Search results

NZP is new structure functional ceramic materials.
The coprecipitation reaction shows that the co-precipitation of phosphate powder is hydroxyl with a poly structure.
Based on the analysis of the crystal chemistry, Sr2+ (ionic radius: 0.118 nm) occupies the position of Ca2+ (ionic radius: 0.1 nm) instead of .
In the open-type CZP structure, the Sr2+ partial replacement of Ca2+ sites leads to elongated unit cells, resulting in a decrease of the interplanar spacing d.
Synthesis and crystal structure of NZP-type thorium-zirconium phosphate.

Controlled synthesis of PbWO4 crystals with good fluorescence property by a novel duck egg membrane Baoyou Gong1, Le Pan1, Qingfeng Zhang1, Hui Zhang2, Anjian Xie1, Cun Li1, Jiming Song1, Shikuo Li1,* and Yuhua Shen1,* 1 School of Chemistry and Chemical Engineering, Collaborative innovation center of modern bio-manufacture, Anhui University, Hefei 230601, P.
Recently bio-mimetic synthesis chemistry has been widely used for the synthesis of nano-materials because of little hazardous byproducts.
Some plates embed each other to form cross structure.
These interesting properties of PbWO4 micro-structures have potential applications.
Karamancheva, Insight into the secondary structure of chloramphenicol acetyltransferase type I-computer analysis and FT-IR spectroscopic characterization of the protein structure, J.

With different treatments, their different morphology and various structures were discussed in details.
We presented results of a detailed morphology and structure of MgCl2/alcohol complexes treated with various Al-alkyl solution in Ziegler-Natta catalyst precursors for polymerization of ethylene by SEM and XPS.
Much of the magnesium chemistry is revealed by a study of the MgKLL Auger transition.
The morphology and structure of the MgCl2/alcohol complexes and the titanium-based Ziegler-Natta catalysts were observed and the changes in different processes were studied by XPS, SEM and EDS.
Various species and concentration of Al-alkyl were identified to have different performance in dispersing titanium species on treatment of MgCl2/alcohol complex via morphology and structure study.

The micrograph of single AC in indicates porous structure with numerous pores present due to dehydration of volatile matters.
FESEM micrograph of single AC in Fig. 1(a) indicates porous structure with numerous well-developed pores.
Carbothermal reduction of CuO with AC at 650°C led to the formation of Cu2O and Cu with regular structures and smaller particle size.
The AC amorphous structure pattern reduced drastically after milled with CuO and after carbothermal reduction process.
Gómez-Serrano, “Activated carbon surface chemistry: Changes upon impregnation with Al(III), Fe(III) and Zn(II)-metal oxide catalyst precursors from NO3− aqueous solutions,” Arab.

Effect of Reaction Time on the Morphology and Photocatalytic Property of ZnO Nanoparticles Xia Kong1, Yawei Hu1, a and Wei Pan2 1 College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, P.
The phase, crystallographic structure and morphology of synthesised ZnO nanoparticles were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD).
It is well known that the photocatalytic activity can be affected by the band gap energy, crystal structure, particle size, dispersibility and the hydroxyl density on the surface [7,8].
The phases and structures of prepared ZnO samples were characterized by an X-ray diffraction (XRD, Rigaku-Ultima IV, Tokyo, Japan) with Cu Kα radiation at a scanning rate of 8 °·min-1 ranging from 20º to 80º.
The perfect hexagonal structured rods are formed with the diameter about 400 nm when the growth time was extended to 8 h (Fig. 2d).

At present, by using the fluidized bed reactor (FBR) WS2 nanoparticles with fullerene-like structure enriched by 5% WS2 chiral multiwall nanotubes are obtained in substantial amounts3,4.
This stretched tube was taken as initial structure for another molecular dynamics simulation using the same parameters, and the procedure was repeated until the tube broke apart.
Using this procedure, about 20 initial structures for each tube for the forthcoming MD simulations were created.
Based on this set of data and on the similarity between the structure of MoS2 and WS2, a similar behavior for both kinds of nanotubes in tensile tests, is expected.
Schmidt Minerva Center for Supramolecular Chemistry, the German-Israeli Foundation (GIF), Philip M.

This is because appropriate CeO2 can disorder the chain structure and effectively inhibit the crystallization of PEO, which expands the amorphous region required for the lithium-ion transport.
The performance of functional composite materials depends largely on the local characteristics of the transition ions, such as the local structure, crystal morphology and distribution.
CeO2 nano-particles break the regular chain structure of PEO molecular, so that the total energy of thermal motion from a large number of chain segments will be reduced.
But when the CeO2 content reached 15 wt.%, Due to the excessive accumulation of CeO2 generated, which lead to uneven accumulation of the diagram structure, and thus to some extent hindered lithium ion transport
It has become a cross-point of many disciplines, including materials science, chemistry, physics and other disciplines.

Thus, corncob is suitable residue for study molecular structure through the pretreatment method.
Due to the high hemicelluloses content and high energy density [2-3], corncob is considered as one of the suitable residue for study molecular structure through the pretreatment method.
In this research, the molecular structure, physical structure, biomass phase in solid phase of product from corncob through the hydrothermal carbonization process with effects of temperature and calcium-based salt addition were studied.
The peaks between 22.2o and 80o, the XRD peaks indicated that peaks of calcium-based salt in various structure [14-15].
Chemistry of Materials, Vol.19, pp.4205-4212.

It can be seen that the powders possess a sphere shape and a dendritic structure is evident.
It can be seen that the as-cast alloy possess a coarse dendritic structure.
The results indicated that a dimple structure is showed in both as-HIPed and as-cast low carbon 625 alloys.
The alloy after HIPed and HT possesses an equiaxed fine grain structure, with an average grain size of 14.5μm.
Nickel-based superalloys for advanced turbine engine chemistry, microstructure and properties.

HR Subrantas Km 12.5 Pekanbaru 28293 Riau, Indonesia 2Department of Chemistry, IPB University, Jl.
The magnetite nanoparticles had a mesoporous structure and bigger pores at higher concentration.
This is because in high crystallinity, the structure is almost close to the crystal structure of the bulk material [14].
The hysteresis loop on the curve indicates the presence of mesopore structures in the sample and the occurrence of capillary condensation due to mesopore structures [15].
Anand, Synthesis and applications of nano-structured iron oxides/hydroxides – a review, Int J Eng Sci. 2 (2010) 127-146 [2] M.