• 文献标题:   Highly Ordered Mesoporous Few-Layer Graphene Frameworks Enabled by Fe3O4 Nanocrystal Superlattices
  • 文献类型:   Article
  • 作  者:   JIAO YC, HAN DD, LIU LM, JI L, GUO GN, HU JH, YANG D, DONG AG
  • 作者关键词:   graphene, lithium, mesoporous material, nanostructure, selfassembly
  • 出版物名称:   ANGEWANDTE CHEMIEINTERNATIONAL EDITION
  • ISSN:   1433-7851 EI 1521-3773
  • 通讯作者地址:   Fudan Univ
  • 被引频次:   50
  • DOI:   10.1002/anie.201501398
  • 出版年:   2015

▎ 摘  要

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 Fe3O4 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.