scholarly journals Electrochemical and Spectroscopic Studies of Nanocomposites Laden with BaTiO3-grafted-graphene Oxide

2018 ◽  
pp. 319-327
Author(s):  
S. Padmaja ◽  
R. Nimma Elizabeth
Keyword(s):  
Electrochemical Impedance ◽  
Coulombic Efficiency ◽  
Ion Pairs ◽  
Spectroscopic Studies ◽  
Solid Polymer ◽  
Raman Analysis ◽  
Raman Spectroscopic ◽  
Lithium Sulfur Batteries ◽  
Ft Ir ◽  
Ir And Raman

The electrochemical behavior of lithium-sulfur batteries was investigated by means of electrochemical impedance spectroscopy (EIS). Films of NCPEs (PEO+LiCF3SO3+BaTiO3-g-GO) were cast using a novel hot-press technique. The addition of filler in fractional amount to the solid polymer matrix at room temperature further enhances the ionic conductivity. The membranes were subjected to cycling, FT-IR and Raman spectroscopic analyses. The occurrence of ion-ion pairs interaction has been identified using FT-IR and Raman analysis. Cells with this electrolyte have a high coulombic efficiency of 98% and a high cycling stability.

FT-IR and Raman spectroscopic studies on B2O3–PbO–Ag2O glasses dopped with manganese ions

2007 ◽  
Vol 9 (9) ◽  
pp. 850-854 ◽  
Author(s):  
Raluca Ciceo Lucacel ◽  
Carmen Marcus ◽  
V. Timar ◽  
I. Ardelean
Keyword(s):  
Spectroscopic Studies ◽  
Manganese Ions ◽  
Raman Spectroscopic ◽  
Ft Ir ◽  
Ir And Raman

FT-IR and Raman Spectroscopic Studies on B2O3—PbO—Ag2O Glasses Doped with Manganese Ions.

ChemInform ◽  
2007 ◽  
Vol 38 (50) ◽  
Author(s):  
Raluca Ciceo Lucacel ◽  
Carmen Marcus ◽  
V. Timar ◽  
I. Ardelean
Keyword(s):  
Spectroscopic Studies ◽  
Manganese Ions ◽  
Raman Spectroscopic ◽  
Ft Ir ◽  
Ir And Raman

FT-IR AND RAMAN SPECTROSCOPIC STUDIES OF xAg2O · (100 - x)[B2O3 · As2O3] GLASS SYSTEM

2010 ◽  
Vol 24 (01) ◽  
pp. 51-58 ◽  
Author(s):  
S. C. BAIDOC ◽  
I. ARDELEAN
Keyword(s):  
Ir Spectroscopy ◽  
Structural Changes ◽  
Spectroscopic Studies ◽  
Glass System ◽  
Structural Units ◽  
Raman Spectroscopic ◽  
Ir And Raman Spectroscopies ◽  
Ft Ir ◽  
Ir And Raman ◽  
Ft Ir Spectroscopy

Structural analysis of x Ag 2 O · (100-x)[ B 2 O 3 · As 2 O 3] glass system, with 0 ≤ x ≤ 10 mol%, was performed by means of FT-IR and Raman spectroscopies. The purpose of this work is to investigate the structural changes that appear in the B 2 O 3 · As 2 O 3 glass matrix with the addition and increase of silver ion content. Boroxol rings, pyro-, ortho-, di-, tri-, tetra- and penta-borate groups, structural units characteristic to As 2 O 3 were found in the structure of the studied glasses. FT-IR spectroscopy measurements show that BO 3 units are the main structural units of the glass system. The presence of structural units characteristic to Ag 2 O were not directly evidenced by FT-IR spectroscopy. The Raman analysis leads to similar conclusions as the FT-IR measurements.

FT-IR AND RAMAN SPECTROSCOPIC STUDIES OF GADOLINIUM DOPED B2O3 · TeO2 GLASS MATRIX

2007 ◽  
Vol 21 (26) ◽  
pp. 1767-1774 ◽  
Author(s):  
L. GRIGUTA ◽  
I. ARDELEAN
Keyword(s):  
Glass Matrix ◽  
Spectroscopic Studies ◽  
Absorption Characteristic ◽  
Ir Absorption ◽  
Spectroscopic Techniques ◽  
Structural Units ◽  
Raman Spectroscopic ◽  
Ft Ir ◽  
Ir And Raman ◽  
No Absorption

Glasses from x Gd 2 O 3 · (100-x)[ B 2 O 3 · TeO 2] system with 0 ≤ x ≤ 10 mol% have been prepared and studied by means of FT-IR absorption and Raman scattering. Being complementary spectroscopic techniques, both types of measurements FT-IR and Raman revealed that the network structure of the studied glasses is based on BO 3 and BO 4 units placed in different structure groups and also TeO 4, TeO 3 structural units. No absorption characteristic for Gd 2 O 3 was evidenced but some changes in the structure of B 2 O 3 · TeO 2 glass matrix are due to its presence.

scholarly journals FT-IR and Raman spectroscopic studies of ZnF2–ZnO–As2O3–TeO2 glasses

2016 ◽  
Vol 10 (3) ◽  
pp. 329-339 ◽  
Author(s):  
Shaik Kareem Ahmmad ◽  
M.A. Samee ◽  
S.M. Taqiullah ◽  
Syed Rahman
Keyword(s):  
Spectroscopic Studies ◽  
Raman Spectroscopic ◽  
Ft Ir ◽  
Ir And Raman

The FT-IR and Raman Spectroscopic Studies of Some Liquid Crystals

1993 ◽  
Vol 26 (2) ◽  
pp. 293-304
Author(s):  
Mahmut Acimiş ◽  
Sevim Akyüz ◽  
Ayşen Alaman
Keyword(s):  
Liquid Crystals ◽  
Spectroscopic Studies ◽  
Raman Spectroscopic ◽  
Ft Ir ◽  
Ir And Raman

L-Alanyl-glycylglycine: FT-IR and Raman spectroscopic evidence for tripeptide packing in a collagenlike arrangement

Biopolymers ◽  
1984 ◽  
Vol 23 (4) ◽  
pp. 623-627 ◽  
Author(s):  
V. Renugopalakrishnan ◽  
P. H. B. Kloumann ◽  
Rajendra S. Bhatnagar
Keyword(s):  
Spectroscopic Evidence ◽  
Raman Spectroscopic ◽  
Ft Ir ◽  
Ir And Raman

scholarly journals Sonochemical-assisted magnesium borate synthesis from different boron sources

2017 ◽  
Vol 19 (1) ◽  
pp. 81-88 ◽  
Author(s):  
Meral Yildirim ◽  
Azmi Seyhun Kipcak ◽  
Emek Moroydor Derun
Keyword(s):  
High Efficiency ◽  
Synthesis Method ◽  
Spectroscopic Studies ◽  
X Ray Diffraction ◽  
Magnesium Borate ◽  
Ir And Raman Spectroscopies ◽  
Ft Ir ◽  
Surface Morphologies ◽  
Ir And Raman ◽  
Good Agreement

Abstract In this study, sonochemical-assisted magnesium borate synthesis is studied from different boron sources. Various reaction parameters are successfully applied by a simple and green method. X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and Raman spectroscopies are used to characterize the synthesized magnesium borates on the other hand surface morphologies are investigated by using scanning electron microscope (SEM). The XRD analyses showed that the products were admontite [MgO(B2O3)3 · 7(H2O)] with JCPDS (Joint Committee on Powder Diffraction Standards) no. of 01-076-0540 and mcallisterite [Mg2(B6O7(OH)6)2 · 9(H2O)] with JCPDS no. of 01-070-1902. The results that found in the spectroscopic studies were in a good agreement with characteristic magnesium borate bands in both regions of infra-red and visible. According to SEM results, obtained borates were in micro and sub-micro scales. By the use of ultrasonication, reaction yields were found between 84.2 and 97.9%. As a result, it is concluded that the sonochemical approach is a practicable synthesis method to get high efficiency and high crystallinity in the synthesis magnesium borate compounds.

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