Authors
Suming Li, Lijuan Yang, Xiaoli Zhao, Fan Dong, Rodney S Ruoff, Ming Huang
Published in
Nature protocols. Jul 14, 2026. Epub Jul 14, 2026.
Abstract
Graphene has attracted broad interest due to its electrical, thermal, mechanical and chemical properties, showing great promise for applications such as lightweight aerospace structures, high-performance microelectronics and efficient thermal management systems. Chemical vapor deposition on metal substrates is currently the most viable route for scalable production of large-area and high-quality graphene films. However, the synthesis typically relies on costly single-crystal metal substrates, while further refinement is needed in both efficient growth and transfer techniques to achieve reproducible high-performance materials. To address these challenges, home-made single-crystal Cu/Ni alloy foils with tunable Ni concentrations can enhance catalytic activity, thereby providing an ideal platform for controllable graphene epitaxy. Here we detail a comprehensive protocol covering the fabrication of large-area single-crystal Cu foils, preparation of single-crystal Cu/Ni alloy foils, chemical vapor deposition growth of monolayer graphene and electrochemical transfer of graphene. The entire procedure requires ~32-38 h. This protocol is intended for researchers in materials science, surface chemistry, condensed matter physics and nanotechnology, and engineers seeking to obtain high-quality single-crystal metal foils and single-crystal monolayer graphene films. It provides a reproducible, scalable approach for their preparation and characterization, targeting fundamental research and potential applications in electronics and photonics.
PMID:
42448908
Bibliographic data and abstract were imported from PubMed on 15 Jul 2026.
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