–H); 13C NMR(100 MHz, CDCl3, TMS): δ 15.70, 19.98, 22.98, 118.10, 122.19, 122.40, 124.32, 124.63, 125.67, 126.87, 128.72, 129.81, 130.62, 136.91, 138.19, 149.96; IR (v, KBr, cm-1): 750, 864, 982, 1020, 1070, 1138, 1194, 1273, 1342, 1400, 1456, 1622, 1672, 2976.
A: Chemistry 197 (2008), p. 415
A: Chemistry 194 (2008), p. 333
Online since: September 2016
Authors: Jing Liu, Yu Zhang
Numerical Simulations and Experimental Investigations on Lead Iodide Single Crystals Growth
LIU Jing1, a * and ZHANG YU 2, b
1Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang, 621908, China
2New Material Research Center of Sichuan, Chengdu, 610200, China
aliujinghikaru@126.com, bzhangyu0133@163.com
Keywords: Numerical simulation, PbI2, single crystal
Abstract.
The results showed that the PbI2 crystal is indeed a single crystal with 2H structure.
Acknowledgement This work is sponsored by the subject development foundation of Science and Technology on Surface Physics and Chemistry Laboratory (NO.
Journal of Materials Chemistry C, 2015, 3: 4402
The results showed that the PbI2 crystal is indeed a single crystal with 2H structure.
Acknowledgement This work is sponsored by the subject development foundation of Science and Technology on Surface Physics and Chemistry Laboratory (NO.
Journal of Materials Chemistry C, 2015, 3: 4402