利用水蒸气提高单壁碳纳米管与乙基纤维素复合材料的电导率

Enhancing Electrical Conductivity of Composites of Single-Walled Carbon Nanotubes and Ethyl Cellulose with Water Vapor.

作者信息

Rdest Monika, Janas Dawid

机构信息

Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK.

Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, 44-100 Gliwice, Poland.

出版信息

Materials (Basel). 2020 Dec 17;13(24):5764. doi: 10.3390/ma13245764.

DOI:10.3390/ma13245764

PMID:33348674

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7767263/

Abstract

Electrically conducting composites are highly sought-after materials. Their capacity to withstand mechanical deformation while simultaneously offering facile charge transport recently opened numerous exploitation fields for them. In this contribution, composites were made from single-walled carbon nanotubes (SWCNTs) and ethyl cellulose (EC). Then, a straightforward process of doping involving water vapor was developed and tested over 30 days. The inclusion of water in the EC/SWCNT network resulted in a notable increase in the electrical conductivity from 250 ± 21 S/cm to 905 ± 34 S/cm. Interestingly, doping of the material experienced remarkable stability due to the favorable surface chemistry of the EC filler.

摘要

导电复合材料是备受追捧的材料。它们能够承受机械变形，同时提供便捷的电荷传输，这一特性最近为它们开辟了众多应用领域。在本研究中，复合材料由单壁碳纳米管（SWCNT）和乙基纤维素（EC）制成。然后，开发了一种涉及水蒸气的简单掺杂工艺，并在30天内进行了测试。在EC/SWCNT网络中加入水后，电导率从250±21 S/cm显著提高到905±34 S/cm。有趣的是，由于EC填料良好的表面化学性质，该材料的掺杂具有显著的稳定性。