Atomic design of dual-metal hetero-single-atoms for high-efficiency synthesis of natural flavones.

ABSTRACT: Single-atom (SA) catalysts provide extensive possibilities in pursuing fantastic catalytic performances, while their preparation still suffers from metal aggregation and pore collapsing during pyrolysis. Here we report a versatile medium-induced infiltration deposition strategy for the fabrication of SAs and hetero-SAs (M_aN₄/M_bN₄@NC; M_a = Cu, Co, Ni, Mn, M_b = Co, Cu, Fe, NC = N-doped carbon). In-situ and control experiments reveal that the catalyst fabrication relies on the "step-by-step" evolution of M_a-containing metal-organic framework (MOF) template and M_b-based metal precursor, during which molten salt acts as both pore generator in the MOF transformation, and carrier for the oriented infiltration

SUBMITTER: Zhao X 

PROVIDER: S-EPMC9780242 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature