Enhanced Lithium Storage Properties of Hierarchical MoS2-rGO Nanosheets

Yuan Yuan
2017 International Journal of Electrochemical Science  
Layered materials (e.g. MoS 2 and graphene oxides) with ordered two-dimensional channels for mass transfer are promising building blocks for energy storage devices. Herein, hierarchical MoS 2 -reduced graphene oxide nanosheets (notated as MoS 2 -rGO nanosheets) are produced by growing hierarchical MoS 2 nanosheets on GO sheets through an L-Cysteine-assisted hydrothermal process together with a subsequent thermal annealing treatment. When evaluated as an anode material for lithium-ion batteries,
more » ... hium-ion batteries, the hierarchical MoS 2 -rGO nanosheets manifest high specific capacity (~1000 mA h g −1 at 100 mA g −1 ), enhanced cycling stability and good rate capability. The present GO provides a robust and highly conductive matrix for in-situ growth of ultrathin MoS 2 nanosheets. The hence enhanced electrical conductivity, shorter mass transfer paths and structural integrity/robustness facilitates the enhanced lithium storage capability of the hybrids. The present work highlights the merit of hybrid two-dimensional materials for energy storage.
doi:10.20964/2017.06.72 fatcat:r7ncmp2nq5fjlbgnmcv45vdlja