Nitrogen-containing carbon spheres with hollow core and mesoporous shell (NHCS), capable of confining Se at levels as high 72 wt % has been demonstrated to exhibit appreciable electrochemical behavior 52 61 loading. In particular, confined NHCS cathode exhibits 265 mAh/g 10C rate retains 75% initial capacity 2C up 10 000 cycles an insignificant decay 0.0025% per cycle, which is ever first report on the extended cycle life Li–Se batteries. Due negligible difference found between transport...

Abstract Electrochemical energy storage and conversion devices are very unique important for providing solutions to clean, smart, green sectors particularly stationary automobile applications. They broadly classified overviewed with a special emphasis on rechargeable batteries (Li‐ion, Li‐oxygen, Li‐sulfur, Na‐ion, redox flow batteries), electrocatalysts, membrane electrolytes fuel cells. The critical challenges the development of sustainable systems intrinsically limited density, poor rate...

Carbon aerogel, capable of performing as a conductive additive and potential host to accommodate higher sulfur content offers better polysulfide confining matrix also exhibit appreciable electrochemical behavior with regard 60 wt% sulfur.

Since liver cancer is such an aggressive illness, improving patient outcomes requires early identification. This paper presents a novel detection technique that blends Extreme Gradient Boosting (XGBoost) with Convolutional Neural Networks (CNNs). Medical image complex feature extraction strong suit for CNNs, and XGBoost potent classifier excels at processing high-dimensional data. The suggested hybrid model attempts to improve accuracy through integrating the deep powers of CNNs effective...

Olivine-type lithium orthophosphate Li(Co0.5Ni0.5)PO4 was synthesized in a solid state reaction at 800°C air. Infra-red spectroscopy, x-ray and neutron powder diffraction were used to characterize the as-prepared compound its electro-oxidized analogue. Rietveld analysis illustrate that is isostructural with LiNiPO4 LiCoPO4 lattice parameters larger than former smaller latter. The Rietveld-refined Ni:Co ratio found be 0.498(4):0.502(4) no evidence for long-range ordering or mixed Li/Ni/Co...

New, iron-based, nanocrystals of Fe₅(PO₄)₄(OH)₃·2H₂O and Sn-incorporated were synthesized their electrocatalytic OERs enhanced because the presence PO₄³⁻ligands Sn incorporation.

Novel Li_1.2Mn_0.6Ni_0.1Co_0.1O₂ hollow microspheres, formed out of the hierarchically arranged nanocrystalline particles containing rhombohedral and monoclinic phases exhibit synergistically improved capacity 242 mA h g⁻¹ with 97% coulombic efficiency.

Controlling "polysulfide dissolution" and pacifying shuttle" hold the key in developing a lithium–sulfur battery with superior electrochemical performance. Further, exploration of concept electrocatalysts plays significant role enhancing reversibility polysulfides battery. Herein, ruthenium nanoparticles-decorated porous, hollow carbon spheres have been successfully prepared deployed as electrocatalyst well sulfur host assembly. Interaction nanoparticles has explained appropriate...

Corn silk is a waste material obtained from corn that contains carbohydrates, proteins, and vitamins. Interestingly, corn-silk-derived carbon (CSC) after activation found to possess larger specific surface area (2550 m2 g–1) appreciable pore volume (0.95 cm3 g–1). In the present investigation, CSC electrodes are used fabricate symmetric coin pouch cells individually investigated for electrochemical performance in half full cell assembly systematically. Half-cell of exhibits maximum capacity...

A new green composite of nanocrystalline Mn₂O₃, <italic>viz.</italic>Mn₂O₃/HHC containing biocarbon derived from human hair, has been exploited for the first time as an anode that demonstrates superior capacity and rate capability in lithium-ion batteries.

Ascorbic acid aided inside-out Ostwald ripening promotes the formation of Mn₂O₃ microspheres with a hollow interior surface that exhibits an appreciable capacity 610 mA h g⁻¹, even after completing 100 cycles.

Mn₂O₃ microcubes, symmetrically formed out of the systematic stacking nanoflakes, built with nanoparticles in 30–50 nm range have been obtained from a simple co-precipitation method.