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LiSn 2 P 3 O 12 with sodium (Na) super ionic conductor (NASICON)-type rhombohedral structure was successfully obtained at low sintering temperature, 600 °C via citric acid-assisted sol-gel method. However, when the sintering temperature increased to 650 °C, triclinic structure coexisted with the rhombohedral structure as confirmed by X-ray diffraction analysis...
An electrochemical sensor for simultaneous determination of 5-hydroxytryptamine (5-HT) and dopamine (DA) was developed in this paper based on an ionic liquid functionalized-graphene (IL-graphene) modified glassy carbon electrode. Transmission electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis were used to characterize the formation of the IL-graphene...
Mn x V 6−x O 13 ( x = 0.01, 0.02, 0.03, 0.04) were successfully synthesized via a simple hydrothermal method followed by heat-treatment. Both crystal domain size, electronic conductivity and the lithium diffusion coefficient of the Mn x V 6−x O 13 samples were influenced by the doping amount of Mn 2+...
Nanocomposite polymer electrolyte (NCPE) films based on polyethylene oxide (PEO) complexed with lithium perchlorate (LiClO 4 ) and nanosized ferroelectric ceramic fillers such as BaTiO 3 , SrTiO3 have been prepared using solution cast technique. The films showed very good mechanical stability when exposed to ambient atmospheres for prolonged periods. Lithium ion transport...
A novel cobalt-free perovskite La 0.6 Ba 0.4 Fe 0.8 Ni 0.2 O 3 − δ (LBFN) powder was synthesized using a combustion method. The phase composition, electrical conductivity, thermal expansion coefficient (TEC), and electrochemical properties of LBFN were systematically investigated. The X-ray diffraction (XRD)...
H + and Co 2+ ions co-doped polyaniline were synthesized by cyclic voltammetry onto the stainless steel mesh with various concentrations of cobalt chloride (CoCl 2 · 6H 2 O) in electrolyte. The structure and morphology of polyaniline (PANI) and PANI/Co 2+ films were characterized by Fourier transform infrared (FT-IR), X-ray diffraction...
Hyperbranched poly(glycidol) containing hydroxyl groups was firstly synthesized via anionic polymerization and then reacted with 2-bromoisobutyl bromide to form macroinitiator HPG-Br. Finally, a hyperbranched star polymer (HPG-PPEGMA) was successfully prepared by atom transfer radical polymerization (ATRP) of poly(ethylene glycol) methyl ether methacrylate using HPG-Br as macroinitiator. The...
The structural, magnetic, and electrical properties of nano- and bulk samples of LaCoO 3 , prepared by a urea combustion method, are investigated in this paper. The structures of phases, calcined at different temperatures, were refined in two different space groups rhombohedral R-3c and monoclinic I2/a , and a good agreement was obtained between the observed...
A facile microwave-assisted ethylene glycol method is developed to synthesize the SnO 2 nanoparticles dispersed on or encapsulated in reduced graphene oxide (SnO 2 -rGO) hybrids. The morphology, structure, and composition of SnO 2 -rGO are investigated by scanning electron microscopy, transmission electron microscope, thermo-gravimetric analyzer, X-ray diffraction,...
A trilayer carbon nanotube (CNT)/Al 2 O 3 /polypropylene (PP) separator is prepared by means of simple tape casting of Al 2 O 3 and CNT layers onto a commercial PP separator, respectively. The electrochemical performance of the trilayer separator in the lithium-sulfur batteries is compared with those of the PP and the Al 2 O ...
Electroplated cadmium stannous selenide (Cd x Sn 1− x Se) thin films were coated on indium-doped tin oxide (ITO) conducting glass substrates from aqueous bath solutions containing CdCl 2 , SnCl 2 , and Na 2 SeO 3 . The x value was tuned by change in metal ion source concentration...
In this study, poly( P -phenylenediamine/ZnO) (PpPD/ZnO) nanocomposite (NC) under ultrasonic conditions was synthesized and characterized. The presence of zinc oxide nanoparticles changed the morphology of PpPD considerably as confirmed by SEM observations. Hydrazine electrooxidation at novel modified carbon paste electrodes (CPE) with supported NC was investigated by cyclic voltammetry...
Blending of polymers is one of the most useful methods for modulating the conductivity of solid polymer electrolytes. Blend polymer electrolytes have been prepared with polyvinyl alcohol (PVA)-polyacrylonitrile (PAN) blend doped with ammonium thiocyanate with different concentrations by solution casting technique, using dimethyl formamide (DMF) as the solvent. The prepared electrolytes are...
In this paper, the electrochemical performance of a new low-temperature electrolyte, 0.9 mol L −1 lithium oxalyldifluoroborate (LiODFB)/LiBF 4 (5.365:1, by mass) mixed salts in the ethylene carbonate (EC)/dimethyl sulfite (DMS)/ethyl methyl carbonate (EMC) mixed solvent (1:1:3, by volume, the same below), is studied to seek the promising candidate for advanced low-temperature...
The adsorption and corrosion inhibition behavior of strawberry fruit extract at steel/1 M HCl and steel/0.5 M H 2 SO 4 interfaces were investigated using gravimetric and electrochemical methods at 25 and 60 °C. Results obtained showed that the extract inhibited the acid-induced corrosion of mild steel which was more pronounced in HCl than H 2 SO 4 ...
The characterization of polyvinyl chloride (PVC)-based cerium(IV) sulphate (CS) composite membrane was carried out by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The composite membrane with 0.175 g PVC and 0.375 g CS proves good chemical, mechanical and thermal stabilities as well as ion exchange capacity. The Teorell, Meyer and Sievers (TMS) method was used to determine the electrochemical...
The glass-ceramic samples with the general formula: (100 − x ) [0.4Li 2 O-0.1GeO 2 -0.6P 2 O 5 ] + x 40-h ball-milled Al 2 O 3 (where x = 0, 2, 4, 6, 8, 10, and 12 mol%) were synthesized by high-energy ball milling technique. X-ray diffraction (XRD) analysis revealed that the phases...
The pure phase P2-Na 2/3 Ni 1/3 Mn 2/3 O 2 was synthesized by a solid reaction process. The optimum calcination temperature was 850 °C. The as-prepared product delivered a capacity of 158 mAh g −1 in the voltage range of 2–4.5 V, and there was a phase transition from P2 to O2 at about 4.2 V in the charge process. The P2 phase exhibited...
An organic-inorganic composite cation exchanger poly (3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) Zr(IV) phosphate was prepared by the sol-gel method for removal of cadmium, a toxic heavy metal pollutant causing adverse effects on human health. The synthesized material was characterized by various techniques such as thermo gravimetric analysis/differential thermal analysis/differential...
Structural and electrical properties of the ternary ionic–electronic conducting glass system x AgI–(1 − x )[0.67Ag 2 O–0.33V 2 O 5 ], where x = 0.4, 0.5, 0.6, 0.7, and 0.8 were studied for emphasizing the influence of silver iodide concentration on the transport properties of the based vanadate glasses. The glasses were...
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