We report a bubbling chemical vapor deposition method for mass production of high-quality graphene using molten copper as the catalyst for continuous growth. Bubbles containing precursor gas (natural gas) are produced by inserting an aerator into molten copper. High-quality graphene are grown on bubble surfaces and carried to the copper surface. The production rate can be as high as 3kg/day using a crucible with a copper volume of 30 L. The high quality of graphene is demonstrated by composites with very high conductivity. The highly conductive composite shows excellent performance in an electromagnetic interference (EMI) shielding application with an EMI effectiveness of &gt;70 dB at X band. Moreover, except for precursor gases, the lack of other chemicals in the growth process makes it an environmentally friendly approach. Solid carbon can also be used as the precursor, making it a low-cost production. In addition, the naturally crumpled feature of the graphene should allow them to be used in multiple applications, because restacking can be prevented. <br/>

Graphene powder by bubbling chemical vapor deposition

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.