Research finds that graphene can be made with sucrose as raw material

According to the report of the American Physicists Organization Network on February 14, American scientists used ordinary sucrose to make pure graphene, which can be used to develop lighter, faster, cheaper, more compact and flexible computers. Electronic equipment can be widely used in military aircraft and medical fields.

The research team led by James Tuhl, a professor of chemistry at Rice University in the United States, first placed a small amount of sucrose on a thin layer of copper foil, and then exposed the sucrose to flowing hydrogen and argon under heating and low pressure. After 10 minutes, the sucrose was reduced to pure single-layer graphene, and the thickness of the graphene film could be controlled by adjusting the gas flow.

The research team's one-step low-temperature processing method is not only relatively simple and controllable, it does not require the use of more difficult-to-handle chemical vapor deposition methods and other methods that require high temperatures, making it easier to manufacture graphene. Tour explained that in the traditional chemical vapor deposition method, scientists need to continuously use gas (methane or ethane) to adjust the growth environment and doping substances of graphene to optimize the quality of graphene, but the new method uses Different carbon raw materials, therefore, can better control the doping of graphene and the thickness of graphene.

Charles Lee, the project director of the US Air Force Scientific Research Service (AFOSR), said the new chemical methods that Tour is exploring can produce high-quality carbon-based nanostructures, such as carbon nanotubes and graphene with specific properties. Graphene doped with other substances is very useful for the Air Force and other commercial electronic products. Pure graphene lacks an energy band gap, which makes it difficult to use as a digital device. But graphene doped with other substances can control the performance of electronic devices and optical devices, which is very important for the manufacture of switching devices and logic devices.

New graphene materials also have great potential in other commercial and medical fields. Scientists can use it to develop transparent touch screen devices, special biocompatible films used in traumatic brain injury surgery, faster transistors in personal computers or thin materials in solar energy capture devices.

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