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The Redox and Optical Response of the Electrogrowth Film from a Mixture of 2,5-Bis[4-(P-Aminophenoxy)Phenylene]-1,3,4-Oxadiazole and Fluorene Mariana-Dana DAMACEANU * “Petru Poni” Institute of Macromolecular Chemistry, Polycondensation and Thermostable Polymers Department, Aleea Grigore Ghica Voda 41A, Iasi - 700487, ROMANIA *damaceanu@icmpp.ro Keywords: 1,3,4-oxadiazole, fluorene, electropolymerization, optical properties, electrochemical activity.
The FTIR spectroscopy was used to solve the issues concerning the way of monomers linkage in the copolymer structure.
The monomers structures are shown in Fig. 1.
Proposed electropolymerization mechanism of copoly(Ox-Fl) Structural characterization and film morphology Fig. 6 shows the FTIR spectra of copoly(Ox-Fl) as electrogrowth film on ITO substrate, thereby proving the proposed structure.
Marin, Structure–property relationship in fluorene-based polymer films obtained by electropolymerization of 4,4’-(9-fluorenylidene)-dianiline, RSC Adv. 5 (2015) 97016- 97026

Results and Discussion Structure determination The XRD pattern for the nanoceria is shown in fig. 2.
The XRD figure also shows the reflection planes and 2θ positions characteristic of pure polycrystalline phase of cubic fluorite structure of the CeO2 NPs.
The volume of the unit cell of the CeO2 cubic structure was calculated to be 134.9978 Å3 using V = a3 (3) Fig. 3.
The main rationale behind zeta potential study is to determine the surface charge density of a material so as to predict its surface chemistry and stability.
Baysinger, “Team LRN CRC Handbook of Chemistry and Physics

They detected the expression of Runx2 by immunocyto chemistry analysis, and confirmed that Co2+ and Mg2+ co-doping could significantly enhance the proliferation and differentiation of bone cells (MG-63).
One of the challenges in improving the success rate of implant implantation is to promote adequate vascularization of tissue engineering structures.
The results showed that Co-doped TCP promoted the gene expression of VEGF and significantly increased the formation of HUVECs network structure as compared with the pure TCP.
Journal of Materials Chemistry, 2012, 22:21686
The effects of cobalt elements addition on Ti2Ni phases, thermodynamics parameters, crystal structure and transformation temperature of NiTi shape memory alloys.

Properties of Steel Fiber Reinforced Desert Sand Concrete Rui Yu1,a, Yong Huang1,2,b, Jian Sun2,3,c*, Yubin Liu1,d, Sining Li2,e, Siyu Luo4,f, Zengshui Liu1,g 1School of Architecture and Engineering, Xinjiang University,Urumqi 830017, China; 2State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China; 3Department of Automobile Road Construction and Maintenance, Kharkiv National Automobile and Highway University, Yaroslava Mudrovo str., 25, Kharkiv 61002, Kharkiv, Ukraine 4School of Chemical Engineering, Xinjiang University, Urumqi 830017, China; a2442896393@qq.com, bpengyou0991@163.com, c1586118851@qq.com, d823952001@qq.com, elsn970525@163.com, f1972507461@qq.com, g819047433@qq.com *1586118851@qq.com Keywords: Natural desert sand; Steel fibers; Fiber length; Fiber volume admixture; Mechanical properties Abstract: To study the effect of steel fibers on the mechanical properties of desert sand
In addition to this, the spatial reticulation structure formed by the steel fibers together with the concrete mix also hinders the flow of the mix.
Fig. 11(d) showed the SEM image of fiber volume admixture of 1.2%, comparing with other fiber volume admixture of concrete matrix was the most dense, the cement hydration is the best, and the hydration products, such as Ca(OH)2, needle Aft, C-S-H gel and so on, fill the pores sufficiently to form a dense structure.
Fig. 11(e) showed the SEM image of fiber volume admixture of 1.6%, there were micropores inside the concrete, and the structure of hydration products was looser and more porous.
Composite Structures, 2013, 106(dec.): 742-753.

The film structure was analyzed by X-ray diffraction (XRD) at 30 kV and 20 mA with Cu Kα radiation.
The film structure was analyzed by X-ray diffraction (XRD) at 30 kV and 20 mA with Cu Kα radiation.
As observed from the X-ray diffraction pattern, the peaks of ZnTe (101), (102), (103) and (11) were very distinct with a hexagonal structure (JCPDS card 83-0967).
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)

A novel curable liquid polysilane (CLS) containing reactive unsaturated bond and Si-H was synthesized from dichloromethylvinylsilae, methyldichlorosilae and Na in presence of 18-crown-6 under sonication at relatively lower temperature and its structure was characterized by FT-IR, 1H-NMR.
Domrachev: Journal of Applied Chemistry Vol.83 (2010), p. 115

First result shows a columnar structure with only tetragonal phase in the ceramic coating in the chemical composition range studied.
The process parameters are adjusted so that the deposit has a columnar grains structure perpendicular to the interface.
The thermal conductivity of partially stabilized-ZrO2 (PSZ) is determined by its defect structure and the defect associates between them.
Thus, the defect chemistry generated by the two dopants is also identical and would be expected to scatter phonons due to the difference in ionic radius and atomic bonding[16].
It is possible to see the metallic bond layer and the ceramic layer where the columnar structure is evident (Figure 3-a).

., Jinan 250022, China 2College of Chemistry and Chemical Engineering, University of Jinan, 106 Jiwei Rd., Jinan 250022, China achm_wangzp@ujn.edu.cn, bwzz322@126.com, cwangxiaolcz@163.com, dchm_liqian@ujn.edu.cn, echm_muzg@ujn.edu.cn, fchm_zhangzl@ujn.edu.cn, *corresponding authors Keywords: Simultaneous removal; NOx; Soot; Lanthanum stannate oxides; Pyrochlore; Iron doping.
The doped solids exhibit higher activities than the undoped one, which may be related to the enhancement of reducibility derived from structure defects induced by doping.
Especially, owing to their thermal stabilities and tunable structure, the catalytic properties of pyrochlore oxides have attracted much interest.
The improved oxygen mobility may be derived from the structure defects induced by doping, which can be helpful in oxidation reactions.
The doped solids exhibit higher activities than the undoped one, which may be related to the enhancement of reducibility derived from structure defects induced by doping.

Introduction The premature failure of reinforced concrete structures which are caused by carbonation of concrete, reinforced structural failure, chloride erosion has become a universal concern [1].
The main reason that causes the premature failure of concrete structure is rebar corrosion damage.
Environmental parameters (such as potential, pH value, oxygen concentration, temperature and crack tip chemistry, etc.) of crack growth kinetics have a major impact mainly on crack growth rate.
(3) Must take measures to prevent the corrosive medium on steel structure, such as the use of rust inhibitors, epoxy resin protective membrane, the cathodic protection measures and high-performance concrete.
Corrosion and protection research on reinforce concrete structure with chloride iron penetration.

Core-shell structure was examined by transmission electron microscope (TEM).
Introduction Biomaterials, artificial or natural materials, are used in making of structures or implants to replace the lost or diseased biological structure to restore form and function.
Titanium (Ti) and carbon (C) are stable element to optimize surface chemistry and promote fast osteointegration.
The aim of this work is to study the structure and biological properties of the as-prepared TCBs.
Core-shell structure of the as-prepared sample was revealed using a transmission electron microscope (TEM, JEOL JEM-2010).