▎ 摘　　要

In this work, we developed a strategy to fabricate self-assembled aggregates encapsulating graphene from direct exfoliation of graphite. Naphthalene-anhydride-appended glutamic acid (NG) and pyrene-appended glutamic acid (PG) were utilized to exfoliate graphite to generate few-layer graphene in basic aqueous media. Acidification-triggered self-assembly of PG could encapsulate graphene sheets to give graphene@microsheet hybrids. Melamine (Mm) was introduced to induce the morphological transfor-mation of PG from microsheets to twisted fibers with columnar packing. In the presence of graphene, this transformation allowed the fabrication of twisted-fiber-encapsulated graphene (graphene@twist fiber). Tricomponent hybrids were also built up via in situ preparation of gold nanoparticles (AuNPs) on the negatively charged surface of few-layer graphene during the self-assembly process. This study presents an approach to construct directly exfoliated graphenebased hybrids through self-assembly.