Morphology-controllable templated synthesis of three-dimensionally structured graphenic materials

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• 作者：Je-Ruei Wen ; Chung-Yuan Mou ; ^{cymou@ntu.edu.tw" class="auth_mail" title="E-mail the corresponding author}
• 刊名：Carbon
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：111
• 期：Complete
• 页码：476-485
• 全文大小：2661 K

文摘

The physical and chemical properties of graphene are highly related to its nanostructure. Yet, existing preparation methods cannot easily obtain free-standing 3-D graphenic materials with controllable morphology. Here we report a growth strategy for graphenic materials with various micron- and nano-architectures by templating γ-alumina, which was transformed from morphology-controllable boehmite. The resulting graphenic materials show perfectly replicated fine structures of the corresponding templates, and they give high specific surface areas in the range of 1149–1867 m² g⁻¹ which are desirable for energy applications. Hydrogen adsorption properties of the templated graphenic materials were evaluated at 77 K, and the samples presented 1.34–1.66 wt% storage capacities near 1.1 bar.