Labeling graphene oxygen groups with europium
Graphene-related materials contain chemically bonded oxygen atoms in the form of epoxy, hydroxy, carboxy, and carbonyl groups. It is important to determine the quantity of oxygen atoms and to understand their position on the graphene sheet. However, visualization of these groups by standard methods...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Online Access: | https://hdl.handle.net/10356/106587 http://hdl.handle.net/10220/25053 http://dx.doi.org/10.1002/cphc.201402742 |
| _version_ | 1826110674395201536 |
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| author | Ambrosi, Adriano Pumera, Martin |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Ambrosi, Adriano Pumera, Martin |
| author_sort | Ambrosi, Adriano |
| collection | NTU |
| description | Graphene-related materials contain chemically bonded oxygen atoms in the form of epoxy, hydroxy, carboxy, and carbonyl groups. It is important to determine the quantity of oxygen atoms and to understand their position on the graphene sheet. However, visualization of these groups by standard methods is a challenge. Here, we utilize europium(III) as a selective label for oxygen-containing groups. We studied three different graphene-related materials: 1) graphene oxide, 2) chemically reduced graphene oxide, and 3) thermally reduced graphene oxide (the number of oxygen containing groups decreases from material 1 to 3). We show that it is possible to efficiently use Eu as a label of oxygen-containing groups. This Eu label could be applied to determine the precise location of oxygen-containing groups on graphene sheets and also induce novel optical, electrochemical, and catalytic properties. |
| first_indexed | 2024-10-01T02:38:21Z |
| format | Journal Article |
| id | ntu-10356/106587 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:38:21Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1065872019-12-06T22:14:37Z Labeling graphene oxygen groups with europium Ambrosi, Adriano Pumera, Martin School of Physical and Mathematical Sciences DRNTU::Science::Chemistry::Organic chemistry::Carbanions Graphene-related materials contain chemically bonded oxygen atoms in the form of epoxy, hydroxy, carboxy, and carbonyl groups. It is important to determine the quantity of oxygen atoms and to understand their position on the graphene sheet. However, visualization of these groups by standard methods is a challenge. Here, we utilize europium(III) as a selective label for oxygen-containing groups. We studied three different graphene-related materials: 1) graphene oxide, 2) chemically reduced graphene oxide, and 3) thermally reduced graphene oxide (the number of oxygen containing groups decreases from material 1 to 3). We show that it is possible to efficiently use Eu as a label of oxygen-containing groups. This Eu label could be applied to determine the precise location of oxygen-containing groups on graphene sheets and also induce novel optical, electrochemical, and catalytic properties. 2015-02-13T06:08:42Z 2019-12-06T22:14:37Z 2015-02-13T06:08:42Z 2019-12-06T22:14:37Z 2015 2015 Journal Article Ambrosi, A., & Pumera, M. (2015). Labeling graphene oxygen groups with europium. ChemPhysChem, 16(2), 331-334. 1439-4235 https://hdl.handle.net/10356/106587 http://hdl.handle.net/10220/25053 http://dx.doi.org/10.1002/cphc.201402742 en ChemPhysChem © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | DRNTU::Science::Chemistry::Organic chemistry::Carbanions Ambrosi, Adriano Pumera, Martin Labeling graphene oxygen groups with europium |
| title | Labeling graphene oxygen groups with europium |
| title_full | Labeling graphene oxygen groups with europium |
| title_fullStr | Labeling graphene oxygen groups with europium |
| title_full_unstemmed | Labeling graphene oxygen groups with europium |
| title_short | Labeling graphene oxygen groups with europium |
| title_sort | labeling graphene oxygen groups with europium |
| topic | DRNTU::Science::Chemistry::Organic chemistry::Carbanions |
| url | https://hdl.handle.net/10356/106587 http://hdl.handle.net/10220/25053 http://dx.doi.org/10.1002/cphc.201402742 |
| work_keys_str_mv | AT ambrosiadriano labelinggrapheneoxygengroupswitheuropium AT pumeramartin labelinggrapheneoxygengroupswitheuropium |