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Online since: February 2013
Authors: Chao Ling Song, Feng Kui Yin, Jin Xiao Dou, Jiang Long Yu
Carbonaceous and carbon supported desulfurizing sorbents have highly porous structures, large specific surface area and low production costs and can be widely used as desulfurizer.
Pyrone or alkaline class pyrone structures linking to surface functional groups can greatly contribute to the activated-carbon adsorption for SO2.
Appropriate pore structures and active surface basic sites can greatly improve the desulfurization capability of activated coke.
Liu:Environmental Chemistry.Vol.18(1999) p.205
Fuel, 2013 (In press) [29] Y.M.Yu, R.L.Guo and C.H.Li: Journal of Fuel Chemistry and Technology.Vol.39(2011),p.385.
Pyrone or alkaline class pyrone structures linking to surface functional groups can greatly contribute to the activated-carbon adsorption for SO2.
Appropriate pore structures and active surface basic sites can greatly improve the desulfurization capability of activated coke.
Liu:Environmental Chemistry.Vol.18(1999) p.205
Fuel, 2013 (In press) [29] Y.M.Yu, R.L.Guo and C.H.Li: Journal of Fuel Chemistry and Technology.Vol.39(2011),p.385.
Online since: April 2016
Authors: Hai Lang Lin, Yu Chen, Cong Cong Huang, Pei Dong Fan, Xin Zhao
A novel bipolar green phosphorescence host material, 3,5-bis(4-(9H- phenol- thiazine-9-yl)phenyl)-1,2,4-oxadiazole (PPOXD), was designed and synthesized, and its structure was characterized by means of 1H NMR and 13C NMR.
Moreover, PTZ has a rigid structure, which may enhance the glass transition temperature of PhOLEDs.
In this work, a novel bipolar green host material PPOXD with suitable triplet energy, based on phenothiazine and 1,2,4- oxadiazole, was synthesized. its structure and the photophysical properties and energy-level structure were studied.
The molecular structure and synthetic route of the target compound is outlined in scheme 1.
Scheme 1 Synthetic routes and chemical structure of PPOXD Results and Discussion Morphology stability.
Moreover, PTZ has a rigid structure, which may enhance the glass transition temperature of PhOLEDs.
In this work, a novel bipolar green host material PPOXD with suitable triplet energy, based on phenothiazine and 1,2,4- oxadiazole, was synthesized. its structure and the photophysical properties and energy-level structure were studied.
The molecular structure and synthetic route of the target compound is outlined in scheme 1.
Scheme 1 Synthetic routes and chemical structure of PPOXD Results and Discussion Morphology stability.
Online since: October 2011
Authors: Xu Xiang, Zong Min Tian, Zhi Wei Li
The products present a flower-like micro-/nano-structure assembled with curved nanosheets.
The cavities are formed in the structure due to the interconnection of curved nanosheets.
The large interlayer spacing leads to interesting intercalation chemistry [3, 4] and electrochemical properties [5, 6].
The pH value has little effect on the phase and structure of product.
The phase structure can be flexibly controlled by the alternation of solvent system.
The cavities are formed in the structure due to the interconnection of curved nanosheets.
The large interlayer spacing leads to interesting intercalation chemistry [3, 4] and electrochemical properties [5, 6].
The pH value has little effect on the phase and structure of product.
The phase structure can be flexibly controlled by the alternation of solvent system.
Online since: February 2008
Authors: Ling Hong Guo, Hui Li, Yi Ping Tian, Shan Shan Wei
To obtain new bioactive porous Ti surface, porous structure was first fabricated
on the surface by acid etched.
Because of thin layers with dip-coating technology, the morphology of pore structure pre-treated on Ti surface almost remained.
The pore structure and chemical reaction between Ti and coating during sintering process possibly resulted in the increase of adhesive strength of coating.
Over the past years, the Rietveld method for the analysis of X-ray and neutron powder diffraction patterns was used to obtain refined crystal structure parameters.
Chin: Materials Chemistry and Physics.
Because of thin layers with dip-coating technology, the morphology of pore structure pre-treated on Ti surface almost remained.
The pore structure and chemical reaction between Ti and coating during sintering process possibly resulted in the increase of adhesive strength of coating.
Over the past years, the Rietveld method for the analysis of X-ray and neutron powder diffraction patterns was used to obtain refined crystal structure parameters.
Chin: Materials Chemistry and Physics.
Online since: September 2011
Authors: Jin Shui Wang, Hua Li Jin, Ke Bian
Structure change in insoluble wheat gluten proteins was the principal reason of improvement in their characteristics of enzymatic hydrolysis.
Though cysteine belongs to the minor amino acids of gluten proteins (about 2%), it is extremely important for the structure and functionality of gluten (19).
Hence, controlling sonication is generally used for investigating the structure of glutenin polymers (23).
(Ed.), Wheat—Chemistry and Technology,” St.
Paul American Association of Cereal Chemistry, vol. 1, pp. 159–275, 1988 [19] H.
Though cysteine belongs to the minor amino acids of gluten proteins (about 2%), it is extremely important for the structure and functionality of gluten (19).
Hence, controlling sonication is generally used for investigating the structure of glutenin polymers (23).
(Ed.), Wheat—Chemistry and Technology,” St.
Paul American Association of Cereal Chemistry, vol. 1, pp. 159–275, 1988 [19] H.
Online since: August 2017
Authors: Pattanasuk Chamninok, Ki Seok An, Suttinart Noothongkaew, Orathai Thumthan
This structure was prepared by vacuum filtration and heat-treated at a low temperature of 500°C.
These results correlate with the structure of MWCNTs intercalated in the r-GO sheet.
The crystal structure and the chemical analysis were characterized by using XRD and XPS, respectively.
[12] Dingshan yu and Liming Dai, Self-Assembled Graphene/Carbon Nanotube Hybrid Films for supercapacitors, J. of Physical Chemistry Letters, 1 (2010), 467-470
Kung, Silicon Nanoparticles- Graphene paper composites for Li Ion Battery Anodes, The Royal Society of Chemistry, (2010), S1-S15
These results correlate with the structure of MWCNTs intercalated in the r-GO sheet.
The crystal structure and the chemical analysis were characterized by using XRD and XPS, respectively.
[12] Dingshan yu and Liming Dai, Self-Assembled Graphene/Carbon Nanotube Hybrid Films for supercapacitors, J. of Physical Chemistry Letters, 1 (2010), 467-470
Kung, Silicon Nanoparticles- Graphene paper composites for Li Ion Battery Anodes, The Royal Society of Chemistry, (2010), S1-S15
Online since: February 2012
Authors: Xiu Cheng Zheng, Qiu Ying Huang, Wei Liu, Wen Hao Ye
The effect of Si/Ti molar ratios in the gels on the structure and catalytic efficiency in epoxidation of cyclohexene was discussed in details.
The results showed that all the Ti-SBA-15 materials retained SBA-15 mesoporous structure and exhibited good catalytic activity.
The results indicated that Ti-SBA-15 materials retained the ordered mesoporous structure of SBA-15.
This also suggested that the doping of titanium species retained the typical mesoporous structure of SBA-15.
The results showed that the prepared composite retained the ordered mesoporous structure of SBA-15 and showed good catalytic efficiency in the epoxidation of cyclohexene.
The results showed that all the Ti-SBA-15 materials retained SBA-15 mesoporous structure and exhibited good catalytic activity.
The results indicated that Ti-SBA-15 materials retained the ordered mesoporous structure of SBA-15.
This also suggested that the doping of titanium species retained the typical mesoporous structure of SBA-15.
The results showed that the prepared composite retained the ordered mesoporous structure of SBA-15 and showed good catalytic efficiency in the epoxidation of cyclohexene.
Online since: August 2015
Authors: Lusi Safriani, Risdiana Risdiana, Rova Virgana, Widi Astuti, Ayi Bahtiar, Arief Sjamsulaksan Kartasasmita, Hanif Sulistiya Nusa, Norman Syakir
Characterization of Optical and Structure Properties of Polydimethylsiloxanes
H.
The changes of optical and structure properties of silicone oil after using as a tamponade liquid are assumed to be responsible in emulsification of silicone oil and affect the transmittance quality at visible light spectrum.
It is indicating all samples belong to polydimethylsiloxanes structure.
In case A4 (Fig. 2d), it is found some additional functional groups which is not part of the polydimethylsiloxanes structure.
Acknowledgments We would like to thank Ramdan for his technical support in the fourier transform infrared (FT-IR) spectroscopy at Organic Chemistry of Material Nature Laboratory in Padjadjaran University, Indonesia.
The changes of optical and structure properties of silicone oil after using as a tamponade liquid are assumed to be responsible in emulsification of silicone oil and affect the transmittance quality at visible light spectrum.
It is indicating all samples belong to polydimethylsiloxanes structure.
In case A4 (Fig. 2d), it is found some additional functional groups which is not part of the polydimethylsiloxanes structure.
Acknowledgments We would like to thank Ramdan for his technical support in the fourier transform infrared (FT-IR) spectroscopy at Organic Chemistry of Material Nature Laboratory in Padjadjaran University, Indonesia.
Online since: July 2014
Authors: Xin Li, Ying Ju Yuan, Qing Xiang Cai, Li Hua Wang
Analysis of Low Carbon Development Path for Coal Industry of Multiagent Network Structure under Carbon Tax Background
Lihua Wang a, Xin Li b, Yingju Yuan, Qingxiang Cai
School of Mineral Engineering, China University of Mining and Technology
aWANGHL1979@163.com, bLIXIN.B@163.com
Keywords: Low carbon development path; Multiagent network structure; Carbon tax; Coal industry chain
Abstract.
The network structure diagram of the industry chain can be transferred as Figure 2.
Diagram of industry chain network diagram chain network structure transfer For the convenience of drawing, only part of the parameter change conditions of industry chain connection is indicated in Figure 2.
Being transferred, the parameters of the points in the network diagram are transformed into the arc parameters, which makes it possible to build the model for the whole network structure of the industry chain.
Extension and Risk Control of Coal-Chemistry Industry Chain. 2010 THE SECOND CHINA ENERGY SCIENTIST FORUM,2010:1-3
The network structure diagram of the industry chain can be transferred as Figure 2.
Diagram of industry chain network diagram chain network structure transfer For the convenience of drawing, only part of the parameter change conditions of industry chain connection is indicated in Figure 2.
Being transferred, the parameters of the points in the network diagram are transformed into the arc parameters, which makes it possible to build the model for the whole network structure of the industry chain.
Extension and Risk Control of Coal-Chemistry Industry Chain. 2010 THE SECOND CHINA ENERGY SCIENTIST FORUM,2010:1-3
Online since: August 2013
Authors: Hou Chao Sun
It was shown that tunnel structure can keep stability after advanced little pipe injection grouting is used and supporting parameters and excavation model are changed.
On the general geological structure is located in the southeast edge of jiangnan, indosinian, xuefeng mountain compound arc before middle qi yangshan mountain chain fonts, mountain to both controlled by structure.
The Rock is a block structure and relatively complete, joint fissure development, development space is generally 0.8 ~ 1.2 m, occurrence is given priority to with 220 < 80 DHS group, rock is cut into blocks.
Fracture zone of rock as mylonite, breccia, physics and chemistry are well-developed, the filling of the quartz vein is broken, the fractured multiphase and multistage activities significantly, rock mass structure is loose, and constraints in natural slip slump after excavation.
Calculation model for a total of 41148 entities units, 42784 nodes and 42784 entity unit structure units, 71059 units.
On the general geological structure is located in the southeast edge of jiangnan, indosinian, xuefeng mountain compound arc before middle qi yangshan mountain chain fonts, mountain to both controlled by structure.
The Rock is a block structure and relatively complete, joint fissure development, development space is generally 0.8 ~ 1.2 m, occurrence is given priority to with 220 < 80 DHS group, rock is cut into blocks.
Fracture zone of rock as mylonite, breccia, physics and chemistry are well-developed, the filling of the quartz vein is broken, the fractured multiphase and multistage activities significantly, rock mass structure is loose, and constraints in natural slip slump after excavation.
Calculation model for a total of 41148 entities units, 42784 nodes and 42784 entity unit structure units, 71059 units.