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Online since: October 2015
Authors: Alexander A. Sokolov, Valery G. Kuryavyi, Taisiya A. Kaidalova, Sergey L. Sinebryukhov, Sergey V. Gnedenkov, Denis P. Opra, Alexander Yu. Ustinov
Sinebryukhov1,g 1Institute of Chemistry, FEB RAS, 159 100-letiya Vladivostoka Pr., Vladivostok 690022, Russia 2Far Eastern Federal University, 8 Sukhanova St., Vladivostok 690950, Russia aayacks@mail.ru, bsvg21@hotmail.com, calexsokol90@mail.ru, dkvg@ich.dvo.ru, eall_vl@mail.ru, fchemi@ich.dvo.ru, gsls@ich.dvo.ru Keywords: Li-ion battery, anode, nanostructures, ferric fluoride, transition metal oxyfluoride.
The sample crystal structure was characterized by X-ray diffraction (XRD) on a Bruker D8-Advance diffarctometer (Germany) with CuKα-radiation.
Zverev (Institute of Chemistry of FEB RAS).
Online since: January 2011
Authors: Zhi Yuan Gao, Ning Yin, Jian Xin Jiang
This could illustrate that the graft copolymerization did not severely damage the crystal structure of the original sample.
Xu: Chinese Journal of Analytical Chemistry Vol.31 (2003), p.1 [8] M.
Fleury: Journal of Polymer Science Part A: Polymer Chemistry Vol.48, Issue 13( July 2010), p.86 [10] L.
Online since: December 2015
Authors: Joydeep Dutta, Muhammad Najam Khan, Mayuree Jaisai
Journal of Photochemistry and Photobiology A: Chemistry, 2003. 157(1): p. 81-85
Journal of Photochemistry and Photobiology A: Chemistry, 2006. 184(3): p. 313-321
Najam Khan, M., Comparison of different zinc stannate structures synthesized at room temperature for photodegradation of dyes and phenol, in Nanotechnology. 2014, Asian Institute of Technology: Bangkok
Online since: August 2019
Authors: Prasert Akkaramongkolporn, Pattaranut Eakwaropas, Tanasait Ngawhirunpat, Prasopchai Patrojanasophon, Praneet Opanasopit, Theerasak Rojanarata, Yin Yin Myat
This results corresponded to Young’s Modulus data that higher PVA concentration, higher extract loading and greater cycles of freeze-thawing provided higher strength hydrogel structure with lower erosion.
Kenawy, Crosslinked poly(vinyl alcohol) hydrogels for wound dressing applications: A review of remarkably blended polymers, Arabian Journal of Chemistry 8 (2015) 1-14
Moghaddam, Fabrication of heparinized nano ZnO/poly(vinylalcohol)/carboxymethyl cellulose bionanocomposite hydrogels using artificial neural network for wound dressing application, Journal of Industrial and Engineering Chemistry 70 (2019) 253-263.
Online since: June 2011
Authors: Yan Hua Wang, Yuan Yuan Liu
Degradation of Micro-arc Oxidation Coatings on the Surface of Magnesium Alloy under NaCl Droplet Yanhua Wan a, Yuanyuan Liub Department of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, China a wyhazz@163.com, bchongyuan1223@163.com Key words: droplet; magnesium alloy; micro-arc oxidation; potential; Kelvin probe Abstract.
Because of the unique two-layer structure of the MAO specimen, the droplet penetrated in and spread through the external loose layer during the initial several minutes.
The significant decline of potential can be related to the two-layer structure of the oxide coating.
During the first few minutes, due to the two-layer oxide structure, the droplet penetrated into the outer loose layer and spread gradually through the pores in the oxide layer.
Wu, Effect of additives on structure and corrosion resistance of ceramic coatings on Mg–Li alloy by micro-arc oxidation, Current Applied Physics, 2010,10 (3): 719-723
Online since: March 2007
Authors: H.Y. Wang, C. Wang, Xiao Feng Lu, Z.Y. Li, Yi Yang Zhao, Yen Wei
MacDiarmid Institute, Jilin University, Changchun 130012, China 2 Department of Chemistry, Drexel University, Philadelphia, PA 19104, USA a wangxiaofan2004@yahoo.com.cn, b yiyangzhao@email.jlu.edu.cn, caskyu224901@yahoo.com.cn, dxiaofeng@jlu.edu.cn, ecwang@jlu.edu.cn, fweiyen@drexel.edu Keywords: Electrospinning, ZnS Nanoparticles, Poly(vinyl alcohol), Nanofibers Abstract.
Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD) analyses revealed that the morphology of the ZnS/PVA nanofibers consists of the dispersion of ZnS nanopaticles with cubic structure in PVA nanofibers.
The structure and properties of the ZnS/PVA nanofibers were characterized. 2.
The diffraction angles at 2θ = 28.75, 47.94, and 57.14 degrees can be assigned to (111), (220), and (311) planes of the cubic structure of ZnS, respectively.
In addition, there is little change in the structure and properties of ZnS nanoparticles upon incorporation into the PVA fiber via electrospinning.
Online since: June 2012
Authors: Ya Li Li, Xiao Yan, Jiao Xie, Xun Lao
Phase structures of the products were analyzed by X-ray diffraction (XRD) (Rigaku D/max 2500v/pc, Japan) using Cukα radiation.
Yacaman, et al., Investigations on magnetic properties and structure for carbon encapsulated nanoparticles of Fe, Co, Ni.
Choi, et al., Structure and magnetic properties of Fe(C) and Co(C) nanocapsules prepared by chemical vapor condensation.
Greiner, et al., Inorganic solid-state chemistry with main group element carbodiimides.
Xie, Synthesis of SiCN Ceramics with Tailored Structures via the Non-oxide Sol-Gel Reaction.
Online since: July 2015
Authors: Mihaela Ligia Ungureşan, Iulia Clitan, Vlad Mureşan, Mihail Abrudean, Zoltan Kovendi, Tiberiu Coloşi
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.
Online since: November 2015
Authors: Zhen Yuan Nie, Jin Lan Xia, Hong Chang Liu, Yun Yang, Lei Wang, Jian Jun Song, Chang Hui Zhao, Ya Long Ma, Xiang Jun Zhen, Hong Rui Zhu, Yi Dong Zhao, Chen Yan Ma
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.
Online since: March 2012
Authors: Cheng Tao Yang, Jing Wan, Yang Gao
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.