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Keywords: ionic liquid; 1-ethyl-2-alkyl-benzimidazolium tetra-fluoroborate; crystal structure.
There is currently a realization that there is a vast range of novel applications of ionic liquids, such as in biphasic catalysis [3], extraction [4], organic synthesis [5], electrochemistry [6], physical chemistry [7], media for crystal growth [8], and materials science.
Crystal structure determination.
Crystal structure of [H-ebBim]BF4.
ORTEP diagram of [H-ebBim]BF4 structure with an atom numbering scheme.

Findings showed that the film annealed at 300℃ was uniformity and compact, which was zinc blende cubic structure.
ZnS has two major modification, zinc blende cubic structure β-ZnS and hexagonal wurtzite structure α-ZnS, only β-ZnS can exist steadily in nature [1].
The band gap of zinc blende cubic structure β-ZnS lies in the range 3.5-3.6eV, as a result, the film was zinc blende structure, this also determined the diffraction angle at 28°was β-ZnS (111) crystal orientation.
Solid State Chemistry[M].
Investigation on composition and structure of ZnS:Mn evaporation films with sulfur supply[J].

In this study, silver nano/micro structures were successfully synthesized from silver nitrate via a polyol method at 160 °C.
All the peaks were indexed well to the face-centered cubic (fcc) structure of Ag crystal (JCPDS 04-0783).
Thus, the rods structure with the preferential growth obtained.
Along with spherical microstructure, triangle, cubic as well as nanorods structure presented.
Hupka, Procedia Chemistry Vol. 1 (2009),p. 1560 [20] K.

Fabrication of Silver Nanoparticles and Its Films and Their Characterization of Structure and Electrical Conductivity Markus Diantoro1),*, Alif Fitria Chasanah1), Nasikhudin1), Nandang Mufti1), Abdulloh Fuad1) 1)Jurusan Fisika FMIPA Universitas Negeri Malang, Indonesia email : m_diantoro@yahoo.com Keywords: Nanosilver, film, coprecipitation, spin coating, structure, conductivity Abstract.
The morphology and the crystal structure have been determined by means of XRD and SEM.
Exploring semiconductor material in the form of thin film with nano-scale structures are used extensively in a variety of technological field.
Investigating for the remaining samples we obtain that all samples fit to the same single phase of silver structure.
Lee, Conductive silver films formed from nano-sized silver powders prepared by flame spray pyrolysis, Materials Chemistry and Physics, 124 (2010) 959-963

Phase Composition Influence on Melt Viscosity and Ingot Structure Formation Features in EK77 Alloy ZHILYAKOV Yu.
Based on the research performed it is possible to illustrate schematically the relationships of EK77 alloy initial structure before remelting to the structure forming while aging prehomogenized alloy after remelting (Fig. 7).
Relationships of EK77 alloy initial structure before remelting to the melt state before crystallization and the structure forming while aging prehomogenized alloy Conclusions 1. 
Equilibrium and nonequilibrium states of metallic melts, Fundamental research of physical chemistry of metal melts (2002) 214 – 228, [in Russian]
Pastukhov, Diffraction studies of high-temperature melts structure, Nauka, Moscow, 1980

Coal-based polyaniline can be prepared by firstly putting the aniline monomer into raw coal, then leading aniline to in-situ polymerization, and finally obtaining the nano-polyaniline with interpenetrating network structure and intercalate structure.
The whole process is affected by the pore structure, zeolite structure and aromatic lamellar structure of coal, and the characteristics of polar phenolic hydroxyl group and carboxyl group on the surface of coal [1-2].
Determination of the conductivity The conductivity was measured using a GM-Ⅱ{TTP}8545 multifunctional Resistivity Tester (Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences).
The oxidation also affected the C-H structure.
Xie: The Structure and Reactivity of Coal, (Science Press, Beijing 2002) (in Chinese)

Brasil 101 1700-066 Lisboa, Portugal. 2 University of Évora, Geosciences Department and Évora Geophysics Centre Rua Romão Ramalho 59, 7000-671 Évora, Portugal. 3 University of Évora, Chemistry Department and Évora Chemistry Centre Rua Romão Ramalho 59, 7000-671 Évora, Portugal.
Abstract: The degradation of concrete structures caused by delayed ettringite formation (DEF) is a problem that nowadays affects many concrete structures worldwide.
Introduction In the last years an increased number of concrete structures affected by expansive chemical reactions of internal origin [1]have been diagnosed, namely affected by the internal sulfatic reaction that is characterized by the formation of expansive ettringite (3CaO⋅Al2O3⋅3CaSO4⋅32H2O),which is associated with the formation of delayed ettringite formation (DEF).

The influence of varying Sb2O3 concentrations on their thermal properties and crystal structure is evaluated.
This clearly indicated the modification of amorphous network structure, which is ascribed to the rupture of bridging oxygen (BO) bonds and subsequent formation three types of glass network structure [12].
Holland, The crystallization of Sb2O3-PbCl2- ZnCl2 glasses, Physics and Chemistry of Glasses. 31 (3) (1990) 126-131
Shelby, Introduction to glass science and technology, Royal Society of Chemistry. (2005)
Lin, Study of structures and properties of ZnO-Sb2O3-P2O5-Na2O glasses, Materials Science-Poland. 32(3) (2014) 414-418

Alternative raw materials, and a plethora of novel chemistries have been explored; all permutations on reaction bonding routes which can achieve a reasonably dense body at lower than the ≈1700 o C temperatures required for normal sintering of a silicon nitride starting mix have been investigated.
The possible existence of carbon nitride, C3N4, with the silicon nitride structure, has fired the imagination of materials scientists interested in hard materials, because the reduced bond lengths expected in this compound would result in a higher bulk modulus and hence a higher hardness than diamond.
This form does not easily convert to phenacitetype C3N4 because the nitrogen content is incorrect, and also the transformation is comparable to that for converting graphite into diamond (i.e. kinetically prohibitive because of the large amount of rearrangement required in the covalently-bonded structure).
If the curve shown in Fig. 3(a) is taken as typical of the pattern of nitrogen uptake when a metal (in this case boron) is milled, then a significant amount of the gas is being incorporated into the metal structure.
The explanation for this behaviour would then be that the extremely high forces generated by these high-energy milling processes not only break down atomic arrangements so dramatically that they are enabled to receive atoms from the surrounding environment, which then are subsequently moved about within the structure by the continued high energy treatment.

Polyoxometalates (POMs) are early-transition-metal oxygen anion clusters that have been widely applied to various fields, such as structural chemistry, analytical chemistry, surface science, medicine, electrochemistry, photochemistry, and catalysis [3-7].
It is a 2:1 aluminosilicate, the unit layer structure of which consists of one Al3+ octahedral sheet between two Si4+ tetrahedral sheets [15].
RESULT AND DISCUSION The structure of heteropolyanion and the pillar montmorillonite samples were characterized by XRD analysis (Figure 1).
PVMo was encapsulated into the gallery silica framework structure in the PVMo-SPC-SG samples.
Müller, Polyoxometalate chemistry from topology via self-assembly to applications, Springer, 2001