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Construction of a Unique Two-Dimensional Hierarchical Carbon Architecture for Superior Lithium-Ion Storage

机译:优质锂离子存储的独特二维分层碳体系结构的构建

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摘要

Two-dimensional nanocarbons are intriguing functional materials for energy storage. However, the serious aggregation problems hinder their wider applications. To address this issue, we developed a unique two-dimensional hierarchical carbon architecture (2D-HCA) with ultrasmall graphene-like carbon nanosheets uniformly grown on hexagonal carbon nanoplates. The obtained 2D-HCA shows an interconnected porous structure and abundant heteroelement doping. When employed as anode for lithium ion batteries, it exhibits a high discharge capacity of 748 m Ah g(-1) even after 400 cycles at 2 A g(-1).
机译:二维纳米碳是用于能量存储的有趣功能材料。但是,严重的聚集问题阻碍了它们的广泛应用。为解决此问题,我们开发了独特的二维分层碳结构(2D-HCA),其中超小类石墨烯状碳纳米片均匀地生长在六边形碳纳米板上。所获得的2D-HCA显示出互连的多孔结构和丰富的杂元素掺杂。当用作锂离子电池的阳极时,即使在2 A g(-1)下循环400次后,它仍具有748 m Ah g(-1)的高放电容量。

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