title: Three-dimensional strutted graphene grown by substrate-free sugar blowing for high-power-density supercapacitors.
abstract: Three-dimensional graphene architectures in the macroworld can in principle maintain all the extraordinary nanoscale properties of individual graphene flakes. However, current 3D graphene products suffer from poor electrical conductivity, low surface area and insufficient mechanical strength/elasticity; the interconnected self-supported reproducible 3D graphenes remain unavailable. Here we report a sugar-blowing approach based on a polymeric predecessor to synthesize a 3D graphene bubble network. The bubble network consists of mono- or few-layered graphitic membranes that are tightly glued, rigidly fixed and spatially scaffolded by micrometre-scale graphitic struts. Such a topological configuration provides intimate structural interconnectivities, freeway for electron/phonon transports, huge accessible surface area, as well as robust mechanical properties. The graphene network thus overcomes the drawbacks of presently available 3D graphene products and opens up a wide horizon for diverse practical usages, for example, high-power high-energy electrochemical capacitors, as highlighted in this work.
authors: 1] World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba 3050044, Japan [2] Department of Nano-Science and Nano-Engineering, Faculty of Science and Engineering, Waseda University, Tokyo 1698555, Japan.
authors: Xuebin
authors: X
authors: Wang
authors: School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
authors: Yuanjian
authors: Y
authors: Zhang
authors: Department of Physics and Materials Science, City University of Hong Kong, Hong Kong 999077.
authors: Chunyi
authors: C
authors: Zhi
authors: World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba 3050044, Japan.
authors: Xi
authors: X
authors: Wang
authors: World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba 3050044, Japan.
authors: Daiming
authors: D
authors: Tang
authors: Environment and Energy Materials Division, NIMS, Tsukuba 3050047, Japan.
authors: Yibin
authors: Y
authors: Xu
authors: 1] World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba 3050044, Japan [2] Nanotube Group, NIMS, Tsukuba 3050044, Japan.
authors: Qunhong
authors: Q
authors: Weng
authors: 1] World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba 3050044, Japan [2] Department of Nano-Science and Nano-Engineering, Faculty of Science and Engineering, Waseda University, Tokyo 1698555, Japan.
authors: Xiangfen
authors: X
authors: Jiang
authors: World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba 3050044, Japan.
authors: Masanori
authors: M
authors: Mitome
authors: 1] World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba 3050044, Japan [2] Nanotube Group, NIMS, Tsukuba 3050044, Japan.
authors: Dmitri
authors: D
authors: Golberg
authors: 1] World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba 3050044, Japan [2] Department of Nano-Science and Nano-Engineering, Faculty of Science and Engineering, Waseda University, Tokyo 1698555, Japan.
authors: Yoshio
authors: Y
authors: Bando
mesh_terms: D004553:Electric Conductivity; D004566:Electrodes; D006108:Graphite / Q000138:chemical synthesis / Q000737:chemistry*; D008567:Membranes, Artificial; D014961:X-Ray Diffraction
chemical_list: D008567:Membranes, Artificial; D006108:Graphite