Weitere ähnliche Inhalte
Kürzlich hochgeladen (20)
Graphene djkscfj presentation.pptx
- 2. Hybridized 𝑠𝑝2
bonding
In-plane σ bonds rigid backbone
Out-of plane π bonds layers interaction
What is graphene
0D Fullerene 1D Nanotube 3D Graphite
- 3. Graphene classification
Number of layers
Single layer graphene (SLG)
Bilayer graphene (BLG)
Few-layer graphene (FLG): 3 – 10 layers
C/O atomic ratio
Graphene oxide (GO)
Reduced graphene oxide (rGO)
Average lateral size
Graphene nanoplates
Graphene microplates
Graphite more than 10 layers
- 5. Graphene properties
Elastic modulus ~1 𝑇𝑃𝑎
Tensile strength 130 𝐺𝑃𝑎
Fatigue resistance 109 cycles at mean stress of 71 𝐺𝑃𝑎
Thermal conductivity ~5300 𝑊/𝑚𝐾
Electrical conductivity 6000 𝑆/𝑐𝑚−1
Surface area 2630– 2965 m2
/𝑔