Search results

Different structures have been produced, such as nano-belts, nano-rings, nano-ovals, and other nanostructures [17,18].
TEM images of Fe3O4 nanoparticles exhibit triangle-shaped structures, some circular and some irregular (Fig. 9a).
The synthesized iron oxide was crystalline spinel structured magnetite (Fe3O4) phase.
Tronc, “Iron oxide chemistry.
Schwertmann, “The Fe Oxides: Structure, Properties,” React.

China 2 State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, P.
TETA was treated as structure-directing agent.
Results and Discussion The XRD patterns of FeZSM-35 and ZSM-35 synthesized using TETA as structure-directing agents were shown in Fig. 1(a) and (b).
Conclusions In this paper, TETA was first used as structure-directing agent in the synthesis of FeZSM-35 zeolites.
The authors also thank the support given by State Key Laboratory of Inorganic Synthesis and Preparative Chemistry of Jilin University (P.R.

The relationship between composition, properties and structure were obtained.
The phase structure of the samples were analyzed by X-ray diffraction (XRD, Model D/MAX-2500X, Japan) instrument and XRD patterns of the samples were obtained.
The similar XRD patterns of the samples indicates that CeO2 doping only filled into the lattice of SnO2 with the form of displacement and instead of changing the rutile structure of SnO2[12].
Longo, et al, Influence of La2O3, Pr2O3 and CeO2 on the nonlinear properties of SnO2 multicomponent varistors, Journal of Materials Chemistry & Physics. 74 (2002) 150–153
Hishita, et al, Zn and Sb interaction and oxygen defect chemistry in dense SnO2 ceramics co-doped with ZnO and Sb2O5, Journal of Ceramic Society Japan. 122 (2014) 421-425

Characterization of Internal Structure of A Green Body Made by Dry-pressing S.
Uematsu Department of Chemistry, Nagaoka University of Technology 1603-1 Kamitomioka Nagaoka Niigata, 940-2188 JAPAN Keywords: alumina, green body, granule, Internal structure Abstract.
Internal structure of green compact made by dry pressing was observed using confocal laser-scanning microscopy.
The transition of the internal structure was studied about green compact to sintered body.
Figure 5 shows internal structure in optical micrographs of the sintered bodies.

Liu, Controllable synthesis of conducting polypyrrole nanostructures, The Journal of Physical Chemistry B, 110 (2006) 1158-1165
Lee, Electrochemistry of conducting polypyrrole films, Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 129 (1981) 115-132
Diaz, Spectroelectrochemical study of polypyrrole films, Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 149 (1983) 101-113
Single scan and cyclic methods applied to reversible, irreversible, and kinetic systems, Analytical Chemistry, 36 (1964) 706-723
Allred, Electronegativity values from thermochemical data, Journal of inorganic and nuclear chemistry, 17 (1961) 215-221

Suzdalev, Nanotechnology: Physics and Chemistry of Nanoclusters, Nanostructures and Nanomaterials, KomKniga, Moscow, 2006
Tyler, Chemistry of Silica, Mir, Moscow, 1982
Brusser, Structure and Properties of Cement Concretes, Moscow, 1979
Powers, Physical Structure of Portland Cement Paste, in: H.F.U.
Taylor (ed.), Chemistry of Cements, Stroyizdat, Moscow, 1969, pp. 300-319.

The SEM images showed freeze-dried fibroin gels close to the ultrasonication source had compact structure, while the structure was more loosening far away to the source.
Fig. 5(c), (d) and (e) showed that the freeze-dried fibroin hydrogels had compact structure close to the center of ultrasonication point, while away from the center, the structure was more loosening.
The morphology and final structure of silk fibroin gels under ultrasonication were also studied.
It turns out that ultrasonication only accelerates the molecular transition of silk fibroin from random coil and α-structure to β-sheet conformation and has inappreciable influence on the final structure and composition.
Dong Hua University (Nature Science Edition), Vol. 27(2001), p. 12 [25] M Tsukada, Y Gotohet al: J.Polym.Sci Part A: Polymer Chemistry, Vol. 32(1994), p. 961 [26] H Yoshimizu, T Asakura: J.

All pour point depressants are structured that part of the molecules is like the paraffin wax crystals, this part functions by providing nucleation sites and co-crystallizing with the paraffin waxes, while the other part of the structure, dissimilar to the wax crystals, blocks the extensive growth of the wax matrices[8].
Results and discussion Effect of the chemical structure and the amine chain length of the copolymers on the pour point of waxy crude oil The effectiveness of the pour point depressants was related to the chemical structures of the prepared samples.
When the wax, asphaltene, resin and effective component of pour point depressant in crude oil could be fully dissolved, they could worked effectively, and improved the structure and aggregation state of wax crystal.
Bernadiner: International Symposium on Oil field Chemistry (1993) 2–5
Journal of Fuel Chemistry and Technology 37 (3) (2009) 302.

X-ray photoelectron spectroscopy (XPS) analysis was used to characterize the chemical structure of bonding interface.
A with additives and isocyanate） XPS Analyze the Chemical Structure of Bonding Interface.
The interface chemical structures of plywood with bonding joint with the optimum ratio were analyzed, the results shown in Figure 2 and Table 2. 1200 1000 800 600 400 200 0 0.0 5.0x10 4 1.0x10 5 1.5x10 5 2.0x10 5 2.5x10 5 3.0x10 5 3.5x10 5 4.0x10 5 296 294 292 290 288 286 284 282 280 0 1x10 4 2x10 4 3x10 4 4x10 4 5x10 4 544 542 540 538 536 534 532 530 528 526 0 1x10 4 2x10 4 3x10 4 4x10 4 5x10 4 6x10 4 7x10 4 406 404 402 400 398 396 394 3.5x10 3 4.0x10 3 4.5x10 3 5.0x10 3 5.5x10 3 6.0x10 3 Counts/s Bonding Energy(eV) O1s N1sC1s Counts/s Bonding Energy(eV) C1s A C1s B C1s C C1s D Counts/s Bonding Energy(eV) O1s A O1s B Counts/s Bonding Energy(eV) N1s A N1s B Figure 2. adhesive interface XPS spectra of adding additives and isocyanate It is can be seen clear in Figure 2 and Table 2 that the chemical structure of adhesive layer contains a certain amount of the bonding of carbon and nitrogen with the content
Chemistry and Adhesive, Vol. 30.
Chemistry and Adhesive, Vol. 27.No. 6, (2005), p. 358-361 [3]Y.H.

While in higer humidity, the formless structure foam starts becoming soft, but the fiber network structure strengthens, this may be because of joining fiber makes the glue degree and dilatability increase.
The starch is amylase carbohydrate composing of glucose, its chemistry structure type is (C6H10O5)n , C6H10O5 is the dehydrate glucose unit, n is the amount of the dehydration glucose unit named polymerization degree[5].
Fig.2 The structure of amylopectin Fig.1 The structure of amylose  Wood fiber.
The wood fiber main chemistry composition is a substance of the wood fiber cell wall and between of cell wall, composing of cellulose, half cellulose and lignin three kinds of macromolecule compound.
Polyvinyl alcohol, viny alcohol polymer, poval is shortened form PVA, the chemistry structure type is [C2H4O]n.PVA is a kind of water-solubility complex bond, the agglutination mechanism is that impregnate volatilizes while heating.