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Online since: January 2014
Authors: Mat Johar Abdullah, Husam S. Al-Salman
The results showed that Co2+ replaces Zn2+ in the ZnO lattice without changing the wurtzite structure.
All of the samples exhibit a hexagonal phase with wurtzite structure according to ICSD No.067848.
The structure and optical properties of ZnO nanocrystals dependence on Co-doping levels, J.
Preparation and characterization of Co-doped ZnO nanomaterials, Materials Chemistry and Physics, 114, 279-282
Structure and magnetism of cobalt-doped ZnO thin films, New J.
Online since: July 2012
Authors: Wen Wei Zang, Chao Liu, Yi Feng Yu, Yan Yan Wang, Ai Bing Chen, Man Ling Jia, Bo Li
HRTEM shows that this carbon material with nanoonions structure.
In particular, in situ doping of nitrogen using nitrogen-containing ILs can realize a homogeneous incorporation of nitrogen into the carbon material with a controlled chemistry.
Fig.2 shows the HRTEM images of the pore morphology and structure of the graphite mesoporous carbon via the nanocasting technique.
It also can be observed that imperfect structures are present, which have been verified by the presence of split-level structure.
The carbon material with a nitrogen content of 4.2 wt% has graphite onion-like structure.
Online since: February 2014
Authors: Xu Chun Song, Ying Zheng, Yang Rong Yao
Catalytic degradation of phenol by γ-Fe2O3 nanoparticles Yang Rong Yao1, a, Ying Zheng 1,b and Xu Chun Song1,c 1Department of Chemistry, Fujian Normal University, Fuzhou 350007, P.
The results show that the phase structure of the nanoparticles is γ-Fe2O3 with the particle size ranging from 40 to 50 nm.
Results and discussion The phase structure and the phase composition of the products were examined by XRD.
Online since: December 2006
Authors: Ja Choon Koo, Young Kwan Lee, Jae Do Nam, Hyouk Ryeol Choi, Mi Suk Cho, K.Xuyen Phan
Lee 6,f 1, 2, 3,6 School of Applied Chemistry, Sungkyunkwan University 4,5 School of mechanical engineering, Sungkyunkwan University Suwon, Korea 440-746 a pkxuyen@skku.edu bemail:mstop21@skku.edu, cemail:jdnam@skku.edu, d email:hrchoi@me.skku.ac.kr, eemail:jckoo@me.skku.ac.kr, correspondence- f email:yklee@skku.edu Keywords: polydivinylbenzene, core-shell, gold-phenanthroline complex Ed. - Note - Please verify the technical meaning of the edited document.
The structure of the PDVB/Au core-shell material was characterized by SEM, XPS, and FT-IR.
Up to now, several routes have been investigated for the synthesis of such core-shell structures.
Online since: October 2006
Authors: Manabu Enoki, Shoichi Nambu, Yoshihiko Tsunawaki
Reliability of structures is an important task to ensure the ease and safety of our life, and further development of non-destructive evaluation for structures such as bridges and tunnels is required.
Some fatigue sensors that consist of sacrificed specimen have been developed to evaluate the fatigue damage of structures such as fatigue cyclic number and residual lifetime.
Introduction Reliability of structures is an important issue to ensure the ease and safety of our life, and further development of non-destructive evaluation for structures such as bridges and tunnels is required.
Since this smart patch is removable, crack length and AE can be measured�after removal from structure.
Acknowledgment The present research is supported in part by a Grant for 21st Century COE Program "Human-Friendly Materials based on Chemistry" from the Ministry of Education, Culture, Sports, Science, and Technology of Japan.
Online since: October 2016
Authors: D.A. Morton-Blake
Baughman, The structure of metallic complexes of polyacetylene with alkali metals, J.
Kumari-Doyle, The motion of an ion in a synthetic molecular channel, Computational and Theoretical Chemistry 1008 (2013) 74-82
Howell, Structures of molecules and crystals of fluorocarbons, Nature, 174 (1954) 549-551; A.
Dexpert, First evidence of crystalline structure in conducting polythiophene, J.
Quantum Chemistry 90 (2002) 445
Online since: October 2008
Authors: R.M. Mohanty, K. Balasubramanian
With respect to composition variation, the variations of the crystal structure of carbides are not as prominent as those for other ceramics.
So the scope of having a large number of structures and composition of boron carbide increases [30].
carbon oxides influence the chemistry of fissions products.
Similarly the structure of the boron carbide is not only rhombohedral but can be tetragonal and orthorhombic.
Gabunia : Journal of Solid State Chemistry,Vol.177(2004),p.600
Online since: November 2014
Authors: Syara Kassim, S. Padmanabhan, J. McGrath, M.E. Pemble
Preparation of their inverted structures has therefore been envisaged as an alternative way to investigate further the optical properties of such 3D structures.
Unfortunately it is often the case that successful experimental investigations of inverted structures are hampered due to the difficulty in manufacturing robust 3D inverted PC structures with long range order.
Silica inverse opal structure with different magnifications.
The silica inverse opal exhibits a blue shift in the stop band as compared to that of the bare PMMA opal which we attribute to a reduction in effective refractive index and a reduction in the effective lattice spacing of the layers of voids in the inverted structure as compared to that of the layers of spheres in the bare PMMA structure.
[8] Fudouzi H., Optical properties caused by periodical array structure with colloidal particles and their applications.
Online since: November 2012
Authors: Priyanka Parmar, Rakesh Bajpai, Pragyesh Agrawal
The SEM micrographs exhibit a dense and more ordered structure of PPy/MMT composites.
These peaks suggest the development of more polycrystalline structure.
The successful incorporation of polypyrrole in the clay structure is shown by the FTIR spectra.
The variation of conductivity can be explained on the basis of formation of layered structures.
Whittingham, Intercalation Chemistry, New York: Academic Press, 1982
Online since: October 2011
Authors: Xu Ping Qin, Fang Zhao, Sheng Yu Feng
The reason of the high mechanical performance in the given direction is that the hydrogels are crosslinked by HRM as a new crosslinking agent instead of the conventional crosslinking agents and these nanoparticles can self-assemble into anisotropic structures and the structure can be stabilized by free radical polymerization.
This well-defined structure of the anisotropic hydrogels was very like biological muscles.
According to Cai et al. [7], vinyl-particles like HRM can self-assemble into anisotropic structures and the structure of a vinyl-particle assembly can be stabilized by free radical polymerization.
It is attributed to the unique structure of the HRM hydrogels using mltifunctional crosslinking agents which contain reactive C=C bonds [5].
It is suggested that the three-dimensional network structure was formed with high crosslinking density.