AUTHOR=Bao Weiwei , Deng Zhifeng , Zhang Shaodan , Ji Zhuoting , Zhang Haichang TITLE=Next-Generation Composite Coating System: Nanocoating JOURNAL=Frontiers in Materials VOLUME=Volume 6 - 2019 YEAR=2019 URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2019.00072 DOI=10.3389/fmats.2019.00072 ISSN=2296-8016 ABSTRACT=Nanocoating combine the protective properties of conventional coating system with effects on nanoscale such as high hardness, UV scattering, uniform dispersing, etc. Their facile and low-cost synthesis, together with superior protective properties and multi-functionalities, makes nanocoating attractive candidates for next-generation coating system. In this review, a brief introduction regarding to mainstream nanocoating and its related challenges including the zinc oxide-, titanium dioxide-, silica dioxide-, graphene-, carbon nanotube-based nanocoating system is presented. Finally, a perspective of the nanocoating is demonstrated.