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Online since: July 2012
Authors: Juan Zhang, Di Shun Zhao, Meng Shuai Liu, Jun Pan Li
The Synthesis and Characterization of Ti-MCM-41 by Microwave Radiation Juan Zhanga, Dishun Zhaob,Mengshuai liuc, Junpan Lid College of Chemistry and Pharmaceutical Engineering,Hebei University of Science and Technology, Shijiazhuang, 050018, China azhangj1974@yahoo.com.cn, bshunzha@hebust.edu.cn, cmytomorrow@126.com,dwinterdaffodil@163.com Keywords: Ti-MCM-41; Synthesis; Microwave radiation; Domestic microwave oven Abstract.
But, their morphology was disdordered and wormhole-like, lacking long-range order of MCM-41 structure.
Both samples showed a very similar band at 230 nm attributed to distorted tetrahedral Ti species in the mesoporous structure, which is in good agreement with other titanium-containing MCM-41 samples [12].
Online since: December 2012
Authors: Jian Chun Wu
Fig6 UV-visible spectra of rutile nano-TiO2 nanoparticles Nano-TiO2 is an n-type wide band gap semiconductor its electronic structure by a fully electronic valence electron band (O2p) and electronic empty orbitals form the conduction band (Ti3d) constitute existence of the forbidden band gap.
The ultraviolet resistance of Rutile nano-TiO2 fundamentally attributed its UV absorption caused by the semiconductor structure and high refractive index caused by the high scattering ability.
[10] Cheng Zhongqi, Wang Guangxing, Guei Yin et all, in: Colloid and Interface Chemistry.
Online since: January 2013
Authors: Mikael Syväjärvi, Rositza Yakimova, Valdas Jokubavicius, Philip Hens, Rickard Liljedahl, Peter J. Wellmann, Michl Kaiser
Morphological and optical stability in growth of fluorescent SiC on low off-axis substrates Valdas Jokubavicius1, a*, Michl Kaiser2, b, Philip Hens1, c, Peter Wellmann2, d, Rickard Liljedahl1, e , Rositza Yakimova1, f and Mikael Syväjärvi1, g 1Department of Physics, Chemistry and Biology, Linköping University, SE-58183, Linköping, Sweden 2Department of Materials Science – Materials for Electronics and Energy Technology, University of Erlangen-Nuremberg, Martensstr. 7, 91058 Erlangen, Germany a*valjo@ifm.liu.se, bmichl.kaiser@ww.uni-erlangen.de, cphihe@ifm.liu.se, dpeter.wellmann@ww.uni-erlangen.de, ericli@ifm.liu.se, frosya@ifm.liu.se, gmisyv@ifm.liu.se Keywords: fluorescent SiC, low off-axis substrates, sublimation epitaxy Abstract.
However, the following growth of a nitride stack for NUV emission on top of f-SiC in the final LED structure requires as close as possible to on-axis surfaces.
Results and discussion In the final LED structure the thickness of B and N doped f-SiC material, which converts near ultraviolet light into yellowish white light, should be about 200 µm.
Online since: February 2014
Authors: Ying Guo, Chao Liang Wang, Shi Peng, Jian Jun Shi, Jing Zhang, Wei Li, Yu Xu
Youmei Sun [4] discussed the polyimide structure and electrical properties by MeV ion irradiation and found electrical resistance of treated films decreased by nearly 10 orders of magnitude compared to non-irradiated samples showing the electrical characteristics of the semiconductor.
The emergence of these holes and knots increases the specific surface area together with the formation of free radicals which can significantly improve surface chemistry properties.
MeV ion irradiation of polyimide: chemical structure and electrical transition properties[J].Nuclear Technology in Chinese, 2003, 26(12):931 [5] Ju Hi Hong, Yeonhee Lee, Seunghee Han.
Online since: March 2014
Authors: Xu Dong Sun, Xiao Dong Li, Qi Zhu, J.G. Li
Calcining the nanosheet films at 600 °C for 4h yielded cubic-structured (Y0.95Eu0.05)2O3 films (Fig.2b).
Thus the oxide film shows strong (222) and very weak non-(222) reflections, indicating that it is highly oriented, with [111] direction of the (Y0.95Eu0.05)2O3 structure perpendicular to the substrate surface.
Monge, Layered rare-earth hydroxides: a calss of pillary crystalline compounds for intercalation chemistry, Angew.
Online since: August 2014
Authors: Andri Kusbiantoro, Norbaizurah Rahman
Alkali metal cation plays the role in the construction of structure-forming element by balancing the negative framework charge carried by tetrahedral aluminium [6].
During dissolution process of fly ash particles, some precursors have been involved in the geopolymerization process and construct Al-O-Al, Si-O-Si, and Al-O-Si structures [7].
Lukey, and van Deventer S.J., The effect of partially reacted surfaces on the short-range ordering of geopolymeric gels, Geopolymer, Green Chemistry and Sustainable Development Solutions, (2005), p. 75
Online since: October 2014
Authors: Qi Wang, Wan Qin Wu, Ming Dai
Structure of wearable biosensor system (a) and signal flow diagram of the system(b) Method and Implementation As show in Figure 1(a), the whole system structure mainly composed of MCU, Bluetooth4.0 module and sensor array.
“Practical Methods for Noise Removal: Applications to Spikes, Nonstationary Quasi-Periodic Noise, and Baseline Drift,” Analytical Chemistry, Vol. 81, NO.12, June, 2009, pp.4987-4993
Online since: September 2023
Authors: V. Pandiaraj, R. Thiyagarajan, M. Sivanesh, C. Muguthan, K. Dhineshkumar, G. Sivasakthi
The Al6065 alloy is widely used in various applications, including tubing for furniture, railway and bus structures, pylons, platforms, and pipelines.
Carbon nanotubes (CNTs) are a one-dimensional structure of carbon atoms arranged in a tube-like structure.
Graphene is a two-dimensional structure of carbon atoms arranged in a honeycomb lattice.
Surface modification involves altering the surface chemistry, topography, and morphology of the material to improve its tribological properties.
Jain, “Influence of surface modified graphene oxide on mechanical and thermal properties of epoxy resin,” Oriental Journal of Chemistry, vol. 34, no. 3, pp. 1597–1603, 2018, doi: 10.13005/ojc/340353
Online since: August 2021
Authors: Deresh Ramjugernath, Samuel A. Iwarere, Emmanuel Gwanzura, Oluyemi O. Awolusi, Sheena Kumari
Radiation Physics and Chemistry (1977), 12 (1978) 35-50
Fridman, Plasma Chemistry, Cambridge University Press, 2008
Okabe, Influences of infaunal burrows on the community structure and activity of ammonia-oxidizing bacteria in intertidal sediments.
BRISSET, Aqueous-phase chemistry of electrical discharge plasma in water and in gas-liquid environments.
Plasma Chemistry and Catalysis in Gases and Liquids, 1 (2012) 243-308
Online since: July 2012
Authors: Ipsita A. Banerjee, Karl R. Fath, Nako Nakatsuka, Nazmul H. Sarker, Ipsita A. Banerjee
Quideau; Chemistry and Biology of Ellagitannins - An underestimated class of bioactive plant polyphenols, World Scientific Publishing Co.
Fratzl; Collagen: Structure and Mechanics, Springer, New York, (2008)
Yamamuro; Solutions able to reproduce in vivo surface-structure changes in bioactive glass-ceramic A-W, J.
Schreiber; Structure and growth of self-assembling monolayers, Prog.
Uskoković; Crystal Structure of Hydroxyapatite Nanorods Synthesized by Sonochemical Homogenous Precipitation, Cryst.