Fig. 2From: Fabrication of Yolk-Shell Cu@C Nanocomposites as High-Performance Catalysts in Oxidative Carbonylation of Methanol to Dimethyl Carbonate a Schematic illustration for the synthesis of Cu@C nanocomposites under hydrothermal impregnation condition. TEM images of the products obtained after each step: b HCS, c HCS-Cu2+, and d Cu@CBack to article page