Graphene Based Composites For Futre Applications

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Graphene Based Composites For Futre Applications

• Shaowei Zhang
•  College of Engineering, Mathematics and Physical
  Sciences
• The University of Exeter

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Outline

• Types of graphene based composites
• Useful properties of graphene in composites
• Potential applications of various types of
  graphhene composites

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Graphene Based Composites (1)

• Polymer-Graphene Composites
• Metal-Graphene Composites
• Ceramic-Graphene Composites

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Graphene Based Composites (2)

• Coating/Film/Paper Form
• Sandwich Form
• Bulk form

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Useful Properties of Graphene in Composites

• Functional (e.g., Electrical) properties
• Thermal properties
• Mechanical properties
• Lightweight, unique morphology, chemical
  stability.

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Functional Graphene Composites (1)

• Li-Ion Batteries
• 1) Graphene-metal oxide (e.g., SnO2)
• 2) Graphene-CNT
• 3) Graphene-C60

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Functional Graphene Composites (2)

• Supercapacitors
• 1) Graphene-oxide (e.g., ZnO, SnO2, Co3O4, MnO2)
• 2) Graphene-polymer
• 3) Graphene-CNT

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Functional Graphene Composites (3)

• Solar Cells
• 1) Graphene-TiO2
• 2) Graphene-quantum dots
• Photocatalysts
• E.g., graphene-TiO2
• Fuel Cells Graphene-oxide

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Thermal Conductive Graphene Composites

• Intrinsic thermal conductivity 30005000 W/mK
  (gt100 times gtCu)
• Graphene-metal Graphene-polymer composites
• Potential applications Electronic circuit
  boards, heat sink and light weight high
  performance thermal management systems.

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Graphene Reinforced Composites

• Mechanical properties
• 1) Stiffest (E gt 1 Tpa),
• 2) Strength gt100-GPa tensile strength (40 times
  gt steel).
• Morphology 2D shape
• ? Ideal reinforcement phases to make stronger
  and tougher composites for various applications

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Graphene Reinforced Composites Potential
Applications

• Lightweight composites for aerospace automotive
  industries
• Lightweight body/vehicle armours
• Biomaterials (biocompatibility reinforcement)
• Composite brake discs