Selectively Expanding Graphene Oxide Paper for Creating Multifunctional Carbon Materials
| Autor: | Zhufeng Lu, Lianwen Zhu, Shulong Cao, Xuebo Cao, Jinmei Zhu, Li Gu |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
Graphene Intercalation (chemistry) Nanoparticle chemistry.chemical_element Nanotechnology Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention General Energy Membrane chemistry law Molecule Physical and Theoretical Chemistry Layer (electronics) Carbon Graphene oxide paper |
| Zdroj: | The Journal of Physical Chemistry C. 116:23075-23082 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp307296u |
| Popis: | Flexible, paper-based graphene and graphene oxides are now emerging as a new class of materials with a variety of applications in electrochemical devices, novel composites, antibacterial agents, separation membranes, and so on. But the tight layer and the poor permeability limit their applications in the fields requiring permeable layers and tunable layer spacing. We demonstrate that the temperature-dependent decomposition reaction of ammonium nitrate can be utilized to modulate the layer spacing of graphene oxide paper and modify its permeability. Unlike the commonly used intercalation method, our strategy enables the layer spacing of the paper to be expanded over large range (123%–20 000%) and avoids the occupation of layer room by guest molecules. Dependent on the expansion amplitude, the papers exhibit a variety of interesting applications, including the highly efficient exclusion of small organic molecules, the separation of ultrathin nanoparticles, and the loading of polar and nonpolar guest molecul... |
| Databáze: | OpenAIRE |
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