Fabrication and morphology tuning of graphene oxide nanoscrolls
Here we report the synthesis of graphene oxide nanoscrolls (GONS) with tunable dimensions via low and high frequency ultrasound solution processing techniques. GONS can be visualized as a graphene oxide (GO) sheet rolled into a spiral-wound structure and represent an alternative to traditional carbo...
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| Format: | Article |
| Language: | en_US |
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Royal Society of Chemistry
2016
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| Online Access: | http://hdl.handle.net/1721.1/103543 https://orcid.org/0000-0003-3229-7315 https://orcid.org/0000-0003-3530-5819 |
| _version_ | 1826206663341768704 |
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| author | Amadei, Carlo A. Stein, Itai Y. Silverberg, Gregory J. Wardle, Brian L. Vecitis, Chad D. |
| author2 | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics |
| author_facet | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Amadei, Carlo A. Stein, Itai Y. Silverberg, Gregory J. Wardle, Brian L. Vecitis, Chad D. |
| author_sort | Amadei, Carlo A. |
| collection | MIT |
| description | Here we report the synthesis of graphene oxide nanoscrolls (GONS) with tunable dimensions via low and high frequency ultrasound solution processing techniques. GONS can be visualized as a graphene oxide (GO) sheet rolled into a spiral-wound structure and represent an alternative to traditional carbon nano-morphologies. The scrolling process is initiated by the ultrasound treatment which provides the scrolling activation energy for the formation of GONS. The GO and GONS dimensions are observed to be a function of ultrasound frequency, power density, and irradiation time. Ultrasonication increases GO and GONS C–C bonding likely due to in situ thermal reduction at the cavitating bubble–water interface. The GO area and GONS length are governed by two mechanisms; rapid oxygen defect site cleavage and slow cavitation mediated scission. Structural characterization indicates that GONS with tube and cone geometries can be formed with both narrow and wide dimensions in an industrial-scale time window. This work paves the way for GONS implementation for a variety of applications such as adsorptive and capacitive processes. |
| first_indexed | 2024-09-23T13:36:38Z |
| format | Article |
| id | mit-1721.1/103543 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:36:38Z |
| publishDate | 2016 |
| publisher | Royal Society of Chemistry |
| record_format | dspace |
| spelling | mit-1721.1/1035432022-09-28T15:01:45Z Fabrication and morphology tuning of graphene oxide nanoscrolls Amadei, Carlo A. Stein, Itai Y. Silverberg, Gregory J. Wardle, Brian L. Vecitis, Chad D. Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Massachusetts Institute of Technology. Department of Mechanical Engineering Stein, Itai Y. Wardle, Brian L. Here we report the synthesis of graphene oxide nanoscrolls (GONS) with tunable dimensions via low and high frequency ultrasound solution processing techniques. GONS can be visualized as a graphene oxide (GO) sheet rolled into a spiral-wound structure and represent an alternative to traditional carbon nano-morphologies. The scrolling process is initiated by the ultrasound treatment which provides the scrolling activation energy for the formation of GONS. The GO and GONS dimensions are observed to be a function of ultrasound frequency, power density, and irradiation time. Ultrasonication increases GO and GONS C–C bonding likely due to in situ thermal reduction at the cavitating bubble–water interface. The GO area and GONS length are governed by two mechanisms; rapid oxygen defect site cleavage and slow cavitation mediated scission. Structural characterization indicates that GONS with tube and cone geometries can be formed with both narrow and wide dimensions in an industrial-scale time window. This work paves the way for GONS implementation for a variety of applications such as adsorptive and capacitive processes. United States. Dept. of Defense (National Defense Science and Engineering Graduate Fellowship (NDSEG) Program) United States. Army Research Office (contract W911NF-07-D-0004) National Science Foundation (U.S.) (NSF award number ECS-0335765) 2016-07-07T20:13:39Z 2016-07-07T20:13:39Z 2016-02 2015-11 Article http://purl.org/eprint/type/JournalArticle 2040-3364 2040-3372 http://hdl.handle.net/1721.1/103543 Amadei, Carlo A., Itai Y. Stein, Gregory J. Silverberg, Brian L. Wardle, and Chad D. Vecitis. “Fabrication and Morphology Tuning of Graphene Oxide Nanoscrolls.” Nanoscale 8, no. 12 (2016): 6783–6791. https://orcid.org/0000-0003-3229-7315 https://orcid.org/0000-0003-3530-5819 en_US http://dx.doi.org/10.1039/c5nr07983g Nanoscale Creative Commons Attribution 3.0 Unported licence http://creativecommons.org/licenses/by/3.0/ application/pdf Royal Society of Chemistry Royal Society of Chemistry |
| spellingShingle | Amadei, Carlo A. Stein, Itai Y. Silverberg, Gregory J. Wardle, Brian L. Vecitis, Chad D. Fabrication and morphology tuning of graphene oxide nanoscrolls |
| title | Fabrication and morphology tuning of graphene oxide nanoscrolls |
| title_full | Fabrication and morphology tuning of graphene oxide nanoscrolls |
| title_fullStr | Fabrication and morphology tuning of graphene oxide nanoscrolls |
| title_full_unstemmed | Fabrication and morphology tuning of graphene oxide nanoscrolls |
| title_short | Fabrication and morphology tuning of graphene oxide nanoscrolls |
| title_sort | fabrication and morphology tuning of graphene oxide nanoscrolls |
| url | http://hdl.handle.net/1721.1/103543 https://orcid.org/0000-0003-3229-7315 https://orcid.org/0000-0003-3530-5819 |
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