Integration of yolk–shell units into a robust and highly reactive nanoreactor: a platform for cascade reactions.

A three-dimensionally integrated yolk–shell (3D-IYS) nanoreactor with spatially separated functionalities was fabricated via a protection–deprotection approach and core–shell colloidal crystal templates (CS-CCTs). The resulting bifunctional catalyst served as a platform for cascade reactions with excellent activity, selectivity, and recyclability. [ABSTRACT FROM AUTHOR]