What can a microwave oven at home do to heat food? Maybe you don't believe that the high-tech graphene in our eyes, high-quality graphene, can also be baked in a microwave oven. The research group of Rutgers University in the United States published an article in the online edition of the latest issue of the journal Science. They stated that they have developed a new type of microwave preparation method that can be used to “bake†high quality graphene in home microwave ovens.
Graphene is a two-dimensional crystal that is composed of carbon atoms and has only one layer of atom thickness. It has good electrical and thermal conductivity and has a good application prospect. However, if it is to be widely used, it needs an economical large-scale preparation method to support it. Graphene is derived from graphite, and the simplest method is to use a chemical substance to peel off the graphite layer by layer to obtain graphene. The disadvantage of this method is that an oxidation reaction occurs during the stripping process, forming non-conductive graphene oxide, which greatly reduces its use value. Therefore, removing the oxygen component in the graphene oxide to obtain high quality graphene has become a challenge in the research field of graphene in the past 20 years.
Researchers at Rutgers University discovered that stripping graphene oxide into a microwave oven of 1000 watts and baking for one second can eliminate almost all of the oxygen in graphene oxide, resulting in extremely high quality. Graphene finished product.
According to Manish Dwola, a professor of materials science and engineering at Rutgers University’s School of Engineering, who led the study, the microwave preparation method is very simple, and the quality of the graphene produced is comparable to that of the purest graphene. It is a major advance in the field of graphene research.
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