title: Highly ordered mesoporous few-layer graphene frameworks enabled by fe3 o4 nanocrystal superlattices.
abstract: While great progress has been achieved in the synthesis of ordered mesoporous carbons in the past decade, it still remains a challenge to prepare highly graphitic frameworks with ordered mesoporosity and high surface area. Reported herein is a simple synthetic methodology, based on the conversion of self-assembled superlattices of Fe3 O4 nanocrystals, to fabricate highly ordered mesoporous graphene frameworks (MGFs) with ultrathin pore walls consisting of three to six stacking graphene layers. The MGFs possess face-centered-cubic symmetry with interconnected mesoporosity, tunable pore width, and high surface area. Because of their unique architectures and superior structural durability, the MGFs exhibit excellent cycling stability and rate performance when used as anode materials for lithium-ion batteries, thus retaining a specific capacity of 520 mAh g(-1) at a current density of 300 mA g(-1) after 400 cycles.
authors.affiliation: Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and Department of Chemistry, Fudan University, Shanghai 200433 (China).
authors.forename: Yucong
authors.initials: Y
authors.lastname: Jiao
authors.forename: Dandan
authors.initials: D
authors.lastname: Han
authors.forename: Limin
authors.initials: L
authors.lastname: Liu
authors.forename: Li
authors.initials: L
authors.lastname: Ji
authors.forename: Guannan
authors.initials: G
authors.lastname: Guo
authors.forename: Jianhua
authors.initials: J
authors.lastname: Hu
authors.forename: Dong
authors.initials: D
authors.lastname: Yang
authors.forename: Angang
authors.initials: A
authors.lastname: Dong
keywords: graphene; lithium; mesoporous materials; nanostructures; self-assembly