Graphene production by cracking

Area of Science:

• Materials Science
• Nanotechnology
• Surface Chemistry

Background:

• Graphene's unique properties (impermeability, conductivity, high strength-to-weight ratio) enable diverse industrial applications.
• Current limitations include cost-effective, high-quality material availability and effective incorporation into product matrices.
• Graphene oxide and other 2D materials also face similar challenges.

Purpose of the Study:

• To discuss various graphene production methods and their impact on material quality.
• To evaluate the energy input required for different production routes.
• To identify optimal methods for producing high-quality graphene for industrial demands.

Main Methods:

• Analysis of top-down production routes: chemical, electrochemical, and high-pressure mechanical exfoliation.
• Assessment of graphene quality (thickness, defects) based on production method.
• Evaluation of energy efficiency and yield for each method.

Main Results:

• Graphene with average thickness below five layers was produced by multiple methods, exhibiting varying defect levels.
• High-pressure exfoliation yielded a greater quantity of graphene with fewer layers compared to other methods.
• Production methods significantly impact graphene quality and suitability for specific end applications.

Conclusions:

• Overcoming challenges in cost-effective production and material incorporation is crucial for widespread graphene adoption.
• High-pressure exfoliation appears promising for industrial-scale production of high-quality, few-layer graphene.
• Chemically tuning graphene via functionalization facilitates its integration into various matrices, driving future demand.