Graphene has long been considered a hypothetical structure and cannot exist alone. In 2004, British physicists Andre Gaim and Konstantin Novoselov used a special method to strip graphite sheets from graphite and successfully prepared graphene sheets composed of only one layer of carbon atoms. The world has created a magical material that has "the most in the world". This breakthrough result not only confirms that graphene can exist alone, but also breaks the "conclusion" that it cannot manufacture.
Graphene is like a "multi-faceted angel". It has many excellent properties that are not available in general materials. It occupies too many worlds. Its theoretical thickness is 0.34 nanometers, which is only one hundred thousandth of that of hair. It is the thinnest material in the world. The 1 mm graphite sheet can peel off as many as 1.5 million sheets of graphene. It is the world at present. On the lightest material, 1 gram of graphene can cover a football field; its strength is 200 times that of steel and several times that of diamond. If a piece of graphene with the same thickness as food wrap is covered on a cup, think To poke it with a pencil, the weight of an elephant needs to be pressed against the pencil.
In graphene, carbon atoms are arranged like a fine wire mesh fence. This structure also makes it very flexible, and it does not break even when bent at a large angle, so it is the most flexible material. Graphene is the most powerful material known in the world. It can be used in research and development applications such as ultra-light aircraft, infrared seeker, laser weapon, photoelectric detection equipment, ultra-light body armor, etc. in military aerospace, military energy, military engines. , seawater desalination, armor protection, extremely high frequency satellite communication systems and other aspects have broad application prospects.
Graphene was born in graphite, rich in reserves and low in price. Its unique two-dimensional crystal structure and many physical, chemical, biological and other characteristics make it a broad application prospect.
Researchers have developed a variety of graphene-based energy storage devices using the large specific surface area and superior conductivity of graphene, breaking through the bottleneck of small battery capacity and long charging time. In November 2011, the research team at Northwestern University developed a battery of electric vehicles using graphene and silicon. The charge was 10 times higher than before, and the battery life of about 15 weeks can be achieved by charging for 15 minutes. With the rapid development of graphene-derived technology, ultra-high-frequency transistors and flexible touch screens, which are manufactured by them, are popular. The former can be used to support a more secure and concealed ultra-high-frequency military satellite communication system, while the latter can be like clothes. Wear it as softly as you can.
Since the advent of graphene, its theoretical research and application development have made continuous progress, and the huge industry demand in the downstream application field has provided sufficient development space for the entire graphene industry chain.
However, like other new things, graphene's technology development and industrialization are not likely to be smooth. Limited by the preparation techniques and processes, those products that rely on high-purity graphene may take years or even decades to develop. Because this "magic" material still has many technical difficulties that have not been overcome, such as the large-scale preparation of graphene, the process innovation of large-sized graphene, the processing of graphene composites and so on. Only by truly overcome these technical difficulties can we exert the greater potential of graphene materials and bring more surprises to the world.
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Graphene is like a "multi-faceted angel". It has many excellent properties that are not available in general materials. It occupies too many worlds. Its theoretical thickness is 0.34 nanometers, which is only one hundred thousandth of that of hair. It is the thinnest material in the world. The 1 mm graphite sheet can peel off as many as 1.5 million sheets of graphene. It is the world at present. On the lightest material, 1 gram of graphene can cover a football field; its strength is 200 times that of steel and several times that of diamond. If a piece of graphene with the same thickness as food wrap is covered on a cup, think To poke it with a pencil, the weight of an elephant needs to be pressed against the pencil.
In graphene, carbon atoms are arranged like a fine wire mesh fence. This structure also makes it very flexible, and it does not break even when bent at a large angle, so it is the most flexible material. Graphene is the most powerful material known in the world. It can be used in research and development applications such as ultra-light aircraft, infrared seeker, laser weapon, photoelectric detection equipment, ultra-light body armor, etc. in military aerospace, military energy, military engines. , seawater desalination, armor protection, extremely high frequency satellite communication systems and other aspects have broad application prospects.
Graphene was born in graphite, rich in reserves and low in price. Its unique two-dimensional crystal structure and many physical, chemical, biological and other characteristics make it a broad application prospect.
Researchers have developed a variety of graphene-based energy storage devices using the large specific surface area and superior conductivity of graphene, breaking through the bottleneck of small battery capacity and long charging time. In November 2011, the research team at Northwestern University developed a battery of electric vehicles using graphene and silicon. The charge was 10 times higher than before, and the battery life of about 15 weeks can be achieved by charging for 15 minutes. With the rapid development of graphene-derived technology, ultra-high-frequency transistors and flexible touch screens, which are manufactured by them, are popular. The former can be used to support a more secure and concealed ultra-high-frequency military satellite communication system, while the latter can be like clothes. Wear it as softly as you can.
Since the advent of graphene, its theoretical research and application development have made continuous progress, and the huge industry demand in the downstream application field has provided sufficient development space for the entire graphene industry chain.
However, like other new things, graphene's technology development and industrialization are not likely to be smooth. Limited by the preparation techniques and processes, those products that rely on high-purity graphene may take years or even decades to develop. Because this "magic" material still has many technical difficulties that have not been overcome, such as the large-scale preparation of graphene, the process innovation of large-sized graphene, the processing of graphene composites and so on. Only by truly overcome these technical difficulties can we exert the greater potential of graphene materials and bring more surprises to the world.
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