碳纳米管
化学
蚀刻(微加工)
纳米技术
金属
氮气
碳纤维
催化作用
化学工程
等离子体刻蚀
氧气
兴奋剂
等离子体
无机化学
材料科学
有机化学
复合材料
光电子学
复合数
工程类
物理
量子力学
图层(电子)
作者
Dingshan Yu,Qiang Zhang,Liming Dai
摘要
We have for the first time developed a simple plasma-etching technology to effectively generate metal-free particle catalysts for efficient metal-free growth of undoped and/or nitrogen-doped single-walled carbon nanotubes (CNTs). Compared with undoped CNTs, the newly produced metal-free nitrogen-containing CNTs were demonstrated to show relatively good electrocatalytic activity and long-term stability toward oxygen reduction reaction (ORR) in an acidic medium. Owing to the highly generic nature of the plasma etching technique, the methodology developed in this study can be applied to many other substrates for efficient growth of metal-free CNTs for various applications, ranging from energy related to electronic and to biomedical systems.
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