Atomic-Scale Evidence of Catalyst Evolution for the Structure-Controlled Growth of Single-Walled Carbon Nanotubes,Accounts of Chemical Research

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Atomic-Scale Evidence of Catalyst Evolution for the Structure-Controlled Growth of Single-Walled Carbon Nanotubes
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2022-11-17 , DOI: 10.1021/acs.accounts.2c00592
Xue Zhao ₁ , Sida Sun ₁ , Feng Yang ₂ , Yan Li _{1,

3}

Affiliation

Knowing how nanomaterials nucleate and dynamically evolve at the nanoscale is crucial to understanding and in turn controlling the structure and properties of a wide variety of materials, among which single-walled carbon nanotubes (SWCNTs) with chirality-dependent properties is a typical example. Catalyst takes a central role in guiding the SWCNT growth. An in-depth understanding of the growth mechanism of SWCNTs requires knowledge of the catalyst dynamic behavior during the chemical vapor deposition process, where real-time atomic-scale observations are needed. The high spatial, temporal, and energy resolution makes the state-of-the-art aberration-corrected environmental transmission electron microscope (ETEM) a superior tool for tracking the catalyst evolution and the SWCNT growth.

中文翻译：

单壁碳纳米管结构控制生长催化剂进化的原子级证据

了解纳米材料如何在纳米尺度上成核和动态演化对于理解和控制各种材料的结构和性能至关重要，其中具有手性依赖特性的单壁碳纳米管 (SWCNT) 是一个典型的例子。催化剂在引导单壁碳纳米管生长方面起着核心作用。深入了解 SWCNT 的生长机制需要了解化学气相沉积过程中的催化剂动态行为，这需要实时原子尺度观察。高空间、时间和能量分辨率使最先进的像差校正环境透射电子显微镜 (ETEM) 成为跟踪催化剂演变和 SWCNT 生长的卓越工具。

更新日期：2022-11-17

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