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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