Morphology and Mechanical Property of Compressible Graphene Aerogel
| Autor: | Guang Li, Jun Hong Jin, Bin Wu, Ri Ming Chen |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Scanning electron microscope Graphene Mechanical Engineering Oxide Aerogel Condensed Matter Physics Compression (physics) law.invention Stress (mechanics) chemistry.chemical_compound chemistry Mechanics of Materials law General Materials Science Composite material Porosity Graphene oxide paper |
| Zdroj: | Materials Science Forum. 859:71-74 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.859.71 |
| Popis: | Compressible graphene aerogel (CGA) was prepared via one-step reduction and self-assembly of graphene oxide with urea as reducing agent and then freeze-drying. The morphology and mechanical property of CGA were characterized by scanning electron microscope (SEM) and mechanical testing. The results revealed 3D honeycomb-shaped porous structure was built and ultra-light CGA with density of 6.3 mg·cm-3 was achieved. The CGAs showed exceptional compression performance, which could be compressed to more than 50% of its own height and recover to original state immediately after released. The maximum stress reached to 8.1kPa with 50% strain and decreased quite little after compression up to 100 cycles. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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