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Preparation and Characterization of Soft Phase Magnetic α-Fe Nanoparticles by Different Methods Hyun Gil Cha 1,a , Young Hwan Kim 1,a , Don Keun Lee 1,a, In Chul Jeong 2,b , Hae Woong Kwon 2,b and Young Soo Kang 1,a 1 Department of Chemistry, Pukyong National University, Namgu, Busan 608-737, Korea 2 School of Materials Science and Engineering, Pukyong National University, Busan 608-739, Korea a,b yskang@pknu.ac.kr Keywords: α-Fe nanoparticles, polyol process, coprecipitation route Abstract.
The crystallinity and structure of α-Fe nanoparticles was investigated by X-ray diffraction (XRD).
The crystal structure of the prepared nanoparticles was identified by using X-ray powder diffraction (XRD) with a Philips X'Pert-MPD System with a Cu- Kα radiation source (λ = 0.154 nm).
The discernible peaks in Figure 1 (a) and (b) can be indexed to (110) planes of a cubic unit cell, which corresponds to cubic structure of iron (JCPDS card, no.06-0696).

The morphology and phase structure were characterized by scanning electron microscopy (SEM), atomic force microscope (AFM) and X-ray powder diffraction (XRD).
Therefore, developing size and morphology controlled preparation methods are of great interest in materials chemistry.
No change of cobalt phase structure was observed with the presence of PEMF.
The cobalt with fcc crystal structure named as b-Co with excellent ductility and stability could improve the ductility and strength of alloys.

A Novel Charged Iridium Polymer for Polymer Light Emitting Diode Witsanu Sombat1, Natsiri Wongsang1, Somboon Sahasithiwat2 and Rukkiat Jitchati1,* 1Organometallic and Catalytic Center (OCC), Department of Chemistry, Faculty of Science, Ubon Ratchathani University, Warinchumrap, Ubon Ratchathani Province, 34190, Thailand 2National Metal and Materials Technology Center (MTEC), Thailand Science Park (TSP), Paholyothin Road, Khlong Nueng, Klong Luang, Pathumthani Province, 12120, Thailand *rukkiat_j@hotmail.com Keywords: Iridium(III), Phenanthroline, Polyfluorene, Polymer light-emitting diodes (PLEDs) Abstract.
The molecular structures of polymers were characterized by 1H NMR, 13C NMR and gel permeation chromatography.
Fig. 1 Structure of target polymers Materials and Methods The average molecular weights of polymer were determined by gel permeation chromatography (GPC) on Shimadzu (LC-20AD) with Shodex column (GPC KF-800) and Shimadzu refractive index detectors (RID) using of CH3Cl as eluent and polystyrene as standards.
The devices was fabricated with the structure ITO/PEDOT:PSS/polymer/TPBi/BPhen/LiF/Al.

Fabrication and Characterization of Ferrocene-derived Sensor for Hydrogen Peroxide Detection Qidan Chen1, a, Ting Xia2, b, Fei Wu3, c and Xiaodan Lv4, d * 1,2,3,4Department of Chemistry and Pharmacy, Zhuhai College, Jilin University, Zhuhai 519041, Guangdong, China aemail: qidan.chen@foxmail.com, bemail: xiatingsyu@foxmail.com, c275837507@qq.com, d337188249@qq.com Keywords: Ferrocene, Hydrogen peroxide, Sol-gel technique, Electrochemical monitoring.
Ferrocene (Fc) is an organometallic compound of sandwich structure.

The research on the durability of concrete structure with the using of concrete structure peaked into the climax from 1960s, also realized the durability of concrete structures could be divided into four levels of environment, material, component and structure.
Li et al. [31] study on the numerical simulation and destruction in Chemistry-Thermo-Hygro-Mechanical coupling process of concrete under high temperature based on the porous medium theory.
Xing, Concrete and the durability of concrete structure, Beijing, Mach.
Crack control of engineering structure, Beijing, China Archit.
The numerical simulation and destruction in Chemistry-Thermo-Hygro-Mechanical coupling process of concrete, Chinese J.

The morphology structures of the MWCNTs structures were analyzed using Field Emission Scanning Electron Microscope (FESEM: JSM-7500F/JSM-7500FA).
Fig.1 (a) and (b) show the MWCNTs image structure of 45sec and 10min PECVD time respectively.
It is observed that both experimented timeframe synthesized vertically aligned MWCNTs structure.
As a result, as the CNTs length grew longer, the structure was not able to retain its upright shape because its diameter did not increase proportionately to support the extended structure.
M. van de Sanden, “Plasma chemistry during deposition of a-C:H,” Diamond and Related Materials, vol. 11, no. 3–6, pp. 989–993, Mar. 2002.

The results of XRD characterization demonstrate that the increase of titanium and the addition of additive affects the structure of the catalysts.
Introduction Environmental friendly catalytic reactions have attracted more and more attention in environmental chemistry, because the reaction processes can reduce emissions of pollutants.
This results suggest that the addition of different amounts of titanium into aluminium phosphate can considerably affect the structure of the materials.
The addition of cane sugar or citric acid affect the structure of the catalyst.
The results of XRD characterization demonstrate that the increase of titanium and the addition of additive affects the structure of the catalysts.

Research Progress on Ultraviolet Resistance Performance of PMIA Fiber Shaogui Wu*, Jun Zhou and Fan Yaru College of Chemistry and Materials Sciences, Sichuan Normal University, Chengdu 610068, P.
This is a promising solution allowing better structure stability of PMIA.
The degradation and cross-link of polymers are two kinds of irreversible chemical reactions caused by ultraviolet light, which further leads to structure fragile and poor mechanical properties.
These anti-UV monomers should satisfy certain requirements: First, They must contain reactive groups in molecular structures.
Third, the copolymerization has no significant influence on the original molecular chain structure of PMIA and its physical properties, so as to maintain the original style of PMIA fibers.

In this study, the flexural strength of composites tends to increase with decreasing the ratio of copper fiber/copper powder because the dendritic structure of copper powder enhances the probability of graphite platelets embedded in the dendritic arms, which in fact help to distribute the external load from matrix to copper powders.
There are two feasible reasons to explain the variation of flexural strength: one is the interface area between Cu particle and matrix, and the other is the structure of Cu particle [10].
Moreover, the dendritic structure of CuPs enhancing the possibility of G platelets embedded in the dendritic arms, which in fact help to distribute the external load from matrix to CuPs, is also expected to improve the strength of the composite materials.
As shown in Fig. 4a, the CuP with dendritic structure has stronger interface adhesion with matrix, however the gaps between the CuF and matrix in Fig. 4b indicate the poor interface adhesion.
Zhang: Radiation Physics and Chemistry Vol. 75 (2006) p. 524 [10] S.I.

Synthesis and Characterization of the ZSM-5/MCM-41 Composite Molecular Sieves Liqin Wanga, Ning Yu, Yang Han, Xiangni Yang, Xiuli Zhao Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei, 066004, China awangliqin@ysu.edu.cn Key words: ZSM-5/MCM-41, Composite Molecular Sieves, Micro-mesoporous, Hydrothermal Synthesis, Characterization Abstract.
The experimental results showed that as-prepared ZSM-5/MCM-41 composite molecular sieves kept both crystal structure and compositions of ZSM-5 zeolites and MCM-41 molecular sieves.
The crystal structure of the ZSM-5/MCM-41 composite molecular sieves was determined by X-ray powder diffractometer (XRD) of D/MAX-rB, which was radiated by Cu Kα.
Thus, it could be inferred the composite molecular sieves kept both crystal structures of ZSM-5 zeolites and MCM-41 molecular sieves.
The analytic results of XRD and FT-IR spectra showed the molecular sieves maintained both characteristic crystal structure and compositions of ZSM-5 zeolites and MCM-41 molecular sieves.