Unzipped Nanotubes Show Energetic Promise

Dean Sigler Electric Powerplants, Sustainable Aviation Leave a Comment

Rice University, supported by the Air Force Office of Scientific Research (AFOSR), has demonstrated “a way to boost the efficiency of the ubiquitous lithium ion (LI) battery by employing ribbons of graphene that start as carbon nanotubes.” The AFOSR explains, “Four years ago, [Rice chemist James] Tour’s research team demonstrated that they could chemically unzip cylindrical shaped carbon nanotubes into soluble graphene nanoribbons (GNR) without compromising the electronic properties of the graphitic structure. A recent paper by the Tour team, published in IEEE Spectrum and partially funded by AFOSR, showed that GNR can significantly increase the storage capacity of lithium ion (Li-ion) by combining graphene nanoribbons with tin oxide. “By producing GNR in bulk, a necessary requirement for making this …