Interface rich CuO/Al₂CuO₄ surface for selective ethylene production from electrochemical CO₂ conversion

Abstract

In this work, we designed a novel CuO/Al2CuO4 catalyst by a phase and interphase engineering approach, which enables the electrochemical conversion of carbon dioxide to ethylene with ultrahigh activity and selectivity.

Elucidating electrochemical CO2 reduction reaction processes on Cu(hkl) single-crystal surfaces by in situ Raman spectroscopy

“…Well-defined surface studies provide detailed mechanistic information on the surface interaction of adsorption and intermediate species and can reveal the structure-activity relationship of different surfaces. 29–33 However, it is extremely challenging to acquire in situ spectroscopic evidence from these Cu( hkl ) surfaces while directly monitoring CO 2 RR-related surface species (Fig. 1a), thus making our understanding of the exact CO 2 RR mechanism uncertain.…”

Electrocatalytic Carbon Dioxide Reduction to Ethylene over Copper‐based Catalytic Systems

“…Sultan et al. fabricated a series of catalysts with abundant CuO/Al 2 CuO 4 interfaces [14] . X‐ray absorption spectroscopy (XAS) results revealed that during ECO 2 RR process, the oxidation state of Cu in the catalyst was stable and more positive than that of Cu foil.…”

Current state of copper-based bimetallic materials for electrochemical CO2 reduction: a review

“…• Explore and investigate other metals as they can give a better energy efficiencies and selectivity, for instance Sultan and coworkers have developed Al 2 CuO 4 nanosheets uniformly covered with CuO nanoparticles giving high FE for ethylene (82.4%) and remarkable stability in reaction condition to 100 h; this material achieved high current density of 421 mA cm −2 in a flow cell. 127…”