Highly Stable and Conductive Microcapsules for Enhancement of Joule Heating Performance.

ABSTRACT: Nanocarbons show great promise for establishing the next generation of Joule heating systems, but suffer from the limited maximum temperature due to precociously convective heat dissipation from electrothermal system to surrounding environment. Here we introduce a strategy to eliminate such convective heat transfer by inserting highly stable and conductive microcapsules into the electrothermal structures. The microcapsule is composed of encapsulated long-chain alkanes and graphene oxide/carbon nanotube hybrids as core and shell material, respectively. Multiform carbon nanotubes in the microspheres stabilize the capsule shell to resist volume-change-induced rupture during repeated heating/cooling process, and meanwhile enhance the thermal conductance of encapsulated alkanes which facilitate

SUBMITTER: Zheng Z 

PROVIDER: S-EPMC4850502 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature