synthesis of europium oxide (EuO) nanoparticles in heteroatom doped carbon nanofibers for boosting the cycling stability of supercapacitors.

Maintaining a high specific energy without losing cycling stability is the focus of the supercapacitor field. In this study, carbon nanofibers including europium oxide nanoparticles (CNF/EuO) have been synthesized in the presence of thiourea a simple approach and applied for the first time as an electrode for SCs. The CNF/EuO-1 electrode doped with nitrogen and sulfur heteroatoms possessed a favorable specific capacitance of 183.

Tailoring the phase composition of carbon-coated nickel sulfides to achieve a high specific capacitance.

As significant transition metal sulfides, nickel sulfides integrated with carbon were successfully synthesized in the presence of polyethylenimine and glutaraldehyde with a solvothermal route at 180 °C followed by carbonization. Glutaraldehyde prevented complete sulfur loss and allowed the formation of a mixed phase of nickel sulfide. The electrochemical performances of pure NiS, NiS@C0, NiS/NiS@C1, and NiS/NiS@C2 electrodes were tested by a series of measurements.

Impacts of Sol-Gel Auto-Combustion and Ultrasonication Approaches on Structural, Magnetic, and Optical Properties of Sm-Tm co-Substituted SrBaFeO Nanohexaferrites: Comparative study.

In this paper, we introduced a comparative study of Sm-Tm-substituted Sr-Ba nanohexaferrites (NHFs), SrBaTmSmFeO with x = 0.00-0.05, manufactured via both citrate sol-gel auto-combustion and ultrasonication approaches.

Structural, magnetic, optical properties and cation distribution of nanosized CoZnTmFeO (0.0 ≤ x ≤ 0.04) spinel ferrites synthesized by ultrasonic irradiation.

This study expressed the influence of Tm substitution on the structural, optical and magnetic properties of Co-Zn spinel ferrites (CoZnTmFeO (0.0 ≤ x ≤ 0.04)).

Magnetically Recyclable Fe3O4@His@Cu Nanocatalyst for Degradation of Azo Dyes.

Fe3O4@His@Cu magnetic recyclable nanocatalyst (MRCs) was synthesized by reflux method using L-histidine as linker. The composition, structure and magnetic property of the product were characterized by X-ray powder diffraction (XRD), Scanning electron microscopy (SEM), Fourier Transform infrared spectroscopy (FT-IR) and vibrating sample magnetometry (VSM). Powder XRD, FT-IR and EDAX results confirmed that the as-synthesized products has Fe3O4 with spinel structure and Cu nanoparticles with moderate crystallinity without any other impurities.