Zielinski Wojciech, Kamedulski Piotr, Smolarkiewicz-Wyczachowski Aleksander, Skorupska Malgorzata, Lukaszewicz Jerzy P, Ilnicka Anna
Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland.
Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, Wilenska 4, 87-100 Torun, Poland.
Materials (Basel). 2020 Jul 6;13(13):2997. doi: 10.3390/ma13132997.
The N-doped hybrid carbon materials containing amorphous carbon nanotubes (ACNTs) were obtained by free growth of a polymer at 200 °C. The improvement of electrical conductivity was achieved by a final carbonization at 600-800 °C under the flow of nitrogen. The microstructure of ACNT/N-doped hybrids was characterized using a transmission electron microscope and X-ray diffusion. Furthermore, their elemental composition was measured using energy-dispersive X-ray spectroscopy and an elemental analyzer. The experimental results indicated that the ACNTs had a diameter in the range of 40-60 nm and the N-doped carbon background contained nitrogen atoms in most bonded pyrrolic-N and quaternary-N groups. The results revealed that the microstructure of the as-grown nanotubes, prepared by the proposed method, is mainly amorphous. This technique introduces the advantages of low cost and process simplicity, which may redeem some drawbacks of the methods commonly used in ACNT synthesis.
通过在200℃下使聚合物自由生长，获得了含有非晶态碳纳米管（ACNTs）的氮掺杂混合碳材料。通过在氮气气流下于600 - 800℃进行最终碳化，实现了电导率的提高。使用透射电子显微镜和X射线衍射对ACNT/氮掺杂混合物的微观结构进行了表征。此外，使用能量色散X射线光谱仪和元素分析仪测量了它们的元素组成。实验结果表明，ACNTs的直径在40 - 60nm范围内，且氮掺杂碳背景在大多数键合的吡咯氮和季氮基团中含有氮原子。结果表明，通过所提出的方法制备的生长态纳米管的微观结构主要是非晶态的。该技术具有低成本和工艺简单的优点，这可能弥补了ACNT合成中常用方法的一些缺点。
