Ambient solid-state mechano-chemical reactions between functionalized carbon nanotubes
| Autor: | Yongi Gong, Gustavo Brunetto, Sehmus Ozden, Douglas S. Galvao, Mohamad A. Kabbani, Chandra Sekhar Tiwary, Ahmad T. Kabbani, Anirban Som, Thalappil Pradeep, Robert Vajtai, Pedro Alves da Silva Autreto, K. R. Krishnadas, Ken Hackenberg, Pulickel M. Ajayan |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
energy dissipation
General Physics and Astronomy thermal alteration Chemical reaction law.invention Molecular dynamics law Raman spectrometry infrared spectroscopy Multidisciplinary fullerene carboxyl group simulation Condensed Matter::Mesoscopic Systems and Quantum Hall Effect solid polymerization carboxylic acid differential scanning calorimetry room temperature scanning electron microscopy thermal analysis chemical reaction spectroscopy roentgen spectroscopy Nanotube Nanostructure Materials science microstructure Selective chemistry of single-walled nanotubes Nanotechnology Carbon nanotube hydroxyl group Article General Biochemistry Genetics and Molecular Biology Condensed Matter::Materials Science transmission electron microscopy water vapor mechanochemical reaction carbon nanotube density functional theory multi walled nanotube hydrogen bond Graphene carbon graphene Condensation solid state General Chemistry grinding molecular dynamics condensation Chemical engineering ambient air proton transport |
| Zdroj: | Nature Communications |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/ncomms8291 |
| Popis: | 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. Direct coupling between chemical groups on individual nanostructures may lead to new architectures and reactions. Here, the authors report an ambient mechano-chemical reaction between two different reactant carbon nanotube varieties, which produces condensation products and unzipping of the nanotube structure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|