用聚乙烯亚胺对单壁碳纳米管进行有效掺杂

Effective Doping of Single-Walled Carbon Nanotubes with Polyethyleneimine.

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 25;14(1):65. doi: 10.3390/ma14010065.

DOI:10.3390/ma14010065

PMID:33375643

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7795803/

Abstract

More and more electrically conducting materials are required to sustain the technological progress of civilization. Faced with the performance limits of classical materials, the R&D community has put efforts into developing nanomaterials, which can offer sufficiently high operational parameters. In this work, single-walled carbon nanotubes (SWCNTs) were doped with polyethyleneimine (PEI) to create such material. The results show that it is most fruitful to combine these components at the synthesis stage of an SWCNT network from their dispersion. In this case, the electrical conductivity of the material is boosted from 249 ± 21 S/cm to 1301 ± 56 S/cm straightforwardly and effectively.

摘要

为了维持文明的技术进步，对导电材料的需求日益增加。面对传统材料的性能限制，研发界致力于开发能够提供足够高运行参数的纳米材料。在这项工作中，将聚乙烯亚胺（PEI）掺杂到单壁碳纳米管（SWCNT）中以制备此类材料。结果表明，在由SWCNT分散体制备SWCNT网络的合成阶段将这些组分结合起来效果最佳。在这种情况下，材料的电导率直接且有效地从249±21 S/cm提高到1301±56 S/cm。