August 12, 2025
Journal Article

Highly Dense Atomic Fe-Ni Dual Metal Sites for Efficient CO2 to CO Electrolyzers at Industrial Current Densities

Abstract

Carbon-supported, atomically dispersed, nitrogen-coordinated metal sites (e.g., Fe and Ni) are arguably the most promising catalysts for the electrochemical reduction of CO2 to CO due to their unique catalytic properties and the use of earth-abundant elements. However, single metal sites are constrained by their structural simplicity, causing either too weak or too strong absorption/desorption of multiple critical intermediates (e.g., *COOH and *CO). Current catalysts also suffer from ultra-low loadings (

Published: August 12, 2025

Citation

Qi M., M. Zachman, Y. Li, Y. Zeng, S. Hwang, J. Liang, and M. Lyons, et al. 2025. Highly Dense Atomic Fe-Ni Dual Metal Sites for Efficient CO2 to CO Electrolyzers at Industrial Current Densities. Energy and Environmental Science 18, no. 11:5643-5656. PNNL-SA-210732. doi:10.1039/d5ee01081k

Research topics