title: Passive Anti-Icing and Active Deicing Films.
abstract: Anti-icing and deicing are the two major pathways for suppressing adhesion of ice on surfaces, yet materials with dual capabilities are rare. In this work, we have designed a perfluorododecylated graphene nanoribbon (FDO-GNR) film that takes advantage of both the low polarizability of perfluorinated carbons and the intrinsic conductive nature of graphene nanoribbons. The FDO-GNR films are superhydrophobic with a sheet resistance below 8 kΩ·sq(-1) and then exhibit an anti-icing property that prevents freezing of incoming ice-cold water down to -14 °C. After that point, voltage can be applied to the films to resistively heat and deice the surface. Further a lubricating liquid can be employed to create a slippery surface to improve the film's deicing performance. The FDO-GNR films can be easily switched between the superhydrophobic anti-icing mode and the slippery deicing mode by applying the lubricant. A spray-coating method makes it suitable for large-scale applications. The anti-icing and deicing properties render the FDO-GNR films with promise for use in extreme environments.
authors.affiliation: Department of Chemistry, ‡The NanoCarbon Center, §Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
authors.forename: Tuo
authors.initials: T
authors.lastname: Wang
authors.affiliation: Department of Chemistry, ‡The NanoCarbon Center, §Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
authors.forename: Yonghao
authors.initials: Y
authors.lastname: Zheng
authors.affiliation: Department of Chemistry, ‡The NanoCarbon Center, §Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
authors.forename: Abdul-Rahman O
authors.initials: AR
authors.lastname: Raji
authors.affiliation: Department of Chemistry, ‡The NanoCarbon Center, §Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
authors.forename: Yilun
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Chemistry, ‡The NanoCarbon Center, §Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
authors.forename: William K A
authors.initials: WK
authors.lastname: Sikkema
authors.affiliation: Department of Chemistry, ‡The NanoCarbon Center, §Department of Materials Science and NanoEngineering, Rice University , 6100 Main Street, Houston, Texas 77005, United States.
authors.forename: James M
authors.initials: JM
authors.lastname: Tour
keywords: anti-icing; deicing; graphene nanoribbon; lubricant; spray-coat; superhydrophobic