Department of Chemistry, University of California, Irvine, 92617, USA.
Chem Commun (Camb). 2020 Oct 27;56(85):12965-12968. doi: 10.1039/d0cc05556e.
Pt(depe)22 electrocatalyzes the reversible conversion between CO2 and HCO2- with high selectivity and low overpotential but low rates. A comprehensive kinetic analysis indicates the rate determining step for CO2 reduction is the reactivity of a Pt hydride intermediate to produce HCO2-. To accelerate catalysis, the use of cationic and hydrogen-bond donor additives are explored.
Pt(depe)22 对 CO2 和 HCO2- 的可逆转化具有高选择性和低过电势，但反应速率低。综合动力学分析表明，CO2 还原的速控步骤是 Pt 氢化物中间体的反应性，以生成 HCO2-。为了加速催化作用，探索了阳离子和氢键供体添加剂的使用。
