Opening book details…
Can I read Lowering Electrocatalytic CO2 Reduction Overpotential Using N-Annulated Perylene Diimide Rhenium Bipyridine Dyads with Variable Tether Length on EtoBox?
Lowering Electrocatalytic CO2 Reduction Overpotential Using N-Annulated Perylene Diimide Rhenium Bipyridine Dyads with Variable Tether Length by Josh D. B. Koenig; Zachary S. Dubrawski; Keerthan R. Rao; Janina Willkomm; Benjamin S. Gelfand; Chad Risko; Warren E. Piers; Gregory C. Welch is a Chemistry article available to read on EtoBox.
What is Lowering Electrocatalytic CO2 Reduction Overpotential Using N-Annulated Perylene Diimide Rhenium Bipyridine Dyads with Variable Tether Length about?
We report the design, synthesis, and characterization of four N-annulated perylene diimide (NPDI) functionalized rhenium bipyridine [Re(bpy)] supramolecular dyads. The Re(bpy) scaffold was connected to the NPDI chromophore either directly [Re(py-C0-NPDI)] or via an ethyl [Re(bpy-C2-NPDI)], butyl [Re(bpy-C4-NPDI)], or hexyl [Re(bpy-C6-NPDI)] alkyl-chain spacer. Upon electrochemical reduction in the presence of CO 2 and a proton source, Re(bpy-C2/4/6-NPDI) all exhibited significant current enhancement effects, while Re(py-C0-NPDI) did not. During controlled potential electrolysis (CPE) experiments at E appl = -1.8 V vs Fc +/0 , Re(bpy-C2/ 4/6-NPDI) all achieved comparable activity (TON co ∼ 25) and Faradaic efficiency (FE co ∼ 94%). Under identical CPE conditions, the standard catalyst Re(dmbpy) was inactive for electrocatalytic CO 2 reduction; only at E appl = -2.1 V vs Fc +/0 could Re(dmbpy) achieve the same catalytic performance, representing a 300 mV lowering in overpotential for Re(bpy-C2/4/6-NPDI). At higher overpotentials, Re(bpy-C4/6-NPDI) both outperformed Re(bpy-C2-NPDI), indicating the possibility of coinciding electrocatalytic CO 2 reduction mechanisms that are dictated b
Who reads Lowering Electrocatalytic CO2 Reduction Overpotential Using N-Annulated Perylene Diimide Rhenium Bipyridine Dyads with Variable Tether Length?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Josh D. B. Koenig; Zachary S. Dubrawski; Keerthan R. Rao; Janina Willkomm; Benjamin S. Gelfand; Chad Risko; Warren E. Piers; Gregory C. Welch
- Published
- 2021
- Language
- EN
- Field
- Chemistry (Physical Sciences)