Graphene Based Composites For Futre Applications Shaowei Zhang College of Engineering, Mathematics and Physical Sciences The University of Exeter.

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Presentation transcript:

Graphene Based Composites For Futre Applications Shaowei Zhang College of Engineering, Mathematics and Physical Sciences The University of Exeter

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

Graphene Based Composites (1) Polymer-Graphene Composites Metal-Graphene Composites Ceramic-Graphene Composites

Graphene Based Composites (2) Coating/Film/Paper Form Sandwich Form Bulk form

Useful Properties of Graphene in Composites Functional (e.g., Electrical) properties Thermal properties Mechanical properties + Lightweight, unique morphology, chemical stability.

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

Functional Graphene Composites (2) Supercapacitors: 1) Graphene-oxide (e.g., ZnO, SnO 2, Co 3 O 4, MnO 2 ) 2) Graphene-polymer 3) Graphene-CNT

Functional Graphene Composites (3) Solar Cells 1) Graphene-TiO 2 2) Graphene-quantum dots Photocatalysts E.g., graphene-TiO 2 Fuel Cells: Graphene-oxide

Thermal Conductive Graphene Composites Intrinsic thermal conductivity: 3000–5000 W/mK (>100 times >Cu) Graphene-metal & Graphene-polymer composites Potential applications: Electronic circuit boards, heat sink and light weight high performance thermal management systems.

Graphene Reinforced Composites Mechanical properties: 1) Stiffest (E > 1 Tpa), 2) Strength: >100-GPa tensile strength (40 times > steel). Morphology: 2D shape  Ideal reinforcement phases to make stronger and tougher composites for various applications

Graphene Reinforced Composites: Potential Applications Lightweight composites for aerospace & automotive industries Lightweight body/vehicle armours Biomaterials (biocompatibility + reinforcement) Composite brake discs