Highly Efficient Synthesis of Nitrogen-atom Endohedral Fullerene by Controlling Plasma Ion Behaviors
Highly Efficient Synthesis of Nitrogen-atom Endohedral Fullerene by Controlling Plasma Ion Behaviors
复制标题
通过控制等离子体离子行为高效合成氮原子内嵌富勒烯
DOI：
10.1143/apex.5.026202
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发表时间：
2012
影响因子：
2.3
通讯作者：
Soon Cheon Cho
中科院分区：
文献类型：
--
作者：
武田真行;大滝智広;小安喜一郎;美齊津文典;Soon Cheon Cho
经过深入研究，找到了合成氮原子内嵌富勒烯（N@ C 60）的最佳条件，该氮原子内嵌富勒烯（N@ C 60）在C 60 的碳笼内含有原子氮。使用我们的射频等离子体装置，在25 Pa的压力和-90 V的加速基板偏置电压下，实现了等离子体中氮分子离子（N 2+）密度最大化的条件。结果，N@ C的目标分子60的纯度较高（N@ C 60 与C 60 的摩尔浓度比）为0.25%，比其他文献报道的纯度高一个数量级。
The thorough investigation has been made to find an optimum condition for the synthesis of the nitrogen-atom endohedral fullerene (N@ C 60), which contains the atomic nitrogen inside the carbon cage of C 60. Using our radio-frequency-plasma apparatus, the condition is realized to maximize the density of nitrogen-molecule ions (N 2+) in the plasma under the pressure of 25 Pa and the acceleration substrate bias voltage of-90 V. As a result, the target molecule of N@ C 60 is produced in relatively high purity (mol concentration ratio of N@ C 60 to C 60) of 0.25%, which is an order of magnitude higher than that reported in the other literatures.