摘要
以二茂铁和苯为原料采用CVD技术制备了定向、长为150～160μm铁/碳纳米管雷达波吸收剂,考察了反应温度、保温时间等对其生长状况的影响。采用扫描电镜(SEM)、高分辨透射电子显微镜(HRTEM)、X-射线光电子能谱(XPS)对所得产物进行了形貌、组成、结构表征。结果表明产物有较高的铁填充率,铁元素是以α-Fe晶型包覆在多壁碳纳米管中;吸收剂密度为2.4～2.6 g/cm^3,电磁参数在2～18 GHz范围内呈现良好的频散效应,低频段尤为显著。
Radar wave absorbents iron/carbon nanotubes（Fe/CNTs） were synthesized from benzene and ferrocene by CVD reactions. The materials were of aligned morphology with the tube length of 150～160 μm. The effects of reaction temperature and annealing time on the growth morphology were studied, and the surface morphology and microstructure of Fe/CNTs were analyzed by SEM, HRTEM and X-ray electron energy spectrum, Results showed α-Fe was encapsulated in multi-walled CNTs. The density of the absorbent was 2.4～2.6 g/cm^3. The materials showed complex permittivity of frequency dispersion in lower frequency between 2～18 GHz.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2008年第A01期145-148,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金面上项目资助(50472044)
