Work

The MOF‐Derived Ag@M‐N/Al‐O Catalyst for Highly Selective Electrocatalytic Reduction of CO2 to CO

Year: 2024

Type: article

Abstract: ABSTRACT For ensuring the economic feasibility of the electrochemical carbon dioxide reduction reaction (CO2RR), which can be used to reduce the catalyst load and increase the catalytic activity of CO2RR by using carrier materials. Here, we report the systematic alteration of metal chloride on bipyridine groups in MOF‐253(Al) using modified metal–organic frameworks (MOFs) as precursors and the introduction of Ag nanoparticles to prepare catalysts Ag@M‐N/Al‐O (M = Co, Ni, Zn, Cu). EDS spectra showed the uniform dispersion of Ag nanoparticles. In addition, the chemical structure of the catalyst was analyzed by XPS and PXRD, which proved the existence of M‐N and Al‐O bonds. The interaction with Ag nanoparticles leads to electron density reconstruction, and the stable *COOH intermediates with electron delocalization enhanced by polymetallic electron configuration modulation are conducive to CO production. The results show that Ag@Co‐N/Al‐O can achieve 85.6% FE for CO and has good stability within 12 h. This work provides a new idea for CO2RR material design using MOFs as a precursor catalyst.

Source: Applied Organometallic Chemistry

DOI: 10.1002/aoc.7946