Imaging the reactivity and width of graphene’s boundary region
- The reactivity of graphene at its boundary region has been imaged using non-linear spectroscopy to address the controversy whether the terraces of graphene or its edges are more reactive. Graphene was functionalised with phenyl groups, and we subsequently scanned our vibrational sum-frequency generation setup from the functionalised graphene terraces across the edges. A greater phenyl signal is clearly observed at the edges, showing evidence of increased reactivity in the boundary region. We estimate an upper limit of 1 mm for the width of the CVD graphene boundary region.
| Author: | Huda S. AlSalemORCiD, Soha T. Al-Goul, Alejandro García-Miranda FerrariORCiD, Dale A. C. BrownsonORCiD, Luis VelardeORCiD, Sven P. K. KöhlerORCiD |
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| URN: | urn:nbn:de:bsz:960-opus4-22589 |
| DOI: | https://doi.org/10.25968/opus-2258 |
| DOI original: | https://doi.org/10.1039/D0CC02675A |
| ISSN: | 1364-548X |
| Parent Title (English): | Chemical Communications |
| Document Type: | Article |
| Language: | English |
| Year of Completion: | 2020 |
| Publishing Institution: | Hochschule Hannover |
| Release Date: | 2022/05/19 |
| GND Keyword: | Graphen; Reaktivität; Nichtlineare Spektroskopie |
| Volume: | 56 |
| Issue: | 67 |
| First Page: | 9612 |
| Last Page: | 9615 |
| Link to catalogue: | 1854322710 |
| Institutes: | Fakultät II - Maschinenbau und Bioverfahrenstechnik |
| DDC classes: | 660 Technische Chemie |
| Licence (English): |  Creative Commons - CC BY-NC - Attribution-NonCommercial 3.0 Unported |
