Search results

FTIR spectroscopy was used to elucidate the molecular structure of PAni-ES.
PAni-ES shows globular structures consistent with those reported elsewhere.
Gr particles show sheets and flaky structures.
Centi: Journal of Energy Chemistry Vol. 22 (2013), p. 151–173
Kim: Journal of Materials Chemistry Vol. 20 (2010), p. 1907–1912

Instrumentation X-ray photoelectron spectroscopy (XPS) was used to study the surface chemistry of PAM/PPy hydrogel.
Results and Discussion Characterization of the PAM/PPy hydrogels Surface chemistry of the PAM and PAM/PPy hydrogels was studied by XPS in both survey scan and high-resolution scan.
These signals are attributed to the combination of PAM and PPy structures.
SA, as the dopant, has anions that interact with the PPy structure.
This leads to the squeezing of SA anions out of the PPy structure.

Zirconium dioxide, has three allotropic structures depending on the temperature, being monoclinic at room temperature with a change in the volume of the unit cell between 3 to 5 %.
Garvie et al. report that a fine metastable tetragonal phase could be dispersed into a cubic matrix, forming a composite ceramic structure.
Major scientific advances are required in skills such as the ability to control stoichiometry, defect chemistry, crystallinity, and diffusion at interfaces.
By nature of complex structure and chemistry, active interfaces in oxide ceramics create a rich diversity of future technologies, but scientific advances will require comprehensive efforts on theoretical issues.
This problem can be overcome by controlling and understanding structure with intermediate-range order (IRO) being the key for tapping the intrinsic strength of glasses.

The debinding step can be a source of problems, such as damage in the structure due to rapid gas evolution.
A lacquer (Enthone B.V.) was applied to seal off the open porous structure.
This contact angle depends on the surface chemistry of the particles.
One way of controlling this surface chemistry is to control the surface charge.
The adsorbed chains form an add-layer on the particle hence altering the particle surface chemistry.

In 1963, Merrifield first set up the method of the solid-phase synthesis for peptides, symbolizing the starting of chemistry era with solid-phase organic synthesis.
The chemical structure of PAM resin (a) and AM resin (b).
Chemical structure of Wang resin.
Chemical structure of Oxime resin.
Chemical structure of CLEAR resin.

The nanotubes of about 20 nm in diameter are nearly uniform, and they are open-ended possessing hollow tubular structure (shown in Fig. 2(a)), which is similar to the results reported by Kasuga et al [17].
Navio, Photocatalytic deactivation of commercial TiO2 samples during simultaneous photo reduction of Cr(VI)and photo oxidation of salicylic acid, Journal of Photochemistry and Photobiology A: Chemistry. 138 (2001) 79-85
Solar photocatalytic degradation of p-nitropenol assisted by cuprous oxide, Environmental Chemistry. 23 (2004) 490-494
Deng, Enhanced TiO2 photocatalytic degradation of bisphenol A by βcyclodextrin in suspended solutions, Journal of Photochemistry and Photobiology A: Chemistry. 5 (2005) 1-8
Zhang, Zhang S L, Study on composition, structure and formation process of nanotube Na2Ti2O4(OH)2, Dalton Trans. 20 (2003) 3898-3901

The purpose of this study is to determine the effect of the addition of 2 % SrO on crystal structure, physical and magnetic properties of BaO6Fe2O3.
But for the crystal structure of XRD analysis there is no change, a single phase is formed, namely BaFe12O19.
The formation of secondary phase SrFe12O19 was not formed due to the substitution of atomic Sr into the Barium ferrite crystal structure.
The additive SrO (2 wt.%) did not affect the crystal structure, where after sintering 1150oC, a single phase BaFe12O19 was obtained.
Salem, Features of Crystal Structure and Magnetic Properties of M-type Ba-hexaferrites with Diamagnetic Substitution, International Journal of Materials Chemistry and Physics Vol. 1, No. 3, (2015), pp. 286-294

Effect of Thermal Agingon the Stress Corrosion Cracking Sensitivity of Z3CN20.09M Stainless Steel Huanchun Wu1,a*, Wenxin Ti1,2,b, Chengtao Li1,c, Zejie Zhu3,d, Fahe Cao4,e, Kewei Fang1,f, Guodong Zhang1,g and Fei Xue1,h 1Plant Life Management Technology Center, Suzhou Nuclear Power Research Institute, Suzhou 215004, China 2Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China 3Department of chemistry, Zhejiang University, Hangzhou 310000, China 4School of Materials, Sun Yat-sen University, Guangzhou, 510006, China awuhuanchun1@163.com, btiwenxin@cgnpc.com.cn, clichengtao@cgnpc.com.cn, dzhuzejie@zju.edu.cn, ecaofh5@mail.sysu.edu.cn, ffangkewei@cgnpc.com.cn, gzhangguodong@cgnpc.com.cn, hxuefei@cgnpc.com.cn Keywords: Thermal aging, Embrittlement, Scanning electrochemical microscopy, Stress corrosion cracking Abstract.
Table 2 shows the water chemistry at room temperature.
Table 2 High temperature water chemistry.
Landolt, Passive films on stainless steels—chemistry, structure and growth, Electrochim.

Removal of Organic Contaminants from Textile Wastewater by Adsorption on Natural Biosorbent Zainab Hussain1,a, Zeyad Fadhil2,b, Sameer Kareem3,c, Salam Mohammed4,d, Emad Yousif5,e* 1Department of Chemistry, College of Science, Misan University, Misan, Iraq 2College of Pharmacy, Thi-Qar University, Thi-Qar, Iraq 3Department of Chemistry, College of Science for women, Baghdad University, Baghdad, Iraq 4Department of Chemical and Petrochemical Engineering, College of Engineering and Architecture,University of Nizwa,Oman 5Department of Chemistry, College of Science, Al-Nahrain University, Baghdad, Iraq azainabalaa@uomisan.edu.iq, bz_fadil@yahoo.com, csameer_k_1960@yahoo.com, dsalam.mohammed@unizwa.edu.om, e*emad_yousif@hotmai.com Keywords: Adsorption; Safranin O, Adsorption Isotherm, Thyme leaves.
Fig. 2: SF-O dye Chemical Structure B.
E-Journal of Chemistry 7 (2010) 975-984

Corrosion behavior of low nickel alloy high strength steel in seawater containing sulfate-reducing bacteria Fushao Li 1,3, a, Maozhong An 2 and Dongxia Duan3 1 Chemistry and Chemical Engineering School, Qujing Normal University, Qujing 655011, China 2 Chemical Engineering School, Harbin Institute of Technology, Harbin 150001, China 3 State Key Laboratory for Marine Corrosion and Protection, Qingdao 266071, China alifushao@126.com Keywords: Sulfate-reducing bacteria; Microbiologically influenced corrosion; High strength steel.
Consequently the metals/solution interfacial electrochemical properties and physical structures will be altered considerably by the microorganisms’ metabolic activities, and eventually these metal materials would exhibit some peculiar and unique corrosion characteristics, a phenomenon well-known as microbiologically influenced corrosion (MIC).
Fig.2 Time-depending EIS spectra of LNAHSS exposed to MSRB a) Nyquist diagram, b) Bode modulus diagram, c) Bode phase angel diagram Trying to understand the corrosion behavior of LNAHSS in the MSRB medium, several ways of our thinking have been tentatively presented: 1) SRB prospered in the culture media, and in less than one day immediately after inoculation the solution stank badly of characteristic “rotten egg” odder due to emission of hydrogen sulfide; Production of S2- could be taken as excretion of SRB in a certain sense, and, if “viewed” from the coupon surface, this excretion would look like scattered rain drops from the SRB cells; So, the layer of iron sulfides was not evenly grown and the internal stress was created; Consequently, sulfides layer tended to rupture or crack. 2) On the other hand, SRB biofilm also tended to cause the localized breakdown due to localized chemistry beneath it when the biofilm was not uniformly grown on the coupon surface. 3) Once this sulfide layer
In the following researching, in order to better understand the corrosion mechanisms of LNAHSS in the SRB-containing media, the chemistry of corrosion products in media containing SRB needs to be further investigated.
Duan, Roles of Sulfur-containning Metabolites by SRB in Accelerating Corrosion of Carbon Steel, Chinese Journal of Inorganic chemistry 25 (2009) 13-18.