Ambient solid-state mechano-chemical reactions between functionalized carbon nanotubes

Mohamad A. Kabbani (), Chandra Sekhar Tiwary, Pedro A.S. Autreto, Gustavo Brunetto, Anirban Som, K.R. Krishnadas, Sehmus Ozden, Ken P. Hackenberg, Yongi Gong, Douglas S. Galvao, Robert Vajtai, Ahmad T. Kabbani, Thalappil Pradeep () and Pulickel M. Ajayan ()
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Mohamad A. Kabbani: Rice University
Chandra Sekhar Tiwary: Rice University
Pedro A.S. Autreto: State University of Campinas
Gustavo Brunetto: State University of Campinas
Anirban Som: DST Unit of Nanoscience and Thematic Unit of Excellence, Indian Institute of Technology Madras
K.R. Krishnadas: DST Unit of Nanoscience and Thematic Unit of Excellence, Indian Institute of Technology Madras
Sehmus Ozden: Rice University
Ken P. Hackenberg: Rice University
Yongi Gong: Department of Chemistry Rice University
Douglas S. Galvao: State University of Campinas
Robert Vajtai: Rice University
Ahmad T. Kabbani: Rice University
Thalappil Pradeep: DST Unit of Nanoscience and Thematic Unit of Excellence, Indian Institute of Technology Madras
Pulickel M. Ajayan: Rice University

Nature Communications, 2015, vol. 6, issue 1, 1-8

Abstract: Abstract Carbon nanotubes can be chemically modified by attaching various functionalities to their surfaces, although harsh chemical treatments can lead to their break-up into graphene nanostructures. On the other hand, direct coupling between functionalities bound on individual nanotubes could lead to, as yet unexplored, spontaneous chemical reactions. Here we report an ambient mechano-chemical reaction between two varieties of nanotubes, carrying predominantly carboxyl and hydroxyl functionalities, respectively, facilitated by simple mechanical grinding of the reactants. The purely solid-state reaction between the chemically differentiated nanotube species produces condensation products and unzipping of nanotubes due to local energy release, as confirmed by spectroscopic measurements, thermal analysis and molecular dynamic simulations.

Date: 2015
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DOI: 10.1038/ncomms8291

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