Fig. 3From: Fabrication of Yolk-Shell Cu@C Nanocomposites as High-Performance Catalysts in Oxidative Carbonylation of Methanol to Dimethyl Carbonate a, b TEM images of copper core in Cu@C-0.12. c XRD patterns of the products obtained after each step: HCS, HCS-Cu2+, and Cu@C-0.12. d N2 adsorption-desorption isotherm and distribution of pore size of Cu@C-0.12Back to article page