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高纯度单壁纳米碳管的合成是应用研究和实际应用的基础和关键 .提出了一种氢等离子电弧方法 ,在适当的生长促进剂的作用下 ,能大量制备出高纯度的单壁纳米碳管 .选用宏观数量的单壁纳米碳管 ,进行适当预处理 ,在室温及约 10 0atm下进行储氢实验 ,发现该材料的储氢容量可达 (4 2— 4 7)wt% ,经过 5次循环实验 ,其储氢容量先略有下降 ,随后便稳定不变 .这些初步实验结果表明 ,单壁纳米碳管是一种很有前途的储氢材料 .
The synthesis of high-purity single-walled carbon nanotubes is the basis and key of applied research and practical application.A hydrogen plasma arc method is proposed, which can prepare a large amount of high-purity single-walled carbon nano-carbon under the action of appropriate growth promoters A macroscopic number of single-walled carbon nanotubes were used for pretreatment. Hydrogen storage was carried out at room temperature and at about 10 atm, and the hydrogen storage capacity of the material was found to be (4 2-47) wt% In the second cycle experiment, the hydrogen storage capacity first decreased slightly, and then remained stable.These preliminary experimental results showed that SWNTs were a promising hydrogen storage material.