Synthesis of high quality nitrogen-doped single-wall carbon nanotubes  

高质量氮掺杂单壁碳纳米管的可控制备（英文）

作　　者：侯鹏翔 宋曼 李金成 刘畅 李世胜 成会明 

机构地区：[1]Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences

出　　处：《Science China Materials》2015年第8期603-610,593,共9页中国科学（材料科学（英文版）

基　　金：financially supported by the National Basic Research Program of China (2011CB932601);National Natural Science Foundation of China (51221264, 51272257, and 51372254);Chinese Academy of Sciences (KGZD-EW-T06)

摘　　要：Nitrogen-doped single-wall carbon nanotubes(SWCNTs) with diameters in the range of 1.1–1.6 nm were synthesized on a large scale by floating catalyst chemical vapor deposition. Ferrocene, methane and melamine were respectively used as the catalyst precursor, carbon source and nitrogen source. The content of nitrogen introduced into the SWCNT lattice was characterized to be ~0.4 at.%. This resulted in a decreased mean diameter, narrower tube diameter distribution, and increased surface area of the SWCNTs. The temperatures at which the rate of weight loss reaches the maximum value for N-SWCNTs are ~785°C, similar to that of pure SWCNTs, indicative of their high-quality and good crystallinity. These N-SWCNTs exhibited a metallic behavior and desirable electrochemical oxygen reduction reaction activity.本文以二茂铁为催化剂、三聚氰胺为氮源、甲烷为碳源,采用浮动催化剂化学气相沉积法制备了氮掺杂单壁碳纳米管.通过控制三聚氰胺的挥发量,实现了氮原子在单壁碳纳米管石墨网格中的微量掺杂,获得了高质量的氮掺杂单壁碳纳米管,其抗氧化温度高达795°C.这种微量氮掺杂使得单壁碳纳米管的直径变小、直径分布范围变窄,并表现出金属性行为及提高的氧还原性能.

关 键 词：SWCNTS 单壁碳纳米管 氮掺杂 

分 类 号：TQ127.11[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]