Large scale and oxygen vacancy VO2 porous thin sheets to enable high-performance zinc ion storage

Abstract

Herein, we report the first result of large scale and oxygen vacancy VO₂ porous thin sheets assembled by a 3D interconnected nanoflake array framework, which is recorded as VO_d. The as-prepared VO_d was characterized by various methods and Zn²⁺ intercalation/deintercalation and structural decomposition mechanisms were proposed based on ex situ X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS).