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Functionalization of carbon nanotubes by water plasma

机译：水等离子体对碳纳米管的功能化

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Multiwall carbon nanotubes grown by plasma enhanced chemical vapour deposition were functionalized by H _2O plasma treatment. Through a controlled functionalization process of the carbon nanotubes (CNTs) we were able to modify and tune their chemical reactivity, expanding the range of potential applications in the field of energy and environment. In particular, different oxygen groups were attached to the surfaces of the nanotubes (e.g. carboxyl, hydroxyl and carbonyl), which changed their physicochemical properties. In order to optimize the main operational parameters of the H _2O plasma treatment, pressure and power, a Box-Wilson experimental design was adopted. Analysis of the morphology, electrochemical properties and functional groups attached to the surfaces of the CNTs allowed us to determine which treatment conditions were suitable for different applications. After water plasma treatment the specific capacitance of the nanotubes increased from 23up to 68Fg ~1 at a scan rate of 10mVs ~1.
机译：通过H _2O等离子体处理功能化了通过等离子体增强化学气相沉积法生长的多壁碳纳米管。通过碳纳米管（CNT）的受控功能化过程，我们能够修改和调整其化学反应性，从而扩大了在能源和环境领域的潜在应用范围。特别地，不同的氧基团附接到纳米管的表面（例如，羧基，羟基和羰基），这改变了它们的物理化学性质。为了优化H _2O等离子体处理的主要操作参数，压力和功率，采用了Box-Wilson实验设计。对附着在CNT表面的形态，电化学性质和官能团的分析使我们能够确定适合不同应用的处理条件。水等离子处理后，纳米管的比电容从23up增加到68Fg〜1，扫描速率为10mVs〜1。

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