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Online since: December 2020
Authors: Haia Aldosari
Structure and electrical properties of the composites, Polymer.24(2001) 9293
Thomas, The structure and reactivity of graphene oxide, Ph.D.
Klinowski, Structure of Graphite Oxide Revisited, Journal of Physical Chemistry B. 23(1998) 4477–4482
Chhowalla, Insulator to semimetal transition in graphene oxide, Journal of Physical Chemistry C. 35(2009) 15768–15771
Chen, Reinforcement and interphase of polymer/graphene oxide Nanocomposites, Journal of Materials Chemistry. 8(2012) 3637-3646
Online since: October 2002
Authors: Nicolae Crainic, António Torres Marques
They are the following: nano electronic, electronic quantic and electronic molecular, materials nano structure, molecular nanotechnology, components for computers, physical mesoscopic/technology, chemistry macro molecular.
The specific chemistries designed and employed are necessarily a function of the host polymer's unique chemical and physical characteristics.
The key to exfoliation is the definition of polymer-compatible chemistries to intercalate the individual clay sheets.
Gas barrier resin composition, multiplayer structure and its production. [3.] 4.
Itada Mitsuyoshi – Gas barrier resin compodsition, multilayr structure and its production – 1998.
Online since: November 2010
Authors: Jie Liu, Wan Zhong Yin, Yue Xin Han
Results and discussion Chemistry analysis of shales.
Chemistry analysis of shales was showed in Table 1.
Based on chemistry analysis of shales, potassium, silicon, aluminium and iron were main element in the shale and there were silicon minerals with potassium including quartz.
The crystal structures of potassium feldspar and muscovite must be disturbed to release soluble potassium ion on some condition due to potassium ion in the structure closely combining with aluminosilicate skeleton.
The shales were red argillaceous shale of horizontal bedding structure with potassium.
Online since: April 2014
Authors: Jian Hua Wang, Yu Zhong Guo, Fei Luo, Lin Zhang
This aftermath may influence details of crystalline structures, e.g, cation valence distribution in lattice, and the final performance divergence of cathode materials.
The as-prepared precursors consist of a complex mixture of Mn3O4 and minor Ni-Cr-Mn oxides of spinel-like structures, rather than expected M (OH)2 hydroxides.
References [1] Goodenough J.B, Kim.Y, Challenges for rechargeable Li batteries, Chemistry of Materials, 2010, 22:587-603
Mackery , Manganese for lithium batteries, Progress Solid State Chemistry, 1997, 25: l-71
Casas-Cabanas, et.al, Composition-structure relationships in the Li-Ion battery electrode material LiNi0.5Mn1.5O4, Chemistry Materials , 2012, 24:2952−2964 [14] T.
Online since: October 2014
Authors: Xiao Ya Guo, Jin Yu Hao, Li Zhang, Si Tao Shu
TG and FTIR analysis has been conducted to investigate the thermal stability and structure of lignin, and the result indicated that hydrothermal pretreatment influenced the thermal stability and structure of lignin extracted from corncob.
As the time extended to 90 min, the structure of corncob was effectively scattered.
References [1] Adler E: Lignin chemistry: past, present and future.
[3] Li J, Gellerstedt G, Toven K: Steam explosion lignins; their extraction, structure and potential as feedstock for biodiesel and chemicals.
[5] Fengel D, Wegener G.: Wood: Chemistry, Ultrastructure, Reactions.
Online since: December 2010
Authors: J. Grabis, V.I. Voronin, I. Sildos, Nina Mironova-Ulmane, A. Kuzmin, I.F. Berger, V.A. Kazantsev
Kazantsev4 1Institute of Solid State Physics, University of Latvia, Kengaraga str. 8, 1063 Riga, Latvia 2Institute of Inorganic Chemistry, Riga Technical University, 2169 Salaspils, Latvia 3Institute of Physics, University of Tartu, 51014 Tartu, Estonia 4Institute of Metal Physics, Urals Division of Russian Academy of Sciences, 620219 Ekaterinburg, Russian Federation 5Institute of Solid State Chemistry, Ural Branch of RAS, 620219 Ekaterinburg, Russia anina@cfi.lu.lv, ba.kuzmin@cfi.lu.lv, cvoronin@imp.uran.ru Keywords: NiO, nanopowders, x-ray diffraction, neutron diffraction, Raman scattering.
Structure and magnetic properties of nickel oxide (NiO) nanopowders have been studied by X-ray/neutron diffraction, SQUID magnetometer, and micro-Raman spectroscopy.
In the paramagnetic phase above the Néel temperature TN = 523 K [1], NiO has a cubic rock-salt crystal structure (Fm-3m).
The magnetic structure of NiO nanoparticles can differ from the bulk magnetic structure, because of the influence of surface effects [5].
For example, a complex magnetic structure with as many as eight sublattices has been observed in NiO nanoparticles [6], in contrast to the bulk NiO which has a simple two-sublattice structure.
Online since: December 2012
Authors: Guy Vereecke, Silvia Armini, Herbert Struyf, Erik van den Hoogen, Jens Smeers, Tinne Delande, Xiu Mei Xu
In this work, we use silicon nano-pillars as test structures and modify the pillar’s surface energy by different surface functionalization.
For structures used in this work, the transition from a good wetting state to partial wetting occurs when 50˚<θ < 80˚ as can be seen from Figure 3.
These results demonstrate that there is a big challenge in wet processing of surface with high aspect ratio nano-structures.
CA can be used to assess the impact of chemistry or additives on wetting, however to have a better knowledge of the wetting depths, some quantitative measurements need to be carried out.
The impact of structure dimensions (see Table I) on wetting is presently under investigation and results will be reported at the conference.
Online since: September 2013
Authors: Wei Li, Jian Chen, Wei Qiu, Yan Jie Ren, Jian Jun He, Jian Lin Chen, Zi Han Huang, Zhuo He
Otherwise, the shape of pore has a severe influence on the structure properties of the material, i.e. every increase of pore edge corresponds to a decrease of stability in structure. 1.
Because the 2D model and loading are symmetrical structure, so the model was built only half done.
(3) The shape of pore has a severe influence on the structure properties of the material, i.e. every increase of pore edge corresponds to a decrease of stability in structure.
Molten Salts Chemistry & Technology, Toulouse;29 Aug-2 Sep 2005
Materials Chemistry and Physics, 2006,98 :273–278 [9]Dohwon Jung,Insung Lee,Heechun Lim,et al.On the high creep resistant morphology and its formation mechanism in Ni–10 wt.% Cr anodes for molten carbonate fuel cells[J].Journal of Materials Chemistry,2003,13:1717-1722
Online since: September 2011
Authors: Ai Hua Ling, Jian Fang Chen
Design and synthesis of a miktoarm star PMMAZO-(PCL)2 copolymer JIANFANG CHENa, AIHUA LING Department of Chemistry and chemical Engineering, Hunan institute of Engineering, Xiangtan, 411104; acjf1228@yahoo.com.c Keywords:miktoarm, star polymer, PMMAZO, polycaprolactone Abstract- A series of novel miktoarm star polymers were synthesized by combination of at-om transfer radical polymerization(ATRP), chemical modification and ring-opening polymeri-zation(ROP).
The information of PMMAZO(OH)2 and PMMAZO-(PCL)2 miktoarm star polymer confirmed the expected structure.
Introducing functional azo LC into miktoarm star polymers can bring about specific microphase separation structure which may impact the photoelectric properties and so on.
The Convergence of Synthetic Organic and Polymer Chemistries.
A new approach to 3-miktoarm star polymers using a combination of reversible addition–fragmentation chain transfer (RAFT) and ring opening polymerization (ROP) via “Click” chemistry.
Online since: October 2012
Authors: Yang Zou, Yin Zhi Jiang, Kuan Xiong, Xiao Long Gao
Synthesis and Crystal Structure of 2-hydroxyl-4-methyl-thioxanthone Jiang Yin-Zhi 1, a, Xiong Kuan 1,b ,Zou Yang1,c,Gao Xiao-Long1,b 1 Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou 310018,P.R.
Herein, we report the synthesis (Scheme 1), structure study of the title compound.
The structure was solved by direct methods (SHELX-97) and expanded with successive Fourier technique.
All calculations were performed on PC with the SHELXS-97[11] program. 2 Result and Discuss 2.1 Structure of the title compound The molecular structure of the title compound with atom numbering scheme is showed in Fig.1.
Fig. 1 The molecular structure of the title compound Fig. 2 The packing of the title compound Table 1.