▎ 摘　　要

A novel and general method is proposed to construct three-dimensional graphene/metal oxide nanoparticle hybrids. For the first time, it is demonstrated that this graphene-based composite with open pore structures can be used as a high-performance capacitive deionization (CDI) electrode material, which outperforms currently reported materials. This work will offer a promising way to develop highly effective CDI electrode materials.