The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Biodegradable solid polymer electrolytes based on PVA (polyvinyl alcohol) and amino acid (proline) with different molar mass percentages of ammonium chloride (NH4Cl) were prepared by solution-casting technique using distilled water as solvent. Their structural, thermal, vibrational, and electrical properties were studied. XRD analysis confirms the amorphous nature of the polymer electrolytes. DSC...
An improved frequency dependent AC-conductivity ng of poly(aniline-co-o-fluoroaniline)s (PA-co-o-FAs) has been recorded which are synthesized by in-situ copolymerization of aniline with o-fluoroaniline by oxidation of the monomers mixture (in different molar feed ratios) using aqueous solution of ammonium persulfate as oxidant. The electrical AC conductivity of the copolymers has been measured at...
Room temperature ionic liquid 1-ethyl-3-methylimidazolium hydrogen sulfate (EMIHSO4) incorporated gel polymer electrolyte membranes were prepared with PEO/PVdF blend containing 15 wt % zinc triflate (Zn (CF3SO3)2) salt. These electrolyte membranes with different ionic liquid concentrations were characterized in detail by X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, scanning...
Solid solution of general formula Bi2V1−xTix/2Nbx/2O5.5−δ (0.1 ≤ x ≤ 0.25) were synthesized and characterized by XRD, SEM, FTIR spectroscopy, and AC impedance spectroscopy. The detail XRD analysis reveals coexistence of two phases, i.e., β-orthorhombic and tetragonal at room temperature in these compounds. For lower x (˂ 0.15), β-orthorhombic phase dominates while at higher doping concentration tetragonal...
Herein, we report the frequency-dependent AC conductivity of poly(aniline-co-m-nitroaniline)s which were synthesized by chemical oxidation of aniline and m-nitroaniline using ammonium persulfate as an oxidizing agent by in situ copolymerization approach. AC conductivity of the copolymers was recorded in the frequency range of 10−3 to 108 Hz. The imaginary and real part of permittivity of as-synthesized...
This work reports the body-centered cubic (BCC) γ-phase stabilization of Bi2O3 nanostructures by means of varying Ce doping concentration and its effect on the optical, ionic transport and dielectric properties. The Rietveld analysis of X-ray diffraction pattern confirmed the formation of nanocrystalline Ce-doped Bi2O3 composite nanostructure having BCC as main phase in addition with small amount...
Among sustainable technologies, TiO2 photocatalysts are promising materials as an alternative to conventional methods that are being used for eliminating problems such as water, air, and environmental pollution originating from industrial waste. In this work, TiO2 film was produced by ultrasonic spray pyrolysis technique and annealed in oxygen, argon, and nitrogen atmospheres. The effect of the annealing...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.