Preparation of Three-Dimensional Graphene Foams Using Powder Metallurgy Templates

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• 作者：Junwei Sha ; Caitian Gao ; Seoung-Ki Lee ; Yilun Li ; Naiqin Zhao ; James M. Tour
• 刊名：ACS Nano
• 出版年：2016
• 出版时间：January 26, 2016
• 年：2016
• 卷：10
• 期：1
• 页码：1411-1416
• 全文大小：428K
• ISSN：1936-086X

文摘

A simple and scalable method which combines traditional powder metallurgy and chemical vapor deposition is developed for the synthesis of mesoporous free-standing 3D graphene foams. The powder metallurgy templates for 3D graphene foams (PMT-GFs) consist of particle-like carbon shells which are connected by multilayered graphene that shows high specific surface area (1080 m² g^–1), good crystallization, good electrical conductivity (13.8 S cm^–1), and a mechanically robust structure. The PMT-GFs did not break under direct flushing with DI water, and they were able to recover after being compressed. These properties indicate promising applications of PMT-GFs for fields requiring 3D carbon frameworks such as in energy-based electrodes and mechanical dampening.