A flexible cofacial Fe porphyrin dimer as an extremely efficient and selective electrocatalyst for the COto CO conversion in non-aqueous and aqueous media
Journal of Materials Chemistry A, ISSN: 2050-7496, Vol: 9, Issue: 34, Page: 18213-18221
2021
- 12Citations
- 12Captures
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Efficient and selective electrochemical reduction of COis a promising approach for its conversion to high value-added chemicals and reducing its green-house effect. Unless a suitable catalyst is used, the reduction occurs at a high overpotential (η) and generates versatile products. Here a novel flexible cofacial Fe perfluorinated porphyrin dimer,f-FePD, was designed for the electrocatalytic CO-to-CO conversion in nonaqueous and aqueous solutions. Thef-FePD showed the CO-to-CO conversion starting at onlyη= 0.15 V that is the lowest reported overpotential in a homogeneous CO-saturated DMF/10% HO/1.0 M PhOH solution. Thisηvalue is 0.29 V lower than that (0.44 V) of the corresponding rigid cofacial Fe porphyrin dimer (r-FePD). Thef-FePD exhibited extremely high turnover frequencies (log TOF) of 2.4 and 7.3 satηvalues of 0.26 and 0.46 V, respectively with >94% CO faradaic efficiency (FE). Moreover, the dimer was immobilized on ketjen black carbon (KBC) and grafted on a glassy carbon (GC) surface to achieve efficient and selective CO-to-CO conversion in neutral aqueous CO-saturated NaHCOsolutions (0.5 M, pH = 7.3) with high durability.f-FePD/KBC@GC showed TOF values of 4.5 and 18.1 swith practical current densities of 3.1 and 12.8 mA cmatηvalues of 0.26 and 0.46 V, respectively. These values, to the best of our knowledge, are the highest reported values achieved in aqueous solutions at such low and moderateηvalues. Several post-operando measurements proved the integrity of thef-FePD under the CO-to-CO conversion conditions. The combination of activity, efficiency, durability, and selectivity of thef-FePD particularly in aqueous solutions is promising for clean energy production.
Bibliographic Details
Royal Society of Chemistry (RSC)
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know