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Online since: September 2018
Authors: Suparin Chaiklangmuang, Thapanee Sarakonsri, Takuya Masuda, Yothin Chimupala, Thanapat Autthawong, Viratchara Laokawee, Nutpaphat Jarulertwathana
To solve these problems, numerous efforts have been developed such as using these metals in nanostructure [6-7], porous structure [8], three-dimensional network structure [9-10] and coated with carbon [11].
From the SEM results, it could be seen that the structures of both R10Si10Sn/NrGO and R20Si20Sn/NrGO contained the structure of NrGO which was wrinkled and rippled sheets of exfoliated graphite as the main phase and small-size paritcles of Si and Sn dispersed and inserted in between the plans of NrGO sheet.
Wu, sandwich structure of graphene-protected silicon/carbon nanofibers for litjium-ion battey anodes, Electrochim.
Liu, Three-dimensional network structure of Silicon-graphene-polyaniline composites as high performance anodes for lithium-ion batteries, Electrochim.
Hu, A novel nano-structured interpenetrating phase composite of Silicon/graphite-tin for lithium-ion batteries anode materials, J.
From the SEM results, it could be seen that the structures of both R10Si10Sn/NrGO and R20Si20Sn/NrGO contained the structure of NrGO which was wrinkled and rippled sheets of exfoliated graphite as the main phase and small-size paritcles of Si and Sn dispersed and inserted in between the plans of NrGO sheet.
Wu, sandwich structure of graphene-protected silicon/carbon nanofibers for litjium-ion battey anodes, Electrochim.
Liu, Three-dimensional network structure of Silicon-graphene-polyaniline composites as high performance anodes for lithium-ion batteries, Electrochim.
Hu, A novel nano-structured interpenetrating phase composite of Silicon/graphite-tin for lithium-ion batteries anode materials, J.
Online since: May 2011
Authors: Gui Yang Yan, Liu Ping Zheng, Chen Feng, Meiu Qin Zheng
Photocatalytic Degradation of Eosin B by ZnS Nanoparticles
under Visible Light
CHEN Feng1, ZHENG Liu-ping2, YAN Gui-yang2,3,* and ZHENG Mei-qin2
1Department of Chemistry, Ningde Normal University, Ningde, China, 352100;
2College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, China, 350007;
3State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou, China, 350002
*Corresponding Author: Prof.
Fig. 1 The molecular structure of Eosin B The semiconductive material is more and more nanostructured.
Characterization of physicochemical properties of the catalyst Crystal structure of ZnS was checked by using a Philips X’Pert MPD X-ray diffractometer with Cu Kα radiation.
All the reflection peaks can be indexed to the structure of ZnS, in agreement with the literature.
Chinese Journal of Inorganic Chemistry. 2002, 18(12): 1229-1232
Fig. 1 The molecular structure of Eosin B The semiconductive material is more and more nanostructured.
Characterization of physicochemical properties of the catalyst Crystal structure of ZnS was checked by using a Philips X’Pert MPD X-ray diffractometer with Cu Kα radiation.
All the reflection peaks can be indexed to the structure of ZnS, in agreement with the literature.
Chinese Journal of Inorganic Chemistry. 2002, 18(12): 1229-1232
Online since: January 2013
Authors: Xiao Li Zhou, Yi Ming Zhou, Ying Xiao, Ning Liu, Yue Chen
Germination is known to cause important for the purpose of improving its nutritional value, reducing anti-nutritional effects, and softening the kernel structure [8,9].
The content and structure of buckwheat starch is one of key factors for quality of buckwheat production, but the effects of germination on physicochemical and structure of tartary buckwheat starch have never been reported.
Ikeda, K.Arioka, S .Fujii, et al.: Cereal Chemistry Vol. 61 (1984), p. 236
Rahma: Food Chemistry, Vol. 23 (1987), p. 257
Hsu, et al: Cereal Chemistry, Vol. 57 (1980), p. 390
The content and structure of buckwheat starch is one of key factors for quality of buckwheat production, but the effects of germination on physicochemical and structure of tartary buckwheat starch have never been reported.
Ikeda, K.Arioka, S .Fujii, et al.: Cereal Chemistry Vol. 61 (1984), p. 236
Rahma: Food Chemistry, Vol. 23 (1987), p. 257
Hsu, et al: Cereal Chemistry, Vol. 57 (1980), p. 390
Online since: January 2005
Authors: Shi Xi Zhao, Qiang Li, Feng Bing Song
In this work, 0.67PMN-0.33PT powders with single-phase perovskite structure
were synthesized successfully by molten salt method.
The crystal structure of the resulting PMN-PT powders was determined using X-ray diffraction with CuKα radiation (λ=0.15405 nm) at room temperature over the angular range of 10°≤2θ≤70° by step of 0.02°.
While for the CMO, stable pyrochlore phase Pb3Nb4O13 was produced firstly, which had high apparent activation energy and was difficult to transform into perovskite phase structure [8].
Chen:Journal of Physics and Chemistry of Solids, Vol.61 (2000), p.197
Yao: Materials Chemistry and Physics, Vol.64 (2000),p.1
The crystal structure of the resulting PMN-PT powders was determined using X-ray diffraction with CuKα radiation (λ=0.15405 nm) at room temperature over the angular range of 10°≤2θ≤70° by step of 0.02°.
While for the CMO, stable pyrochlore phase Pb3Nb4O13 was produced firstly, which had high apparent activation energy and was difficult to transform into perovskite phase structure [8].
Chen:Journal of Physics and Chemistry of Solids, Vol.61 (2000), p.197
Yao: Materials Chemistry and Physics, Vol.64 (2000),p.1
Online since: January 2015
Authors: Qing Wang, Xi Cheng, Ya Hui Zhang
These seeds then act as catalytic sites where PbSe, formed by decomposition of bis[N,N-diethyl-N′-naphthoylselenourea]lead(II), adsorbs and grows into 1D NW structures.
Prospects Metal selenide nanostructures have novel properties and functions corresponding to their unique structures.
Sarma, The Journal of Physical Chemistry Letters Vol. 1 (2009), p. 304 [2] L.
Gupta, The Journal of Physical Chemistry C Vol. 114 (2010), p. 2551 [4] X.
Gao, The Journal of Physical Chemistry C Vol. 113 (2009), p. 10981 [5] F.
Prospects Metal selenide nanostructures have novel properties and functions corresponding to their unique structures.
Sarma, The Journal of Physical Chemistry Letters Vol. 1 (2009), p. 304 [2] L.
Gupta, The Journal of Physical Chemistry C Vol. 114 (2010), p. 2551 [4] X.
Gao, The Journal of Physical Chemistry C Vol. 113 (2009), p. 10981 [5] F.
Online since: January 2025
Authors: Imran Hafeez, Syed Shabih ul Hassan, Tausif Pattal, Usman Azeem
Mineral chemistry, crystal structure, and physical properties (including optical properties) are studied in mineral chemistry and mineralized artifacts by mineral chemistry and mineralized artifacts.
Considering that this pavement structure is the most commonly used pavement structure on China's highways, it is noteworthy that this was chosen for study, so it may offer some ideas for designing an asphalt mixture that reduces rutting distress and increases pavement life.
[3] Zagalo Al-hadj, Rochette, Djiddi (2022), “Petrography and Geotechnical Characteristics of Aggregates from the Oyo and Mongo Massifs (Chad): Implications for the Construction of Structures” Geosciences 12,301
Considering that this pavement structure is the most commonly used pavement structure on China's highways, it is noteworthy that this was chosen for study, so it may offer some ideas for designing an asphalt mixture that reduces rutting distress and increases pavement life.
[3] Zagalo Al-hadj, Rochette, Djiddi (2022), “Petrography and Geotechnical Characteristics of Aggregates from the Oyo and Mongo Massifs (Chad): Implications for the Construction of Structures” Geosciences 12,301
Online since: July 2012
Authors: Yuan Cao, Ping Li, Ya Tao Wang
Photoluminescent properties of Al doped ZnO by microwave induced combustion method
Yuan Cao 1, a, Yatao Wang 2,b and Ping Li3,c
1lCollege of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
2College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
3College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
acaoyuan@cqu.edu.cn, bwytqy2008@163.com, ccquliping@sina.com.
Introduction In recent years, nano zinc oxide has been widespread concern due to its electronic structure characteristics and potential applications.
Controling of the combustion process synthesized small particle size, distribution, crystalline phase complete, the fluorescence properties of wurtzite structure of Al-doped nano-zinc oxide.
The detailed structure and morphology of the produced powder were determined by a scanning electron microscope (SEM, JEOL, JSM-6490LV).
On the other hand, the green band emission is thought to be related to the intrinsic defects, in particular, the singly ionized oxygen vacancies in the ZnO structure [15].
Introduction In recent years, nano zinc oxide has been widespread concern due to its electronic structure characteristics and potential applications.
Controling of the combustion process synthesized small particle size, distribution, crystalline phase complete, the fluorescence properties of wurtzite structure of Al-doped nano-zinc oxide.
The detailed structure and morphology of the produced powder were determined by a scanning electron microscope (SEM, JEOL, JSM-6490LV).
On the other hand, the green band emission is thought to be related to the intrinsic defects, in particular, the singly ionized oxygen vacancies in the ZnO structure [15].
Online since: October 2014
Authors: Klara V. Kotsareva, Elena A. Trusova
In the last decade, wet chemistry methods of synthesis of ultradispersed raw products recognized as the most cost-effective, easy in industrial realization and environment friendly.
Structure directed compounds were selected from the technologically acceptable ones too.
Modeling of the gel structure is carried out by replacing one structure directing agent to another, as well as by varying the molar proportions among the components of the reaction mixture.
Zagainov, Wet-chemistry processing of powdery raw materials for high-tech ceramics, Nanoscale Research Letters. 7 (2012) 58
Kam in: Physics, chemistry and application of nanostructures, World Scientific Publishing Co.
Structure directed compounds were selected from the technologically acceptable ones too.
Modeling of the gel structure is carried out by replacing one structure directing agent to another, as well as by varying the molar proportions among the components of the reaction mixture.
Zagainov, Wet-chemistry processing of powdery raw materials for high-tech ceramics, Nanoscale Research Letters. 7 (2012) 58
Kam in: Physics, chemistry and application of nanostructures, World Scientific Publishing Co.
Online since: July 2014
Authors: Qiang Song, Jian Hui Zhu, Xiao Yan Zhang
Strength Development and Pore Structure of
Alkali-Activated Slag Cement in Bittern Environment
Qiang Song1, a,Jianhui Zhu1,b ,Xiaoyan Zhang1,c
1college of Materials & mineral resources, Xi’an University of Architecture & Technology, NO.13,Yanta Road, Xi’an, Shannxi,710055, China
asq_80@126.com, bzjh2480@126.com, czxyian@163.com
Keywords: Alkali-activated cement, Bittern environment, Strength development, Pore structure
Abstract.
Curing the AAS cement in bittern environment leads to a reduction in the total pore volume and to a refinement of the pore structures.
Several studies have reported the mechanical performance of alkali activated slags with respect to the source material and the activating agent chemistry, activation processes, mixture parameters, and curing conditions.
In this study, the differential distribution curve (Fig. 6) are presented in order to estimate and evaluate the pore structure of OPC and AAS cement.
Curing the AAS cement in bittern environment leads to a reduction in the total pore volume and to a refinement of the pore structures.
Curing the AAS cement in bittern environment leads to a reduction in the total pore volume and to a refinement of the pore structures.
Several studies have reported the mechanical performance of alkali activated slags with respect to the source material and the activating agent chemistry, activation processes, mixture parameters, and curing conditions.
In this study, the differential distribution curve (Fig. 6) are presented in order to estimate and evaluate the pore structure of OPC and AAS cement.
Curing the AAS cement in bittern environment leads to a reduction in the total pore volume and to a refinement of the pore structures.
Online since: October 2007
Authors: Yuichi Ikuhara, Takahisa Yamamoto, S.Y. Choi, Yukio Sato, Naoya Shibata, Teruyasu Mizoguchi
Grain Boundary Atomic Structures in SrTiO3 and BaTiO3
T.
The unit structure, however, has some distortion in case of SrTiO3.
Namely, the two grain boundary structures in the figure are the same even if the cooling rates are different.
In this field, it is very important to understand defect chemistry from a viewpoint of their electronic states, e.g., localized quantum structures caused by point defects.
Meanwhile, such defect chemistry in a bulk also gives a huge influence on grain boundary atomic structures and surface structures.
The unit structure, however, has some distortion in case of SrTiO3.
Namely, the two grain boundary structures in the figure are the same even if the cooling rates are different.
In this field, it is very important to understand defect chemistry from a viewpoint of their electronic states, e.g., localized quantum structures caused by point defects.
Meanwhile, such defect chemistry in a bulk also gives a huge influence on grain boundary atomic structures and surface structures.