NDLI: Chemical Bond Formation between Vertically Aligned Carbon Nanotubes and Metal Substrates at Low Temperatures

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Chemical Bond Formation between Vertically Aligned Carbon Nanotubes and Metal Substrates at Low Temperatures

Content Provider	MDPI
Author	Nawarathne, Chaminda P. Hoque, Abdul Ruhunage, Chethani K. Rahm, Connor E. Alvarez, Noe T.
Copyright Year	2021
Description	The exceptional physical properties of carbon nanotubes (CNTs) have the potential to transform materials science and various industrial applications. However, to exploit their unique properties in carbon-based electronics, CNTs regularly need to be chemically interfaced with metals. Although CNTs can be directly synthesized on metal substrates, this process typically requires temperatures above 350 °C, which is not compatible for many applications. Additionally, the CNTs employed here were highly densified, making them suitable as interconnecting materials for electronic applications. This paper reports a method for the chemical bonding of vertically aligned CNTs onto metal substrates that avoids the need for high temperatures and can be performed at temperatures as low as 80 °C. Open-ended CNTs were directly bonded onto Cu and Pt substrates that had been functionalized using diazonium radical reactive species, thus allowing bond formation with the open-ended CNTs. Careful control during grafting of the organic species onto the metal substrates resulted in functional group uniformity, as demonstrated by FT-IR analysis. Scanning electron microscopy images confirmed the formation of direct connections between the vertically aligned CNTs and the metal substrates. Furthermore, electrochemical characterization and application as a sensor revealed the nature of the bonding between the CNTs and the metal substrates.
Starting Page	9529
e-ISSN	20763417
DOI	10.3390/app11209529
Journal	Applied Sciences
Issue Number	20
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2021-10-14
Access Restriction	Open
Subject Keyword	Applied Sciences Industrial Engineering Carbon Nanotubes Metal–carbon Interface Bond Formation
Content Type	Text
Resource Type	Article

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