Graphene oxide prepared by graphene nanoplatelets and reduced by laser treatment
| Autor: | Antonio Ambrosio, Gianfranco Carotenuto, Ubaldo Coscia, L. Aversa, Angela Longo, Roberta Tatti, Emanuele Orabona, P. Maddalena, Roberto Verucchi |
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| Přispěvatelé: | Longo, A., Verucchi, R., Aversa, L., Tatti, R., Ambrosio, A., Orabona, E., Coscia, U., Carotenuto, G., Maddalena, P. |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
graphite nanoplatelets Oxide Graphite oxide Nanotechnology Bioengineering 02 engineering and technology Substrate (electronics) 010402 general chemistry laser photoreduction 01 natural sciences reduced graphene oxide law.invention chemistry.chemical_compound symbols.namesake law graphite nanoplatelet General Materials Science Mechanics of Material Graphite Thin film Electrical and Electronic Engineering Graphene oxide paper Graphene Mechanical Engineering Chemistry (all) General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Chemical engineering chemistry Mechanics of Materials symbols graphene oxide Materials Science (all) 0210 nano-technology Raman spectroscopy |
| Zdroj: | Nanotechnology (Bristol. Print) 28 (2017): 224002-1–224002-8. doi:10.1088/1361-6528/aa6c3c info:cnr-pdr/source/autori:Longo, A.; Verucchi, R.; Aversa, L.; Tatti, R.; Ambrosio, A.; Orabona, E.; Coscia, U.; Carotenuto, G.; Maddalena, P./titolo:Graphene oxide prepared by graphene nanoplatelets and reduced by laser treatment/doi:10.1088%2F1361-6528%2Faa6c3c/rivista:Nanotechnology (Bristol. Print)/anno:2017/pagina_da:224002-1/pagina_a:224002-8/intervallo_pagine:224002-1–224002-8/volume:28 |
| ISSN: | 1361-6528 |
| DOI: | 10.1088/1361-6528/aa6c3c |
| Popis: | The Hummers' method for graphite oxide (GO) preparation has been applied to graphite nanoplatelets, in order to achieve higher reaction yield and faster kinetics. Aqueous GO solutions have been used to produce uniform GO films on a polyethylene terephthalate substrate, generating graphene patterns in a controlled way (widths of a few tens of microns). The reduction of GO deposited on the polymeric substrate has been performed by using a Nd:YVO4 continuous-wave frequency-duplicated laser. Spectroscopic and diffractometric characterizations (FT-IR, visible-NIR, Raman, XPS, and XRD) have shown that the reduction process induced by the laser annealing technique is mainly due to dehydration of the GO layers. It has been obtained by means of a suitable laser optical apparatus, a controlled reduction of GO without damaging the substrate, and precise writing of micro-tracks that can be used as electrically and thermally conductive patterns. |
| Databáze: | OpenAIRE |
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