Ultrathin Carbon Coated Preferentially Orientated V10o24·12h2o Nanosheets with Large Interplanar Spacing Toward Superior Zinc Storage

Three-dimensional (3D) networks of ultrathin carbon coated preferentially oriented V 10 O 24 ·12H 2 O nanosheets (denoted as P-V 10 O 24 @C) with large interplanar spacing are synthesized through a facile hydrothermal reaction. Due to the large interplanar spacing of 1.42 nm and the ultrathin nature of the P-V 10 O 24 @C nanosheets (~1.6 nm thick), the as-prepared 3D P-V 10 O 24 @C networks display superior performance for zinc storage. By using the 3D P-V 10 O 24 @C as the cathode of zinc-ions batteries, the as-obtained 3D P-V 10 O 24 @C sample delivers superior rate performance and excellent specific capacity, specific capacities of ca. 448.9 mAh g -1 and 175.6 mAh g -1 are obtained at current densities of 0.5 (~1.4 C) and 20 A g -1 (~115 C) respectively. Besides, it provides a simple and scalable strategy to produce the 3D networks of the preferentially orientated vanadium oxides nanosheets or other layered metal oxides coated with carbon.