Silver Nanocoating of LiNiCoMnO Cathode Material for Lithium-Ion Batteries.

Surface coating has become an effective approach to improve the electrochemical performance of Ni-rich cathode materials. In this study, we investigated the nature of an Ag coating layer and its effect on electrochemical properties of the LiNiCoMnO (NCM811) cathode material, which was synthesized using 3 mol.% of silver nanoparticles by a facile, cost-effective, scalable and convenient method.

Development and Evaluation of Crocetin-Functionalized Pegylated Magnetite Nanoparticles for Hepatocellular Carcinoma.

Liver cancer remains among the leading causes of cancer-related deaths worldwide. This is due to many reasons, including limitations of available drugs, late diagnosis due to the overlapping symptoms with many other liver diseases, and lack of effective screening modalities. Compared to conventional chemotherapy, targeted drug delivery systems are advantageous in many ways, as they minimize drug resistance and improve therapeutic value for cancer patients.

Effect of Cationic (Na) and Anionic (F) Co-Doping on the Structural and Electrochemical Properties of LiNiMnCoO Cathode Material for Lithium-Ion Batteries.

Elemental doping for substituting lithium or oxygen sites has become a simple and effective technique to improve the electrochemical performance of layered cathode materials. Compared with single-element doping, this work presents an unprecedented contribution to the study of the effect of Na/F co-doping on the structure and electrochemical performance of LiNiMnCoO. The co-doped LiNaNiMnCoOF (z = 0.

Nanostructured Molybdenum-Oxide Anodes for Lithium-Ion Batteries: An Outstanding Increase in Capacity.

This work aimed at synthesizing MoO and MoO by a facile and cost-effective method using extract of orange peel as a biological chelating and reducing agent for ammonium molybdate. Calcination of the precursor in air at 450 °C yielded the stochiometric MoO phase, while calcination in vacuum produced the reduced form MoO as evidenced by X-ray powder diffraction, Raman scattering spectroscopy, and X-ray photoelectron spectroscopy results. Scanning and transmission electron microscopy images showed different morphologies and sizes of MoO particles.

Amorphous MoO-Type/Carbon Nanocomposite with Enhanced Electrochemical Capability for Lithium-Ion Batteries.

An amorphous MoO/carbon nanocomposite (m ≈ 5) is fabricated from a citrate-gel precursor heated at moderate temperature (500 °C) in inert (argon) atmosphere. The as-prepared MoO-type/C material is compared to α-MoO synthesized from the same precursor in air. The morphology and microstructure of the as-prepared samples are characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Raman scattering (RS) spectroscopy.

Silver/quartz nanocomposite as an adsorbent for removal of mercury (II) ions from aqueous solutions.

Silver nanoparticles (AgNPs) and silver/quartz nanocomposite (Ag/Q)NPs)) were synthesized by sol-gel method using table sugar as chelating agent. The synthesized nanosized materials were used for mercury ions adsorption from aqueous solutions The materials were characterized by X-ray diffraction (XRD), Transmission Electron microscope (TEM), and surface area (BET). Adsorption of Hg (10 mg/l) is strongly dependent on time, initial metal concentration, dose of adsorbent and pH value.

Doped Nanoscale NMC333 as Cathode Materials for Li-Ion Batteries.

A series of Li(NiMnCo)O ( = Al, Mg, Zn, and Fe, = 0.06) was prepared via sol-gel method assisted by ethylene diamine tetra acetic acid as a chelating agent. A typical hexagonal α-NaFeO structure (R-3m space group) was observed for parent and doped samples as revealed by X-ray diffraction patterns.

Facile one step synthesis method of spinel LiMnO cathode material for lithium batteries.

This study succeeded to prepare three pure phases of MnO, MnO beside one of the best cathode materials, spinel LiMnO. LiMnO with high phase purity and crystallinity was synthesized by a facile, cost effective and one step synthesis method. The structure and morphology of the powders were studied in detail by means of X-ray diffraction (XRD), thermogravimetric analysis (TGA), field emission scanning electron microscopy (FESEM), transmission electron microscope (TEM) and surface area.