Graphene needs continuous breakthroughs in preparation and application fields

Graphene, a miraculous substance known as the "material of the future", has attracted widespread attention from the global scientific community since its successful preparation by Andrei Gaim and Konstantin Novoselov in 2004, due to its unique physical and chemical properties and broad application prospects. However, despite some important breakthroughs in graphene research, we still face many challenges in its preparation and application. Therefore, we must continue to make breakthroughs in the preparation and application of graphene to realize its true potential.

At the 25th China International High tech Achievement Fair held recently, the world's first industrialized application of two-dimensional graphene material was unveiled. Graphene is considered a material that will change the world. It is currently the thinnest, hardest, most conductive, and thermally conductive material known in the world. This two-dimensional material, which is both transparent, lightweight, and has super toughness, has become a "star" in the field of materials science today.

Mass production of high-quality graphene materials at low cost is a prerequisite for their industrial application. But obviously, the peeling method of "tearing off with tape" is not suitable for the large-scale preparation and production of graphene materials.

At present, the most commonly used method for preparing graphene is chemical vapor deposition, but this method requires high temperature and pressure conditions, and has low yield and high cost. In addition, the quality of graphene prepared by this method varies greatly, making it difficult to meet the needs of different applications.

Secondly, the application of graphene is also an urgent problem that needs to be solved. Since 2010, the application of graphene materials has mainly been powder materials, used as electric heating products, conductive additives, anti-corrosion coatings, etc.

Although graphene has broad application prospects in fields such as electronics, optoelectronics, energy, and biomedical sciences, these applications are still in their early stages due to difficulties in preparation and high costs. For example, the application of graphene in electronic devices can greatly improve device performance due to its excellent conductivity and thermal conductivity. However, due to the high preparation cost of graphene, its application in electronic devices is limited.

To address these issues, we need to continue breakthroughs in the preparation and application of graphene. In terms of preparation, we can make efforts in two aspects: one is to develop new preparation methods, such as liquid-phase exfoliation and microwave-assisted methods, to improve the yield and quality of graphene; The second is to optimize the existing preparation methods, such as improving the conditions of chemical vapor deposition to reduce the preparation cost of graphene.

In terms of application, we can promote the application of graphene through the following ways: firstly, increasing research and development investment to improve the production efficiency and reduce costs of graphene; The second is to strengthen interdisciplinary cooperation and combine graphene with other materials or technologies to develop new applications; The third is to strengthen policy support and provide a favorable environment for the research and application of graphene.

Overall, the preparation and application of graphene is a complex and challenging task that requires continuous exploration and breakthroughs in both theory and practice. What is worth looking forward to in the next 10 years is one-dimensional graphene fiber materials, which are expected to be used as heat dissipation membranes, functional fibers, structural reinforcement fibers, and even super wires. Only in this way can we truly realize the potential of graphene, promote technological progress, and benefit human society.