Exfoliated MoO3 nanosheets for high-capacity lithium storage

•A versatile strategy is successfully developed to produce MoO3 nanosheets exfoliated by mixture solvents of IPA and water•The MoO3 nanosheets demonstrate high aspect ratio, thin thickness (2–6 nm) and single-crystalline structure properties•The MoO3 nanosheets exhibit very high lithium storage capacity of 1110 mAh g− 1, good rate capability and cycling performance

2D MoO3 nanosheets have been fabricated by liquid exfoliation method using low-boiling point mixture solvents of isopropanol (IPA) and water. The resulting MoO3 nanosheets demonstrate high aspect ratio, thin thickness (2–6 nm) and single-crystalline structure properties. With these features the MoO3 nanosheets are capable of exposing much electrode surfaces accessible by electrolyte, and providing abundant reactive sites for Li-ion storage. Such structured nanosheets can minimize the extent of volume change during Li intercalation/deintercalation. As an anode material of Li-ion battery, the 2D MoO3 nanosheets exhibit high reversible capacities of 1110 mAh g− 1 (3.0 to 0.01 V) and 841 mAh g− 1 (2.0 to 0.01 V), good rate capability and cycling performance.

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