Structural Evolution of Cu2O-Derived Hybrids Comprised of Copper Cores, a Silica Interlayer, and Carbon as the Outlayer

Abstract

Constructing yolk–shell-structured non-noble-metal composites is very important for improving their activity and stability in catalytic performance. Herein, we report a facile strategy for the synthesis of ternary [email protected]₂@C yolk–shell composites by converting the resorcinol–formaldehyde (RF) resin-coated Cu₂[email protected]₂ with a core–shell structure via a thermal treatment under a N₂ atmosphere. Notably, the annealing temperature and silica interlayer play vital roles in modulating their structures and catalytic performance. Moreover, this strategy may pave a new way to constructing non-noble-metal-based composites with yolk–shell structures.