Self-healing nanocomposites via N-doped GO promoted “click chemistry”

Abstract

N-doped graphene stabilized Cu(I)-catalyzed self-healing nanocomposites are developed. The study found the use of N-doped graphene as both the nanostructured material for enhancing mechanical and conductive properties as well as catalyst promoter (scaffold for catalytic copper (I) particles), helpful to trigger self-healing via “click chemistry”. Due to an increase in electron density on the nitrogen atom doping, including the coordination of N-doped rGO with Cu+ ions, nitrogen-doped graphene-supported copper particles demonstrate a higher reaction yield at room temperature without adding any external ligand/base. In this study, only one component (an azide moiety containing healing agent) was encapsulated, whereas another component (the alkyne moiety containing healing agent) was as such (without encapsulation) homogeneously dispersed in the matrix. Triggered capsule rupture then induces contact of the healing agents with the N-doped graphene-based catalyst and the alkyne molecules dispersed in the matrix, inducing "click"-reaction, allowing to repair onsite damage as determined by mechanical measurements entirely. Tensile measurements were also performed in molecular dynamics (MD) simulations to support the findings. Given the enormous importance of autonomic repair of materials damage, this concept here reports a trustworthy and reliable chemical system with a high level of robustness.

Article information

Article type
Paper
Submitted
28 Oct 2022
Accepted
24 Nov 2022
First published
24 Nov 2022

Soft Matter, 2022, Accepted Manuscript

Self-healing nanocomposites via N-doped GO promoted “click chemistry”

S. Rana, S. P. Sanka, P. Singh, A. K. Mishra, P. Kumar, M. Singh, N. G. Sahoo, W. H. Binder, G. J. Yun and C. W. Park, Soft Matter, 2022, Accepted Manuscript , DOI: 10.1039/D2SM01423H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements