2025/01/01 by Yujie Yan, Qiming Yu · 1 voice
Energy · Chemical Engineering · #CO2 Reduction Techniques and Catalysts #Ionic liquids properties and applications #Ammonia Synthesis and Nitrogen Reduction
paper · pdf · doi:10.1515/gps-2024-0135
openalex publication_date 2025/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26
Abstract Rare-earth diatomic catalysts (DACs) not only encompass the advantages characteristic of single-atom catalysts (SACs), but also exhibit the capability to surpass the catalytic activity achieved by single-metal SACs. Nevertheless, DACs are predominantly engineered using transition elements, with limited exploration focusing on rare-earth elements. Herein, we report a Ni–Y diatomic porous carbon electrocatalyst synthesized using an organic ligand strategy, which exhibits excellent catalytic performance in electrochemical CO 2 reduction reaction with high selectivity for CO. Operating at a modest potential of −0.93 V compared to the reversible hydrogen electrode, the Ni–Y DAC, enhanced by the presence of rare-earth element Y, achieves a remarkable Faraday efficiency of 89% and attains an impressive current density of 12 mA·cm −2 . The incorporation of rare-earth element Y facilitates the modulation of electron density pertaining to the Ni constituent, thereby refining the Ni configuration within the porous carbon substrate and eliciting an augmentation in the electrocatalytic efficacy of the material.