Graphite-shell-chains selectively and efficiently produced from biomass rich in cellulose and chitin

Area of Science:

• Materials Science
• Geochemistry
• Biotechnology

Background:

• Graphite-shell-chains are worm-like nanocarbons with graphitic structure and mesopores.
• They are produced from wood via metal-catalyzed carbonization at 900°C.
• Biogenic graphite, similar in structure, was found to be 3.7 billion years old, predating wood.

Purpose of the Study:

• To investigate alternative carbon precursors for graphite-shell-chain production.
• To explore the possibility of ancient graphite-shell-chain formation.
• To assess the potential of biomass-derived nanocarbons for sustainable development.

Main Methods:

• Carbonization of various biomass materials rich in cellulose and chitin using iron-group metal catalysts.
• Analysis of the resulting nanocarbon structures and their formation mechanisms.
• Comparison with ancient biogenic graphite.

Main Results:

• Selective and efficient carbon production from cellulose- and chitin-rich biomass.
• Biomass provides an amorphous carbon matrix ideal for catalyst activity.
• Formation of graphite-shell-chains from non-wood precursors is feasible.
• Suggests graphite-shell-chains could have formed in ancient environments.

Conclusions:

• Biomass-derived graphite-shell-chains can be efficiently produced.
• The findings support the hypothesis of ancient graphite-shell-chain existence.
• Applications of this nanocarbon align with sustainable development goals.