화학공학소재연구정보센터
Materials Research Bulletin, Vol.72, 211-214, 2015
Large-scale synthesis of monodispersed Si-B-N-O doped carbon hollow cages with microwave absorption property
A novel method, combining polymerization and pyrolysis of single precursor on a silicon wafer, has been developed to synthesize monodispersed and Si-B-N-O doped carbon hollow cages in large-scale. The products have hollow architectures (2-3 mu m in diameter) with nano-pores on the spherical walls and a composition of Si0.03B0.1N0.03O0.04C0.8. The products exhibit the minimum reflection loss of -40.9 dB at 12.0 GHz (the effective reflection values are obtained in a very wide range of 3.8-17.5 GHz) suggesting a new and high quality microwave absorbent. (C) 2015 Elsevier Ltd. All rights reserved.