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

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• 作者：Zhijie Wang ; Xiaoliang Yu ; Wenhui He ; Yusuf Valentino Kaneti ; Da Han ; Qi Sun ; Yan-Bing He ; Bin Xiang
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：December 14, 2016
• 年：2016
• 卷：8
• 期：49
• 页码：33399-33404
• 全文大小：482K
• ISSN：1944-8252

文摘

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.