MnO nano-octahedrons embedded in nitrogen-doped graphene oxide as potent anode material for lithium-ion batteries.

Unlabelled: MnO nano-octahedrons embedded in N-doped graphene oxide (MNGO) nanosheets were synthesized using a simple, energy-efficient, and rapid microwave-digested hydrothermal route in a single step. The structural and morphological aspects of synthesized materials were evaluated by XRD, IR, Raman, FE-SEM, and HR-TEM techniques. Then, the composite MNGO was tested for its Li-ion storage properties and compared with reduced graphene oxide (rGO) and MnO materials.

Influence of Chloride Ion Substitution on Lithium-Ion Conductivity and Electrochemical Stability in a Dual-Halogen Solid-State Electrolyte.

Li conducting halide solid-state electrolytes (SEs) are developing as an alternative to contemporary oxide and sulfide SEs for all-solid-state batteries (ASSBs) due to their high ionic conductivity, excellent chemical and electrochemical oxidation stability, and good deformability. However, the instability of halide SEs against the Li anode is still one of the key challenges that need to be addressed. Among halides, fluorides have shown a wider electrochemical stability window due to fluoride's high electronegativity and smaller ionic radius.

Stable Cycling Lithium-Sulfur Solid Batteries with Enhanced Li/LiGePS Solid Electrolyte Interface Stability.

We herein explore a facile and straightforward approach to enhance the interface stability between the lithium superionic conducting LiGePS (LGPS) solid electrolyte and Li metal by employing ionic liquid such as 1 M lithium bis(trifluoromethanesulfonyl)imide (LiTFSI)/ N-methyl- N-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYRTFSI) as the interface modifier. The results demonstrated the presence of 1 M LiTFSI/PYRTFSI ionic liquid; the interface stability at the electrode/solid electrolyte (i.e.

Stabilizing LiSnPS/Li Interface via an in Situ Formed Solid Electrolyte Interphase Layer.

Despite the extremely high ionic conductivity, the commercialization of LiGePS-type materials is hindered by the poor stability against Li metal. Herein, to address that issue, a simple strategy is proposed and demonstrated for the first time, i.e.

Facile hydrothermal synthesis of urchin-like cobalt manganese spinel for high-performance supercapacitor applications.

A facile hydrothermal method has been adopted to synthesize the spherical urchin-like hierarchical CoMnO nanostructures on the nickel foam substrate. The as-synthesized urchins have an average diameter of ∼3-7μm with numerous self-assembled nanoneedles grown radically in all the directions from its center with a huge void space between them. For comparison, we have also studied the electrochemical as well as other physicochemical properties of parent simple CoO and MnO materials, which were also synthesized by a similar hydrothermal method.

Charge storage, electrocatalytic and sensing activities of nest-like nanostructured CoO.

We synthesized nanostructured CoO samples using anionic (SDS), cationic (CTAB) and nonionic (Triton X-100) surfactant molecules in hydrothermal conditions and subsequent calcination. This approach facilitates the synthesis of porous CoO material with bundle-like-sheet, nest-like and flake-like morphologies with specific surface areas in the range of 50-77mg. Among these materials, the nest-like nanostructured CoO material has unique pore architecture, larger pore volume, low solution and charge transfer resistance, and found to be an active material for charge storage, electrocatalytic and sensing applications.

A Vanadium(V) Oxide Nanorod Promoted Platinum/Reduced Graphene Oxide Electrocatalyst for Alcohol Oxidation under Acidic Conditions.

A Pt-V O /rGO ternary hybrid electrocatalyst was designed by using active vanadium(V) oxide (V O ) nanorods and reduced graphene oxide (rGO) components. The V O nanorods were synthesized by a simple polyol-assisted solvothermal method and were incorporated uniformly onto rGO sheets by intermittent microwave heating. Subsequently, Pt nanoparticles (2-3 nm in size) were deposited over the V O /rGO composite by the conventional polyol reflux method.

Vanadium pentoxide nanochains for high-performance electrochemical supercapacitors.

We have synthesized unique hierarchical one dimensional (1D) nanochains of V2O5 by employing simple hydrothermal method using cetyltrimethylammonium bromide (CTAB) as a soft template. The electrochemical performance of resulting V2O5 electrode materials was evaluated by cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy techniques. The V2O5 nanochains (V2O5-ctab) show maximum specific capacitance of 631 F g(-1) at a current density of 0.