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12. Researchers have solved the flammability issue of graphene, thus opening the door to large-scale production

Graphene has significant application prospects in fields such as biomedicine, electronics, energy, and the environment, and has also achieved success in many small application fields. However, because graphene oxide is an intermediate product used to manufacture graphene from graphite, it has been proven to have a fire hazard.

Tian laboratory researchers use three or more positively charged metal ions to peel graphene oxide into a transparent film. This new form of carbon polymer material not only is non flammable, but also has flexibility, non-toxicity, and strong mechanical properties. A potential application is the development of graphene using this non flammable technology to create an energy-saving window coating that can reduce heating and cooling costs.

Tian said, 'There will be more applications, and we expect future car and aircraft windows to be more intelligent than currently, and there will also be night vision applications.'.

13. Graphene nanotube mixture enhances lithium metal batteries

Scientists at Rice University have created a rechargeable lithium-metal battery with a capacity three times that of commercial lithium-ion batteries by solving the long-standing problem of dendrites that has plagued researchers.

Rice researchers led by chemist James Roberts have found that when a new battery is charged, lithium metal uniformly coats carbon nanotubes to covalently connect to a highly conductive carbon hybrid material on the surface of graphene. As reported in the Journal of the American Chemical Society ACSNano, this mixture replaces the graphite anode used in ordinary lithium-ion batteries for exchanging safety capabilities. Tests on the graphene carbon nanotube anode created at Rice University have shown that it resists the formation of lithium dendrites that can damage batteries.

Tour said that many people only focus on the anode in battery research, as making the entire packaging is much more difficult. Therefore, we must develop a sulfur based relative cathode technology to adapt to these ultra-high capacity lithium anodes in the first generation system. We are conducting pilot scale production of these complete batteries with cathodes and anodes, and testing them.

14. Nickel cobalt sulfide core/shell structure on three-dimensional graphene for supercapacitors

The three-dimensional (3D) core/shell structure of nickel cobalt sulfides is generated by nanoengineering using a series of hydrothermal steps on graphene, while graphene used for growing core/shell structures is grown on CVD applied to supercapacitors.

By using NCS nanotube cores as channels for high-speed electron and ion migration, as well as CNS nanosheets as highly active pseudocapacitive materials, the synthesized composite material exhibits excellent electrochemical performance. In addition to supporting 3DNCS/CNS as an excellent surface area, 3D graphene layer also provides excellent conductivity between nickel foam collector and 3DNCS/NCS composite.

This high-performance electrode material may be well applied in future energy storage devices.

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