Sonochemically synthesized hydride-stabilized boron nanosheets via radical-assisted oxidative exfoliation for energy storage applications

Abstract

Metal-free hydride stabilized boron nanosheets were synthesized in an aqueous medium in mg scale and their suitability as an anode material for Li-ion batteries in half-cell mode was demonstrated.

Mono-Element Boron Nanomaterials for Energy Conversion and Storage: Preparation, Recent Progress, and Perspectives

“…The hydrogenated borophene has been demonstrated to be a stable 2D Dirac material with an ultra-high Fermi velocity, which has 4 times higher Fermi velocity than graphene. 239−241 Sukeri et al 242 synthesized hydride BNSs (H-BNS) with high environmental stability, demonstrating excellent oxidation and reduction capabilities resulting in high specific capacity, excellent rate capability and capacity retention in Li-ion batteries. Li-doped borophene and Ca-Coated BNTs were reported to be good materials for hydrogen storage.…”

“…Zhou et al discovered that by functionalizing the surface of BNSs, they were able to obtain methyl-functionalized BNSs with excellent resistance to oxidation, allowing them to remain stable at 250 °C, and these functionalized BNSs exhibited specific cycling and rate performances in Li-ion batteries. The hydrogenated borophene has been demonstrated to be a stable 2D Dirac material with an ultra-high Fermi velocity, which has 4 times higher Fermi velocity than graphene. − Sukeri et al synthesized hydride BNSs (H-BNS) with high environmental stability, demonstrating excellent oxidation and reduction capabilities resulting in high specific capacity, excellent rate capability and capacity retention in Li-ion batteries. Li-doped borophene and Ca-Coated BNTs were reported to be good materials for hydrogen storage. − The addition of oxygen to the borophene chain was thought to improve its structural stability and electrical conductivity. , Joshi et al demonstrated remarkable stability of boron nanosheets with oxygen defects in aqueous solutions, as well as splendid pseudocapacitive charge storage and excellent cycling stability in aqueous supercapacitors.…”