▎ 摘　　要

The low bending stiffness and inferior self-lubricating ability of graphene bring about flexible nanosheet and poor mobility, greatly restricting its well-organized self-assembly in direct solid-phase molding. Herein, abundant fluorine atoms are introduced onto graphene nanosheet to obtain fluorinated graphene (FG). A direct dry-compression molding achieves to rapidly fabricate highly compact FG monolith under room temperature. Tracing origins, the enhanced bending stiffness guarantees relatively flat FG nanosheet and excellent self-lubricating ability actuates flat FG nanosheets to automatically slip, thereby accomplishing well-organized and compact layer-by-layer stacking with interlock structure. Whereafter, highly compact graphene monolith is finally obtained by high-temperature annealing, because interlock structure in FG monolith restricts graphene ' s deformations during defluorination. Obtained graphene monolith owns a high conductivity of 5.5 x 10(4)S m(-1)and compression strength of 77 MPa, while graphene without above process only forms fluffy foam with a low conductivity of 6.8 S m(-1). Interestingly, transitional FG monolith presents a higher compression strength of 102 MPa, ultralow dielectric constant of 1.72 and prolongable chemical reactivity for preparing "Janus" monolith. Designing reversible fluorination and defluorination strategy offers an unexplored avenue to effectively manufacture high-quality graphene-based monoliths.