Modular assembly of metal nanoparticles/mesoporous carbon two-dimensional nanosheets

Abstract The manipulation of polymeric micelles across extended-length scales is a key challenge in the design integrated mesoporous materials with well-defined geometry and advanced functions. Herein, we demonstrate modular assembly strategy to construct metal nanoparticle functionalized carbon two-dimensional (2D) nanosheets by organizing zero-dimensional (0D) spherical monomicelle modules on 2D supporting blocks. process involves two steps: “modularization” step used synthesize highly uniform metal–catecholamine (MC) complex “modules” that can be conveniently assembled blocks (graphene oxide (GO), WS 2 , MXene) following “assembly” step. After an annealing process, resultant composites possess single-layered nanosheet surrounded at both sides exhibit ordered mesostructures large surface areas (~385 m g −1 ), tunable pore sizes (16–25 nm) dispersed metal-containing nanoparticles. Due modularity this range species (Co, Fe, Ni, V, Cu, Pd, FeCo, CoNi, FeCoNi) in-situ incorporated into frameworks, which are partially embedded walls remaining part exposed channels. Benefiting from unique textual structures, GO-derived functional (Co as being annealed 850 °C) excellent electrocatalytic activity, long-term stability, superior methanol tolerance for oxygen reduction reaction, holds great potential catalyst fuel cells.