▎ 摘　　要

Two-dimensional materials have large specific area, high electron transfer capability and abundant exposed active sites, which are beneficial to improve their catalytic properties. Here, we used a simple salt-template method to construct ultrathin graphene-like Fe/N-C nanosheets (named as Fe/GNS-1.5). During the synthesis process, NaCl crystallite serves as a rigid template of two-dimensional mesoscopic structure. Iron nitrate acts as a gas-foaming agent, which plays pivotal part in the morphology and structure of catalysts. The obtained Fe/GNS-1.5 nanosheets with a thickness of 3 nm have a large specific surface area (705 m(2) g(-1)). Benefiting from the structure advantages, Fe/GNS-1.5 exhibits a great bifunctional catalytic performance. The Fe/GNS-1.5 catalyst is employed as air cathode of zinc-air battery to examine its practical application, which presents excellent power density (156 mW cm(-2)) and favorable cyclic stability for more than 600 cycles.