[das] 碳纳米管
纳米碳管(Carbon nanotube)是1991年才被发现的
![](https://www.godic.net/tmp/wordimg/TpXL4N9ryMhene8X24z@@hUhhyus=.png)
种碳结构。理想纳米碳管是
![](https://www.godic.net/tmp/wordimg/hx2vCaLB6yPCm7NJg@VM114ceHQ=.png)
碳原子形成的石墨烯片层卷成的无缝、中空的管体。石墨烯的片层
![](https://www.godic.net/tmp/wordimg/TpXL4N9ryMhene8X24z@@hUhhyus=.png)
般可
![](https://www.godic.net/tmp/wordimg/Z614nxS0w2QYwDNGkwntO6ZXIVk=.png)
![](https://www.godic.net/tmp/wordimg/cobMEMxRNl@@3kgys0z5AYEzMsow=.png)
![](https://www.godic.net/tmp/wordimg/TpXL4N9ryMhene8X24z@@hUhhyus=.png)
层到上百层,含有
![](https://www.godic.net/tmp/wordimg/TpXL4N9ryMhene8X24z@@hUhhyus=.png)
层石墨烯片层的称为单壁纳米碳管(Single walled carbon nanotube, SWNT),多于
![](https://www.godic.net/tmp/wordimg/TpXL4N9ryMhene8X24z@@hUhhyus=.png)
层的则称为多壁纳米碳管(Multi-walled carbon nanotube, MWNT)。SWNT的直径
![](https://www.godic.net/tmp/wordimg/TpXL4N9ryMhene8X24z@@hUhhyus=.png)
般为1-6nm,最小直径大约为0.5nm,与C36分子的直径相当,但SWNT的
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