Xuebin Wang Nanjing University, China
Xue-Bin Wang received his B.S. and M.S. degrees from Nanjing University, and got his Ph.D. degree from Waseda University in 2013. He worked as Junior Researcher (2010-2013) and Postdoc Researcher (2013-2014) in National Institute for Materials Science (NIMS). He has worked as ICYS Researcher in World Premier International Center for Materials Nanoarchitectonics (WPI-MANA) and NIMS since 2014. He has been pursuing the designed synthesis, novel properties and practical applications of low-dimensional functional materials. He published more than 30 peer-reviewed papers with citations over 1000 times. His current research topics, which are seeking students and research assistants, include the growth of 3D-designed nanosheets, e.g. strutted-graphene, carbon nitride and boron nitride nanosheets, and their applications to supercapacitors, batteries, polymeric composites etc.
Title：3D Strutted-Graphene: Synthesis and High-Performance Supercapacitors
SymposiumGraphene/GO Manufacture Technology
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Abstract
Three-dimensional (3D) graphene, featured by perfect intra-plane interconnections and substantial inter-plane separations of individual graphene blocks, are most desired for bringing unique 2D-crystal properties of graphene into the macro-world for large-scale applications. However, the current 3D graphene products still suffer from poor electrical conductivity, low surface area, and insufficient mechanical strength/elasticity; the interconnected self-supported reproducible 3D graphenes remain unavailable.Herein, we developed a novel chemical blowing approach to synthesize a new 3D graphene foam, i.e. strutted graphene (SG). SG consists of mono- /few-layered graphitic membranes tightly "glued", rigidly fixed and spatially scaffolded by micrometer-scale graphitic struts. Such topological configuration provides intimate structural interconnectivities, freeway for electron/phonon transports, huge accessible surface area, as well as robust mechanical properties. The directly grown high-yield and low-cost SG enables many specific applications at the kilogram-level scales and may effectively substitute for standard porous carbons as a functional additive. SG overcomes the drawbacks of all presently available 3D graphene products and opens up a wide horizon for diverse practical usages, e.g. high-power high-energy electrochemical capacitors [1]. Their supercapacitors achieve the maximum-power-density of 106 W/kg in aqueous system, and realize high energy density of 50 Wh/kg at the high maximum-power-density of 340 kW/kg in organic system [2].
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