A Na-rich cathode is developed by grafting the electron-withdrawing -SO3Na group on polyaniline chains. Due to the immobile doping and effective activation of the sulfonate group, this polymer demonstrates a high capacity (133 mA h g(-1)) and excellent cyclability through a cation-exchange reaction, offering a low cost and sustainable cathode for SIBs.

Ultrafine Sb nanocrystals, uniformly distributed in a carbon matrix with a microspherical morphology, were synthesized by one-pot spray pyrolysis. The Sb-carbon composite microspheres exhibited good Na-storage properties with stable cyclability, a capacity retention of 90% over 100 cycles, and good rate performance.

Valence change memories, in which internal redox reactions control the resistance are promising candidates for resistive random access memories (ReRAMs) and neuromorphic computing elements. In this context, La2NiO4+? (L2NO4), a mixed ionic-electronic conducting oxide, well known its highly mobile oxygen interstitial ions, emerges as potential switching material novel L2NO4-based memristive devi...

The electrochemical properties of polymerized aniline (PANI) and melamine (PMEL) that were copolymerized (PANIMEL) on a glassy carbon electrode (GCE) had been coated with functionalized multiwalled nanotubes (fMWCNT) to form PANIMEL/fMWCNT/GCE film studied, an aim toward energy storage (EES). A number factors, such as the choice working electrode, electrolyte, switching potential, applied scan ...

Abstract Lithium‐rich, manganese‐based layered oxides are considered one of the most valuable cathode materials for next generation high‐energy density lithium‐ion batteries (LIBs) their high specific capacity and low cost. However, practical implementation in LIBs is hindered by rapid voltage/capacity decay on cycling long‐standing contradictions between redox kinetics volumetric energy due to...

A general method of preparing nanocomposites from a metal-organic framework coated with hydroxyl, pyrrolyl and/or carboxyl functionalized organics is introduced. Pyrolysis of these nanocomposites gives anode materials with improved discharge capacity (750 mA h g(-1)) and cyclability. They also show enhanced Coulombic efficiency over the initial 5-10 cycles and decreased internal impedance.

The commercialization of lithium-sulfur batteries is hindered by low cycle stability and low efficiency, which are induced by sulfur active material loss and polysulfide shuttle reaction through dissolution into electrolyte. In this study, sulfur-impregnated disordered carbon nanotubes are synthesized as cathode material for the lithium-sulfur battery. The obtained sulfur-carbon tube cathodes d...

The use of perovskite materials for thermochemical energy storage and oxygen separation has been gaining momentum in recent years due to their ability topotactically exchange large volumes oxygen, chemical structural flexibility. B-site substituted SrCoO 3- ? derivatives have previously investigated as promising intermediate temperature solid oxide fuel cell cathodes the stabilization a 3 C str...