A novel ultra-lightweight three-dimensional (3-D) cathode system for lithium sulphur (Li-S) batteries has been synthesised by loading sulphur on to an interconnected 3-D network of few-layered graphene (FLG) via a sulphur solution infiltration method. A free-standing FLG monolithic network foam was formed as a negative of a Ni metallic foam template by CVD followed by etching away of Ni. The FL...

The present study describes a novel strategy for preparing thin Silicon 2D and 3D electrodes for lithium ion batteries by a spin coating method. A homogeneous and stable suspension of Si nanoparticles (SiNPs) was prepared by dispersing the nanoparticles in 1-methyl-2-pyrrolidone (NMP) or in the room temperature ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (Pyr14T...

Introduction: Li metal is an ideal anode material due to its low density (0.534 g cm -3 ), the lowest negative electrochemical potential (-3.040 V vs. standard hydrogen electrode) and extremely high theoretical special capacity (3860 mAh g -1 ), which is ten times as high as that of carbonaceous materials. However, several seemingly insurmountable barriers, including limited Columbic efficiency...

We report the highly stable supercapacitive performance of one-dimensional (1D) nanoneedles of brookite (b) TiO2 synthesized on a conducting glass substrate. The 1D b-TiO2 nanoneedles synthesized over a large area array utilizing hot-filament metal vapor deposition (HFMVD) were 24–26 nm wide, 650 nm long and tapered in a downward direction. X-ray photoemission spectroscopy (XPS) revealed their ...

We report a facile synthesis of β-SnWO4 nanoparticles via microwave heat treatment using SnCl2 and H2WO4 in the presence tamarind seed powder. An X-ray diffraction analysis confirmed crystalline nature revealing cubic structure nanoparticles. The morphological features were visualized scanning electron microscope that exhibited homogenously distributed clusters nanoparticles, which further tran...

Growing MnO2 nanocrystals in the bulk of porous carbon nanofibers is conducted in a KMnO4 aqueous solution aimed to enhance the electrochemical performance of MnO2. The rate of redox reaction between KMnO4 and carbon was controlled by the concentration of KMnO4 in a neutral solution. The MnO2 nanoparticles grow along with (211) crystal faces when the redox reaction happens on the surface of fib...

The graphite/silicon-based diffusion-dependent electrodes (DDEs) are one of the promising electrode designs to realize high energy density for all-solid-state batteries (ASSBs) beyond conventional composite design. However, also suffers from large initial irreversible capacity loss and fade caused by significant volume change during cycling, which offsets advantages DDEs in ful-cell configurati...

Two-dimensional (2D) Mo1.33C MXene renders great potential for energy storage applications and is mainly studied in the sulfuric acid (H2SO4) electrolyte. However, H2SO4 limits electrode to 0.9 V symmetric devices 1.3 asymmetric devices. Herein, we explore electrochemical behavior of LiCl In comparison H2SO4, electrolyte a neutral salt with high solubility at room temperature low hazardousness....

Alloying materials (e.g., Si, Ge, Sn, Sb, and so on) are promising anode for next-generation lithium-ion batteries (LIBs) sodium-ion (SIBs) due to their high capacity, suitable working voltage, earth abundance, environmental friendliness, non-toxicity. Although some important breakthroughs have been reported recently these materials, dramatic volume change during alloying/dealloying causes seve...

A familiarity with denaturation process is highly significant in understanding the DNA replication, manipulation, and interactions involving DNA double helix stability. We have performed molecular dynamics simulation on B-DNA duplex (CGCGAATTGCGC) at different temperatures. At each temperature, configurational entropy was estimated using the covariance matrix of atom-positional fluctuations. By...