Three-dimensional (3D) graphene has huge application potential and existing preparation technology needs to be optimized.

Three-dimensional graphene (3D graphene) is a new type of carbon nanomaterial composed of two-dimensional graphene on a macro scale. Three-dimensional graphene has the characteristics of high specific surface area, excellent mechanical properties, ultra-high electrical conductivity, and high thermal conductivity. It is widely used in thermal interface materials, data centers, new energy, construction, electrochemical energy storage, environmental remediation, aerospace, supercapacitors, and renewable energy. It has broad application prospects in fields such as stretchable conductors and medical carriers.

Graphene is a two-dimensional material composed of sp2 hybridization of carbon atoms. Graphene is the material with the best electrical conductivity currently known. However, due to its special structure, graphene has poor dispersion and thermal conductivity in the polymer matrix, and voids, cracks, edges, heteroatoms, etc. are prone to exist on the surface of graphene. Due to morphological defects, the application effects of graphene are often not as good as expected. In this context, three-dimensional graphene has attracted more and more market attention due to its excellent performance and structural characteristics.

Up to now, a variety of three-dimensional graphene preparation technologies have been developed around the world, including solid carbon source growth method, cross-linking method, graphene oxide (GO) self-assembly method, chemical reduction method, 3D printing method, 3D template assembly method, Chemical vapor deposition (CVD) method, etc. There are various preparation technologies for 3D graphene, but most of the existing technologies have shortcomings such as high cost, poor structural stability, complex processes, and low degree of crystallization, which are not conducive to large-scale mass production of 3D graphene. In the future, they will be high-quality, mass-produced, and low-cost. Three-dimensional graphene preparation technology will still be the focus of industry research.

The three-dimensional graphene market has been developing for a short period of time, but based on its excellent performance and application potential, the three-dimensional graphene market has high enthusiasm for research and development. In terms of composite materials, three-dimensional graphene is used in combination with metal foam, carbon-based materials, inorganic nanomaterials and other materials, which not only optimizes the performance of three-dimensional graphene, but is also expected to expand its application scenarios; in terms of products, three-dimensional graphene related products There are 3D graphene foam, 3D graphene anti-smog masks, 3D graphene batteries, 3D graphene thermal film, etc.

According to the “2022-2026 Three-dimensional (3D) Graphene Industry In-depth Market Research and Investment Strategy Suggestions Report released by the Industrial Research Center It shows that currently there are few mobile phone manufacturers using graphene thermal film in the domestic market, mainly including Huawei, Xiaomi, etc. Among them, Huawei’s new P40 uses 3D graphene thermal film. In the 5G era, the heat dissipation performance requirements of mobile terminals will continue to increase, and the 3D graphene thermal conductive film market is expected to usher in development opportunities. It is expected that the global 3D graphene thermal conductive film market will grow to US$1 billion in 2027.

Industry analysts said that as a new material, three-dimensional graphene has a variety of excellent properties and is widely used in aerospace, consumer electronics, and data centers. , environmental remediation and other fields have broad application prospects. There is high enthusiasm for the research and development of 3D graphene, and preparation technologies are becoming increasingly abundant. However, most of the existing technologies cannot achieve large-scale, low-cost production, and the commercial application of the 3D graphene market in the future still needs to be developed.