journal article·2025-03-21Open access

Directed Assembly and Microstructural Control of Carbon Nanotube Fibers via Carbon Source Manipulation

Yutao Niu, Zhao He, Shan Wang, Zhengpeng Yang, Eman A. Ayob, Mohammed A. Amin, Liming Zhao, Yufang Cao, Zhanhu Guo, Yongyi Zhang

ACS Applied Nano Materials· Volume 8· Issue 11

Abstract

High Resolution Image Download MS PowerPoint Slide Floating catalyst chemical vapor deposition (FCCVD) is recognized as a pivotal technique for fabricating high-performance carbon nanotube fibers (CNTFs). However, the role of carbon-source-directed growth and assembly in regulating the alignment and densification of CNTFs has received limited attention. Herein, we systematically investigated the assembly and microstructural regulation mechanisms of CNTFs via adjusting carbon sources (e.g., ethanol and acetone) in the FCCVD process. Analysis results demonstrate that compared with tangled few-wall carbon nanotubes (CNTs) derived from ethanol, the rigid multiwall CNTs with acetone as the carbon source tend to be aligned and densely arranged during gas-phase assembly, thus improving the strength of CNTFs. As a result, the acetone-derived CNTF with low entangled morphology showcases superior alignment and mechanical properties compared to those of ethanol-derived CNTF. This work offers critical insights and guidance for the direct floating-spinning of high-performance CNTFs.
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Research context

OpenAlex topics: Carbon Nanotubes in Composites · Graphene research and applications · Force Microscopy Techniques and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Nano-Tech and Nano-Bionics

University of Science and Technology of China

Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics

Chinese Academy of Sciences

Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials

Jiangxi Insitute of Nanotechnology

College of Chemistry and Chemical Engineering/Film Energy Chemistry for Jiangxi Provincial Key Laboratory (FEC), Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China

Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering

Henan Polytechnic University

Department of Chemistry, Khurmah University College

Taif University

Department of Chemistry, College of Science

Integrated Composites Lab, Department of Mechanical and Construction Engineering

Northumbria University

Funding

China Postdoctoral Science Foundation · Taif University · National Natural Science Foundation of China · Jiangxi Provincial Key Laboratory of Carbonene Materials

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