Supramolecular-Based One-Pot Separation of Highly Pure Adsorbent-Free Semiconducting Single-Walled Carbon Nanotubes and Machine Learning-Based Nanotube Solubilization,Accounts of Materials Research

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Supramolecular-Based One-Pot Separation of Highly Pure Adsorbent-Free Semiconducting Single-Walled Carbon Nanotubes and Machine Learning-Based Nanotube Solubilization
Accounts of Materials Research ( IF 14.0 ) Pub Date : 2024-07-21 , DOI: 10.1021/accountsmr.4c00113
Naotoshi Nakashima ₁ , Yoshiyuki Nonoguchi ₂ , Aleksandar Staykov ₁

Affiliation

Carbon nanotubes are classified into single-walled carbon nanotubes (SWNTs), double-walled carbon nanotubes and multiwalled carbon nanotubes. Among these, SWNTs have remarkable electronic, mechanical, optical, chemical and thermal properties, which are derived from their one-dimensional extended π-conjugated structures, and thus, they demonstrate a high potential toward the development of the next-generation nanoelectronics, (nano)bio, and energy and environmental materials and devices. As-produced SWNTs are a mixture of semiconducting (sem-) and metallic (met-)-SWNTs; thus, chirality sorting is highly important. So far various methods have been presented for such a separation including (i) use of chemical adsorbents such as polyfluorenes (PFOs) and their analogues and (ii) physical methods including surfactant-aided density gradient ultracentrifugation (DGU), gel chromatography techniques, and the surfactant-aided aqueous two-phase extraction method. However, such methods are not simple, and the removal of the wrapped adsorbents on the SWNTs is very difficult. Thus, the development of a method to remove the adsorbent from the sorted SWNTs is highly important to obtain adsorbent-free pure sem-SWNTs.

中文翻译：

基于超分子的高纯无吸附剂半导体单壁碳纳米管的一锅分离和基于机器学习的纳米管溶解

碳纳米管分为单壁碳纳米管(SWNT)、双壁碳纳米管和多壁碳纳米管。其中，单壁碳纳米管具有显着的电子、机械、光学、化学和热性能，这些性能源于其一维扩展的π共轭结构，因此，它们在下一代纳米电子学的发展方面表现出巨大的潜力，（纳米）生物、能源与环境材料与器件。生产出来的单壁碳纳米管是半导体 (sem-) 和金属 (met-)-SWNT 的混合物；因此，手性排序非常重要。迄今为止，已经提出了用于此类分离的各种方法，包括（i）使用化学吸附剂，例如聚芴（PFO）及其类似物，以及（ii）物理方法，包括表面活性剂辅助密度梯度超速离心（DGU）、凝胶色谱技术和表面活性剂辅助水两相萃取法。然而，这种方法并不简单，去除单壁碳纳米管上包裹的吸附剂非常困难。因此，开发一种从分选的单壁碳纳米管中去除吸附剂的方法对于获得无吸附剂的纯 sem-SWNT 非常重要。

更新日期：2024-07-21

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