Graphene mostly exists in a quasi-two-dimensional form, with high strength, strong electrical and thermal conductivity and other characteristics. Scientists at the Massachusetts Institute of Technology have recently created a brand new 3D graphene material that is 10 times stronger than steel but only 1/20th the density. A research team at Rice University in the US now uses carbon nanotubes to enhance graphene foam. The resulting 3D material can be molded into any shape and can support its own weight of 3,000 times the load before rebounding to its original height. Reinforced concrete structure is a safe and reliable structure in civil engineering. Rice University's “reinforced graphene†is made from several polycyclic carbon nanotubes. In previous work, this research team has created three-dimensional graphene foams and has used nanotubes to reinforce conventional quasi-two-dimensional graphene. James Tour, chief researcher of the study, said: "We developed graphene foam, but for the kind of application we envision, it is not strong enough, so it is natural to use carbon nanotubes to strengthen it." The team mixed nanotubes with powdered nickel catalysts and sugar to obtain carbon. The dried particles of the material are then pressed in a screw-shaped steel mold and the carbon in the sugar is converted to graphene by chemical vapor deposition. The residual small amount of nickel is removed and the final result is a pure carbon screw-shaped graphene foam. When placed under an electron microscope, the researchers could see that the outer layer of the nanotubes had already begun to "decompress" and bond with the graphene, which allowed the material to support loads that were more than 3,000 times its own weight, not Sustained damage. Even if the weight exceeds 8500 times of its own, only 25% of the structure will be permanently deformed. In contrast, graphene foam without nanotube structure support can only support its own weight of about 150 times the load. The study was published in the journal ACS Applied Materials & Interfaces. Indoor Light,Indoor Wall Lamp,Modern Style Indoor Wall Lamps,Led Down Light Indoor Shenzhen You&My Electronic Technology Co., Ltd , https://www.ymledtrade.com
