Exfoliated MoS₂ Nanosheet/Cellulose Nanocrystal Flexible Composite Films as Electrodes for Zinc Batteries

The study presents a more efficient way of exfoliating MoS2 in water and the exfoliated was used an electrode. electrodes were prepared from (active material)–nanocrystalline cellulose (binder) with carbon nanotubes (electron-conducting support) demonstrated zinc battery half-cell that showed Coulombic efficiency 90%. Successful exfoliation done by sonication bulk sulfated nanocrystals (CNC) for 4 h. confirmed Raman transmission electron microscopy; interestingly, signals show blue shift both A1g E2g1 bands, which may be indication induced lattice strain effect CNC on MoS2. resulting stable suspension no tendency precipitation after 2 months standing. zeta potential, ζ, sodium (CNC–OSO3Na)–MoS2 −45 mV, whereas (CNC–OSO3H)–MoS2 had potential −35 mV. form CNCs displayed micelle characteristics, similar to dodecyl sulfate (SDS), critical aggregation concentration (CAC) 1.1 wt %. At CAC, efficiently MoS2, is at much lower than has been reported synthetic surfactants like SDS cetyl trimethyl ammonium bromide.