| 埃洛石纳米管模板法一步法制备一维碳纳米管/碳纳米棒混合纳米碳材料 |
| Halloysite Nanotubes-Templated One-Step Preparation for Carbon Nanotubes/Carbon Nanorods Mixed Carbon Nanomaterials |
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| 摘要: 利用埃洛石纳米管（HNTs）特有的中空纳米结构，以及丰富的界面化学性质，以聚乙烯醇（PVA）为碳源，采用浸渍填充纳米孔方法实现了一步制备一维碳纳米管（CNTs）/碳纳米棒（CNRs）混合纳米碳材料。考察模板剂（HNTs）和碳源（PVA）之间的比例关系对混合纳米碳材料的结构影响，利用XRD、FTIR、Raman、N2吸附-脱附测试、TEM、SEM以及电阻率和分散性等表征手段分析混合纳米碳材料的结构变化。结果发现，PVA填充含量的增加将导致产物中CNRs的质量分数增加；当PVA和HNTs质量之比为1∶1时，所制备的CNTs/CNRs的孔体积达到最大值2.142 cm3·g-1，比表面积达到583 m2·g-1，并且表现出较好的电导率和分散性，表明低的PVA填充比例制备的混合碳材料中CNTs含量较高。 |
| 关键词: 多孔碳 纳米技术 埃洛石 硬模板 |
| 基金项目: 江苏省产学研合作-前瞻性联合研究项目（No.BY2016069-02）和扬州市重点研发计划-社会发展（No.YZ2016072）资助项目。 |
| Abstract: This work developed a novel approach to prepare the CNTs/CNRs mixed nanomaterials by nanocasting method with tuning HNTs/PVA proportion, which employed HNTs as template and PVA as carbon source. We explored the effect of HNTs/PVA proportion on the structure of the mixed carbon nanomaterials. A series of characterizations, such as XRD, FTIR, Raman, N2 adsorption-desorption, TEM, SEM, resistivity and dispersibility, were used to determine the structure of the CNTs/CNRs mixed nanomaterials. The results found that PVA nanocasting content in the hollow nanostructure of HNTs affected the increase of CNRs in the CNTs/CNRs mixed nanomaterials. Upon the mass proportion of PVA/HNTs up to 1:1, the pore volume of the CNTs/CNRs mixed nanomaterials approached to the maximum of 2.142 cm3·g-1 and the specific surface area was up to 583 m2·g-1, and definitely showed a better conductivity and dispersibility, demonstrating that a lower PVA nanocasting content in HNTs could fulfilled a higher CNTs content in the CNTs/CNRs mixed nanomaterials. |
| Keywords: porous carbon nanotechnology HNTs hard template |
| 投稿时间：2018-04-24 修订日期：2018-07-31 |
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| 程志林,曹宝冲,刘赞.埃洛石纳米管模板法一步法制备一维碳纳米管/碳纳米棒混合纳米碳材料[J].无机化学学报,2018,34(10):1808-1816. |
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