Uniform Decoration of Reduced Graphene Oxide Sheets with Gold Nanoparticles
A simple method employing ionic liquid functionalization is developed to achieve the uniform decoration of reduced graphene oxide sheets with gold nanoparticles. The synthesis of ionic liquid modified graphene oxide is accomplished by covalently binding 1-(3-Aminopropyl) imidazole with GO sheets. Th...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2012/328565 |
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| author | Huanping Yang Weiwei Zhou Bo Yu Yingying Wang Chunxiao Cong Ting Yu |
| author_facet | Huanping Yang Weiwei Zhou Bo Yu Yingying Wang Chunxiao Cong Ting Yu |
| author_sort | Huanping Yang |
| collection | DOAJ |
| description | A simple method employing ionic liquid functionalization is developed to achieve the uniform decoration of reduced graphene oxide sheets with gold nanoparticles. The synthesis of ionic liquid modified graphene oxide is accomplished by covalently binding 1-(3-Aminopropyl) imidazole with GO sheets. The formation mechanism of Au nanoparticles on RGO sheets is proposed to load AuCl4- onto the surface of GO sheets through anion exchange; then reduce AuCl4- to Au NPs and at the same time reduce GO sheets to RGO sheets via a one-step process. The presence of Au NPs is well identified by SEM, TEM, and XPS. As a concept, the RGO-supported Au NPs is applied to surface-enhanced Raman spectroscopy. |
| format | Article |
| id | doaj-art-b4ac7951743c4c04a358dd8a2b120a8a |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-b4ac7951743c4c04a358dd8a2b120a8a2025-02-03T00:59:13ZengWileyJournal of Nanotechnology1687-95031687-95112012-01-01201210.1155/2012/328565328565Uniform Decoration of Reduced Graphene Oxide Sheets with Gold NanoparticlesHuanping Yang0Weiwei Zhou1Bo Yu2Yingying Wang3Chunxiao Cong4Ting Yu5Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, SingaporeDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, SingaporeDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, SingaporeDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, SingaporeDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, SingaporeDivision of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, SingaporeA simple method employing ionic liquid functionalization is developed to achieve the uniform decoration of reduced graphene oxide sheets with gold nanoparticles. The synthesis of ionic liquid modified graphene oxide is accomplished by covalently binding 1-(3-Aminopropyl) imidazole with GO sheets. The formation mechanism of Au nanoparticles on RGO sheets is proposed to load AuCl4- onto the surface of GO sheets through anion exchange; then reduce AuCl4- to Au NPs and at the same time reduce GO sheets to RGO sheets via a one-step process. The presence of Au NPs is well identified by SEM, TEM, and XPS. As a concept, the RGO-supported Au NPs is applied to surface-enhanced Raman spectroscopy.http://dx.doi.org/10.1155/2012/328565 |
| spellingShingle | Huanping Yang Weiwei Zhou Bo Yu Yingying Wang Chunxiao Cong Ting Yu Uniform Decoration of Reduced Graphene Oxide Sheets with Gold Nanoparticles Journal of Nanotechnology |
| title | Uniform Decoration of Reduced Graphene Oxide Sheets with Gold Nanoparticles |
| title_full | Uniform Decoration of Reduced Graphene Oxide Sheets with Gold Nanoparticles |
| title_fullStr | Uniform Decoration of Reduced Graphene Oxide Sheets with Gold Nanoparticles |
| title_full_unstemmed | Uniform Decoration of Reduced Graphene Oxide Sheets with Gold Nanoparticles |
| title_short | Uniform Decoration of Reduced Graphene Oxide Sheets with Gold Nanoparticles |
| title_sort | uniform decoration of reduced graphene oxide sheets with gold nanoparticles |
| url | http://dx.doi.org/10.1155/2012/328565 |
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