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对以钴、镍、钴 镍、钴 二茂铁、镍 二茂铁和二茂铁为催化剂高温热解法制备的硼碳氮 (BCN)纳米管的结构、产率等的影响进行了分析 .实验中发现催化剂在BCN纳米管的生长过程中有重要作用 .高分辨率透射电子显微镜图像显示在 86 0℃时 ,以镍 二茂铁、钴 二茂铁为催化剂生成的BCN纳米管具有“竹节状”结构 ,且管壁较薄 ,镍、钴或镍 钴作催化剂生成的BCN纳米管不具有明显的“竹节状”结构 ,管壁较厚 ,且粗细不均匀 ,而以二茂铁作催化剂没有BCN纳米管生成 .在所有生成的BCN纳米管中含有催化剂颗粒 .通过对生成的BCN纳米管的结构和产率进行比较 ,得出催化剂的催化活性满足钴 二茂铁≈镍 二茂铁 >钴≈镍 >钴 镍 二茂铁 .对不同催化条件下生成物的拉曼光谱进行了分析
The effects of the structure, yield and so on of boron carbonitride (BCN) nanotubes prepared by high temperature pyrolysis of cobalt, nickel, cobalt nickel, cobalt ferrocene, nickel ferrocene and ferrocene catalyst were analyzed. It was found that the catalyst plays an important role in the growth of BCN nanotubes.High-resolution transmission electron microscopy images show that BCN nanotubes with NiC2O4 and CoFe2O4 as catalyst have the highest BET Section-like “structure with a thinner tube wall. BCN nanotubes produced by nickel, cobalt or nickel-cobalt catalysts do not have obvious” bamboo-like "structure. The wall of the tube is thick and the thickness is not uniform. No BCN nanotubes were formed as catalyst.The catalyst particles were contained in all the BCN nanotubes produced.By comparing the structure and yield of BCN nanotubes produced, the catalytic activity of the catalyst was found to meet the requirements of cobalt ferrocene ≈ nickel dimer Iron> Cobalt ≈ Nickel> Cobalt nickel ferrocene Raman spectra of the products under different catalytic conditions were analyzed