Nanoforms of carbon V. DHANYA III B.Sc. CHEMISTRY SEETHALAKSHMI RAMASWAMI COLLEGE
Overview Introduction General method for synthesis Classification of carbon nanoforms Applications of different carbon nanoforms Challenges faced in this fields Opportunity rising over this nanoforms
Introduction What is Atom ? What is Carbon atom ?
Natural Forms of Carbon Diamond- 3D carbon crystal lattice Graphite- 2D sheets of carbon atoms arranged in hexagonal lattice Singh, 2008
Nanoforms Size – 1 to 100 nm Exabit unique properties and behaviour at nanoscale Examples- Nanoparticles, nanowires, nanotubes, nanosheets Singh, 2008
Synthesis 1. Chemical vapor deposition method 2. Electric arc discharge method 3. Laser ablation method Jagdeesan et al., 2020
Diversity of carbon nanoforms
Fullerenes Nanoparticles Spherical hollow cluster of carbon atoms without dimension Resembles a soccer ball Atoms arranged in pentagonal, hexagonal rings
Applications
Carbon Nanotubes One dimensional resembles a tube of carbon atoms Extremely robust and difficult to break but still light Bonding between carbon atom is very strong
Applications
Graphene Nanomaterials Two dimensional single layer of carbon atoms Arranged in honeycomb lattice Carbon carbon bond distance is about 0.142 nm
Applications
Carbyne Nanomaterial One dimensional having very long chain of carbon atoms Material with extremely interesting electronic and mechanical properties
APPLICATIONS
Opportunities 1. Light weight and high strength advanced materials 2. Faster and more efficient electronic devices 3. Energy storage and conversion 4. Biomedical applications 5. environmental remediation
Challenges 1. Large scale production 2. Precise control of structure and properties 3. High cost of production 4. Integration into practical application