Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China.
Chem Commun (Camb). 2012 Feb 28;48(18):2409-11. doi: 10.1039/c2cc16491d. Epub 2012 Jan 25.
Chirality-controlled synthesis of single-walled carbon nanotubes (SWCNTs) is a prerequisite for their practical applications in electronic and optoelectronic devices. We report here a novel bimetallic CoPt catalyst for the selective growth of high quality SWCNTs with a narrow chirality distribution at relatively high temperatures of 800 °C and 850 °C using atmospheric pressure alcohol chemical vapor deposition. The addition of Pt into a Co catalyst forms a CoPt alloy and significantly reduces the diameters of the as-grown SWCNTs and narrows their chirality distributions.
手性控制合成单壁碳纳米管（SWCNTs）是其在电子和光电设备中实际应用的前提。我们在此报告了一种新型的双金属 CoPt 催化剂，用于在相对较高的 800°C 和 850°C 温度下使用常压醇化学气相沉积选择性生长高质量、手性分布较窄的 SWCNTs。Pt 加入 Co 催化剂中形成 CoPt 合金，显著减小了所生长的 SWCNTs 的直径并使其手性分布变窄。
