Graphene has been converted into mass for transport



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Graphene in the form of malleable dough may be more economical to store and transport and less prone to combustion.

A team from Northwestern's McCormick School of Engineering contributed to the addition of an ultra-high concentration of graphene oxide in water.

The GO mass can be diluted to obtain gels or dried to produce hard solids. It can also be kneaded and remodeled, supporting extreme deformation without fracture.

Jiaxing Huang, leader of the study, said: "My dream is to turn graphene-based sheets into an easily accessible and readily usable engineering material, as well as plastic, glass and steel. I hope the GO mass can inspire new uses of graphene-based materials, just as the dough can inspire children's imagination and creativity. "

The mass can be shaped into dense solids that are electrically conductive and chemically stable. It can also be processed to produce bulk graphene oxides and graphene materials with tunable microstructures.

Also ideal for bulk fabrication and loading. Currently during transport, the GO is stored as dry solids or powders, or transformed into dilute dispersions, which multiply the mass of the material by hundreds or thousands.

Huang said his latest charge of graphene oxide was dispersed into 500 liters of liquid and had to be delivered by truck.

"The same amount of graphene oxide in the form of dough would weigh about 10 pounds, and I could carry it alone," Huang said.

Although the inclusion of binding additives, such as plastics, also renders GO in a mass state, these additives would alter the properties of the material, unlike the addition of water.

The team's research was published in the journal Communications of nature.

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