graphene presentation

1. GRAPHENE RUBBER
NANOCOMPOSITES
In collaboration with Argo
Student: Valentina Diamante
Supervisor: Claudia Marano

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

4. Graphene or graphite?

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

6. Graphene

7. Graphene