摘要
High saturation magnetization（〉90 emu/g）multi-walled carbon nanotubes（MWCNTs）and Fe4N nanoparticles composite were successfully synthesized by gas nitriding at 550℃.Almost all Fe4N nanoparticles were evenly distributed inside the carbon nanotubes and formed a special composite microstructure.This composite microstructure shows excellent soft magnetic property,structural stability,and chemical stability at room temperature.The investigations of electromagnetic and microwave absorption performances indicate that microwave absorbing capacity of low frequency band of MWCNTs were greatly improved by addition of Fe4N nanoparticles.
High saturation magnetization（〉90 emu/g）multi-walled carbon nanotubes（MWCNTs）and Fe4N nanoparticles composite were successfully synthesized by gas nitriding at 550℃.Almost all Fe4N nanoparticles were evenly distributed inside the carbon nanotubes and formed a special composite microstructure.This composite microstructure shows excellent soft magnetic property,structural stability,and chemical stability at room temperature.The investigations of electromagnetic and microwave absorption performances indicate that microwave absorbing capacity of low frequency band of MWCNTs were greatly improved by addition of Fe4N nanoparticles.
基金
financial support of Fundamental Research Funds for the Central Universities (2682014CX002)
the National Natural Science Foundation of China (Grant Nos.51601156,and U1537201) from Southwest Jiaotong University and the Harbin Institute of Technology
