Simultaneous Inside and Outside Functionalization of Single-Walled Carbon Nanotubes

Kraus J, Meingast L, Hald J, Beil SB, Biskupek J, Ritterhoff C, Gsänger S, Eisenkolb J, Meyer B, Kaiser U, Maultzsch J, von Delius M (2024)

Publication Type: Journal article

Publication year: 2024

Journal

DOI: 10.1002/anie.202402417

Abstract

Functionalizing single-walled carbon nanotubes (SWCNTs) in a robust way that does not affect the sp² carbon framework is a considerable research challenge. Here we describe how triiodide salts of positively charged macrocycles can be used not only to functionalize SWCNTs from the outside, but simultaneously from the inside. We employed disulfide exchange in aqueous solvent to maximize the solvophobic effect and therefore achieve a high degree of macrocycle immobilization. Characterization by Raman spectroscopy, EDX-STEM and HR-TEM clearly showed that serendipitously this wet-chemical functionalization procedure also led to the encapsulation of polyiodide chains inside the nanotubes. The resulting three-shell composite materials are redox-active and experience an intriguing interplay of electrostatic, solvophobic and mechanical effects that could be of interest for applications in energy storage.

Authors with CRIS profile

Additional Organisation(s)

Involved external institutions

Universität Ulm Germany (DE)

How to cite

APA:

Kraus, J., Meingast, L., Hald, J., Beil, S.B., Biskupek, J., Ritterhoff, C.,... von Delius, M. (2024). Simultaneous Inside and Outside Functionalization of Single-Walled Carbon Nanotubes. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.202402417

MLA:

Kraus, Jan, et al. "Simultaneous Inside and Outside Functionalization of Single-Walled Carbon Nanotubes." Angewandte Chemie International Edition (2024).

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