Metal-free bi-functional cooperative catalysis: amine and quaternary amine-functionalized dendritic fibrous nanosilica as heterogeneous catalysts for the Henry reaction and CO2 conversion

This study explores amine-functionalized dendritic fibrous nanosilica (DFNS) as a highly efficient, base-free heterogeneous catalyst for nitro-aldol (Henry) condensation and additive-free CO 2 utilization, outperforming existing catalysts.