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A novel method, combining polymerization and pyrolysis of single precursor on graphite sheet, has been developed to synthesize monodispersed boron carbonitride hollow spheres in large-scale. The products have hollow architectures (2–3μm in diameter) with nano-pores on the spherical walls and a composition of B0.23N0.19C0.58. The products exhibit the minimum reflection loss of −42.5dB at 12.6GHz (the...
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