Synthesis of a Self-Assembled Hybrid of Ultrananocrystalline Diamond and Carbon Nanotubes


  • The authors would like to thank J. Denlinger for invaluable assistance at the Advanced Light Source, which is supported by Office of Basic Energy Sciences, U.S. Department of Energy, under Contract No. DE-AC03-76SF00098. Electron microscopy imaging was carried out at the Electron Microscope Center at Argonne National Laboratory, which is supported by the Office of Science. The authors acknowledge the continuous support of the U.S. DOE Office of Science-Materials Science & Engineering under Contract No.W-31-109-ENG-38, and also the Center of Excellence in Synthesis and Processing program of the U.S. DOE Office of Science, Basic Energy Sciences.


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A self-assembled hybrid of ultrananocrystalline diamond (UNCD) and carbon nanotubes (CNTs) is successfully prepared by their simultaneous growth in an argon-rich Ar/CH4 plasma (see Figure and cover). Control of the relative fractions and configurations of UNCD and CNTs in the hybrid material is demonstrated. This new synthesis pathway enables the development of new nanocarbons with unique mechanical, tribological, and electrochemical properties.