Metal-organic framework derived single-atom catalysts for electrochemical CO₂ reduction.

ABSTRACT: With maximum atomic utilization, transition metal single atom catalysts (SACs) show great potential in electrochemical reduction of CO₂ to CO. Herein, by a facile pyrolysis of zeolitic imidazolate frameworks (ZIFs) assembled with tiny amounts of metal ions, a series of metal-nitrogen-carbon (M-N-C) based SACs (M = Fe, Ni, Mn, Co and Cu), with metal single atoms decorated on a nitrogen-doped carbon support, have been precisely constructed. X-ray photoelectron spectroscopy (XPS) for M-N-C showed that the N 1s spectrum was deconvoluted into five peaks for pyridinic (∼398.3 eV), M-N coordination (∼399.6 eV), pyrrolic (∼400.4 eV), quaternary (∼401.2 eV) and oxidized (∼402.9 eV) N species, demonstrating the existence of M-N bonding. High-angle annular dark-field scanning transmission

SUBMITTER: Xie M 

PROVIDER: S-EPMC9661489 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature