As an important derivative of graphene, fluorinated graphene, with its covalent bonding of fluorine and carbon atoms, combines the unique structure of two-dimensional materials with the excellent properties of fluorine, making it a research hotspot and application focus in materials science. Its precisely controllable core parameters determine its adaptability and superiority in multiple fields. Among these, specifications with a sheet diameter of 0.4-5 μm, a thickness of <5 nm, a purity of ~98%, and an F content of 47-58% are preferred models for both scientific research and industrial applications due to their balanced performance.
Sheet diameter and thickness, as core physical parameters of fluorinated graphene, directly determine the advantages of its two-dimensional structure. A sheet diameter range of 0.4-5 μm avoids agglomeration caused by excessively small sheet sizes, ensuring good stability in dispersed systems, while also balancing the flexibility and coverage of the two-dimensional sheets. This allows for uniform spreading in coatings, composite materials, and other applications, forming dense functional layers. Its ultra-thin thickness of <5nm allows it to retain the high specific surface area characteristic of graphene-like materials, significantly increasing its contact area with other materials. This provides ample space for electron transport, ion transport, and interfacial interactions, which is a key foundation for its excellent performance in energy storage, catalysis, and other fields.
Purity and fluorine (F) content determine the chemical properties and functional stability of fluorinated graphene. A high purity of ~98% effectively reduces the interference of impurities on material performance, ensuring the consistency and reliability of its physicochemical properties and avoiding functional degradation caused by impurities. This makes it particularly suitable for electronic devices and high-end catalysis applications with stringent purity requirements. A reasonable F content range of 47-58% achieves a precise balance of material performance—the introduction of fluorine endows fluorinated graphene with excellent chemical stability, hydrophobicity, and lubricity, making it resistant to corrosion by most acids and alkalis. Its lubrication performance is superior to traditional flake graphite, earning it the nickname "two-dimensional Teflon." Simultaneously, the fluorine content in this range does not excessively damage the carbon atom framework, retaining a certain degree of mechanical strength and electrical conductivity potential, allowing for flexible adaptation of electrical properties through adjustment.
Based on these superior parameters, the application scenarios of this specification of fluorinated graphene are constantly expanding. In the energy storage field, its high specific surface area and stable chemical structure can improve the energy density and cycle stability of electrode materials, contributing to the research and development of high-performance lithium batteries and supercapacitors. In the lubrication field, its ultra-thin sheets and excellent lubrication performance can be used to prepare high-end lubricating coatings, suitable for complex working conditions of high temperature, high speed, and high load. In the corrosion protection field, its dense two-dimensional sheets and hydrophobicity can effectively block corrosive media such as water and oxygen, providing long-term protection for metal materials.
Compared to traditional carbon materials and other graphene derivatives, this specification of fluorinated graphene, with its precisely matched parameters, achieves synergistic optimization of physical and chemical properties. It possesses both the thinness and lightness of two-dimensional materials and the unique functional advantages brought by fluorine. As the preparation process continues to mature, its applications in electronics, energy storage, and new materials will become more in-depth, and it is expected to become a core material driving the upgrading of related industries, continuously expanding the application boundaries of two-dimensional nanomaterials.
