▎ 摘 要
Front Cover: In article number 1900166 by Yuxin He, Hu Liu, and co-workers, graphene oxide (GO) wrapped MoO3 (MoO3-GO) nanocomposites are prepared by a hydrothermal method. Highly flexible, binder-free, MoO3 nanobelt/graphene oxide film (f-MoO3-GO) is prepared by vacuum filtration technique. f-MoO3-GO modified GF/EP (f-MoO3-GO/GF/EP) composites are prepared by vacuum resin transfer mold (VARTM), which shows excellent tribological performance.