TY - JOUR
T1 - Three-dimensional strutted graphene grown by substrate-free sugar blowing for high-power-density supercapacitors
AU - Wang, Xuebin
AU - Zhang, Yuanjian
AU - Zhi, Chunyi
AU - Wang, Xi
AU - Tang, Daiming
AU - Xu, Yibin
AU - Weng, Qunhong
AU - Jiang, Xiangfen
AU - Mitome, Masanori
AU - Golberg, Dmitri
AU - Bando, Yoshio
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84890762674&origin=recordpage
U2 - 10.1038/ncomms3905
DO - 10.1038/ncomms3905
M3 - RGC 21 - Publication in refereed journal
C2 - 24336225
SN - 2041-1723
VL - 4
JO - Nature Communications
JF - Nature Communications
ER -