Fig. 1: Synthesis and characterization of MCMOS.

a Schematic illustration for the fabrication of MCMOS. b–d SEM (b) and TEM (c, d) images of DSNs. e–h SEM (e), TEM (f, g) and HAADF-STEM (h) images of MCMOS. i Nitrogen adsorption-desorption isotherm of DSNs and MCMOS. j BJH pore size distributions of DSNs and MCMOS. The inset in (g) is the HRTEM image showing nanochannels in the MOS layer.