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Carbon nanotubes containing metal nanoparticles -graft-hyperbranched polyglycerols nanocomposites Jing Zhua Yang Liub Juan Hec Hongliang Weid Huijuan Chue School of Chemistry and Chemical Engineering, henan University of Technology, Zhengzhou 450052, P.R .China ajingzhu@haut.edu.cn, blysky0820@163.com, cjuanhe@haut.edu.cn, dwtroy68@yahoo.com.cn, echuhj@haut.edu.cn Keywords: Carbon nanotubes Silver nanoparticles hyperbranched polyglycerols Nanomaterials Abstract: New water soluble multiwall carbon nanotubes (MWCNTs) containing silver nanoparticles-grafted-hyperbranched polyglycerols (HPG) nanocomposites were synthesized and characterized successfully.
Structure of nanocomposites was evaluated by TEM, TGA and spectroscopy methods.
Introduction With the unique atomic structure, high surface area-to-volume ratio and extraordinary mechanical properties, unique electronic and excellent thermal properties, carbon nanotubes(CNTs) have attracted considerable attention and stimulated extensive research activities across the world since their discovery by Sumio Iijima of the NEC Corporation in 1990s [1, 2].
Compared with the XRD pattern of MWCNTs, we can see that the structure of MWCNTs was not destroyed by strong mixed acids and, with the peak at 46°disappeared, metal catalysts used in the synthesis process of carbon nanotubes and other impurities also disappeared.

The residue contains inorganic oxides which can act on the crystalline structure of zeolites, namely silicon and aluminum oxide.
The residue, generated during coal combustion, is rich in silicon and aluminum which appear in the form of oxides and can therefore be used in the formation of crystalline structures known as zeolites, thus contributing with the need to give a suitable destination to the generated residue, seeing that its light and minuscule particles, when discarded inappropriately, are dispersed and leached, contaminating water sources [4].
Moreover, the treatments did not affect the crystalline structure of the ashes, which may be evinced as the diffractograms of the ashes show the same characteristic peaks.
Cunico: Journal of Radioanalytical and Nuclear Chemistry Vol. 289 (2011), p. 617.

The two-dimensional confinement and the unique interlayer chemistry of POM-intercalated hydrotalcite significantly enhance both the catalytic activity and selectivity of these composites [15].
This approach offers high flexibility in designing the final material's structure and properties.
The comparative analysis reveals that the incorporation of PW12 anions significantly improves the thermal stability of the LDH structure, as evidenced by the reduced weight loss in the high-temperature region (>450 ℃) and the preservation of the POM structure up to 700 ℃.
Despite similar structures forming equal hydrogen bonds, SiW12 has a higher negative charge density than PW12.
Pope, Polyoxometalate Chemistry for Nano-Composite Design, Berlin, Germany, 2006

Modeling a Chemical Exchange Process for the 13C Isotope Enrichment KOVENDI Zoltan 1,a*, MUREŞAN Vlad 2,b, ABRUDEAN Mihail 2,c, CLITAN Iulia 2,d, UNGUREŞAN Mihaela-Ligia 3,e and COLOŞI Tiberiu 2,f 1The University of Oradea, Automatic Systems Engineering and Management Department, 1 University Street, 410087 Oradea, Romania 2Technical University of Cluj-Napoca, Automation Department, 26-28 Bariţiu Street, 400027 Cluj-Napoca, Romania 3 Technical University of Cluj-Napoca, Physics and Chemistry Department, 103-105 Muncii Street, 400641, Cluj-Napoca azkovendi@uoradea.ro, bVlad.Muresan@aut.utcluj.ro , cMihai.Abrudean@aut.utcluj.ro , dIulia.Inoan@aut.utcluj.ro , eMihaela.Unguresan@chem.utcluj.ro, fTiberiu.Colosi@aut.utcluj.ro Keywords: Chemical exchange process, 13C isotope, Separation Column, Mathematical model, Simulation.
The process modeling is made in order to include it in an automatic control structure of the 13C isotope concentration.
The obtained mathematical model is identical as structure in the case of 2M, too, the coefficients KP and s13CI have the same values, but s13c0 and Din0 have different values.
Also, the model can be used to include the separation process in an automatic control structure with the purpose to control the value of the 13C concentration.

This article represents the progress on characterization of the interface interaction between sulfur oxidizing microbes and sulfide minerals by use of synchrotron radiation-based techniques including S/Fe/Cu X-ray absorption near-edge structure spectroscopy (XANES), X-ray Diffraction(XRD), micro- X-ray fluorescence (m-XRF) mapping and micro- scanning transmission X-ray microscopy (m-STXM) imaging, together with other accessory approaches such as SEM/EDS, Raman and FT-IR spectroscopy, and electrochemical methods as well as comparative proteomics methodology.
The microenvironment of the interface between the mineral and cells of SOM is defined pH, electric potentials, temperature, the structure and the energy substrate components, and the microbe involved and its metabolism.
Although to date there has been no lack of relevant research on such topics as biofilm and extracellular polymer substances [1], the molecular mechanism involved at the interface microbe-mineral interaction need to be evaluated, taking into account chemical speciation and microstructure evolution at the surface of energy-yielding substrates, the type and size of the microbial population, as well as the effects of pH, temperature, and the solution chemistry.
The difference in the ratios among SOMs suggests there may be different utilization mechanism for S0 among SOMs which may be affected by both the cell wall structure and the temperature dependency of sulfur allotropes transformation as shown in above section.

The influence of the post-annealing temperature on the crystalline orientation and the crystallinity of PZT films Jing Wan 1,2,a, Chengtao Yang1,b, Yang Gao1,c 1College of Microeletronics and Solid -State Electronics, University of Electronic Science and Technology of China, Chengdu, 610054, China 2College of Chemistry & Environment Protection Engineering, Southwest University for Nationalities, Chengdu, 610041, China a1208300163@qq.com, bctyang@uestc.edu.cn, c324417413@qq.com Keywords: PZT film, rapid thermal annealing, crystalline orientation, crystallinity Abstract.
X-ray diffraction (XRD) was used to analyze the crystal structures of the films and scanning electron microscope (SEM) was used to analyze the surface morphology of the films.
In the Spierings and Willems’s opinions[12，13], due to the diffusion of Ti atom from the Ti buffer layer surface to the Pt electrode surface , there enrich Ti atom on the interface of PZT/Pt which form nucleating points of perovskite structure PZT.
Cross [16] think that the surface of PZT film is cluster structure, and among the cluster crystalline grains, there are nanometer PbZrO3 or PbO grains.

A Novel Benzo[d,e]Chromene for Organic Light Emitting Diodes (OLEDs) Benjawan Somchob1,a, Somboon Sahasitthiwat2,b and Rukkiat Jitchati1,c* 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, Thailand Science Park, Paholyothin Road, Klong Luang, Pathumthani 12120 Bangkok, Thailand asomchob.benjawan@gmail.com, bsomboons@mtec.or.th, crukkiat_j@hotmail.com Keywords: OLED, TADF, Chromene Abstract.
The compounds were used as a dopant for OLEDs in the structure of ITO/NPB/BS01-BS04/Bphen/LiF/Al.
The structures are shown in Fig. 1.
Fig. 1 Chemical structures of BS01-BS04 Experimental General.

Creep of concrete can significantly affect the mechanical properties of the structure or component.
These phenomena are beneficial to the concrete structure.
In fact, the concrete plastic showing under the action of high stress is actually a "pseudo plastic"; the reason is that the chemistry binding force between the concrete materials and the metal is different.
But the stage out of the normal working stress rarely occur in the actual structure, the concrete structure creep will eventually stabilize in general.
Fatigue of Concrete Structures.

Due to the gelatin structure has a strong ability to absorb water molecules.
Therefore, increasing the gelatin content in the hydrogel structure results in a higher edema capacity.
Sodium alginate applied to the structure of hydrogel fertilizers that crosslink bonds was formed in the G-block structure of sodium alginate.
The structure of the hydrogel fertilizer is stronger and has a less porosity structure.
Rahmawati, Indonesian Journal of Chemistry 20 (2020)

Because of regular structure and high crystallinity, nano coir cellulose whiskers could be applied in medical materials.
In this paper, the results obtained with solution casting method by characterizing and analyzing structure, thermal properties, crystallization behavior and morphology of nano coir cellulose whiskers enhanced CS/PVA composite filmby FTIR, DSC, TG, XRD and SEM test.
When compared with ordinary cellulose, both regular structure and high crystallinity of nano cellulose whiskers (NCW) bring them more excellent physical and chemical properties, such as the enhanced strength, an exponentially increasing Young's modulus and Biodegradable capabilities[8].Therefore, it has aroused high attention that NCW was added as a reinforcing phase to a nanocomposite when firstly reported by Favier[9].
PMMA/TEMPO-oxidized cellulose nanofiber nanocomposite with improved mechanical properties, high transparency and tunable birefringence, Cellulose.2018, 25(4), 2393-2403 [12] Long Wang, Yuta Hikima, Masahiro Ohshima, Takafumi Sekiguchi and Hiroyuki Yano Evolution of cellular morphologies and crystalline structures in high-expansion isotactic polypropylene/cellulose nanofiber nanocomposite foams.Royal Society of Chemistry.2018, 8, 15405-15416 [13] Liu H, Luo B H, Chen R P, et al.Preparation and characterization of nano cellulose whiskers reinforced and toughened poly(L-lacticacid) based composites.Acta Materiae Compositae Sinica, 2015, 32(6),1703-1713
Biomed Mater Res A,2015,103(9),3081-3093 [20] Samuels R J.Solid state characterization of the structure of chitosan fihns.