Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 7, Issue 40, Pages 23055-23063Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ta07967j
Keywords
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Funding
- National Natural Science Funds for Distinguished Young Scholar [51725201]
- International (Regional) Cooperation and Exchange Projects of the National Natural Science Foundation of China [51920105003]
- Innovation Program of Shanghai Municipal Education Commission [E00014]
- National Natural Science Foundation of China [21573068, 51902105, 51502092]
- Shanghai Engineering Research Center of Hierarchical Nanomaterials [18DZ2252400]
- Shanghai Sailing Program [19YF1411600]
- China Postdoctoral Science Foundation [2018M641938]
- Natural Science Foundation of China [51372084]
- Natural Science Foundation of Shanghai [18ZR1408700, TP2015028]
- 111 Project [B14018]
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Metal-organic frameworks (MOFs) have exhibited huge potential in the field of CO2 electroreduction but highly stable and active ones are still scarce. This study reports a (5,10,15,20-tetrakis(4-carboxyphenyl)porphyrinato)-Fe(iii) chloride (FeTCPPCl) co-building UiO-66 electrocatalyst for CO2 reduction in an aqueous solution. In situ X-ray absorption spectroscopy (XAS) measurements characterized its robust structure under catalysis. The unique framework of UiO-66 provides the available proton facilitator for improving CO2 reduction activity on iron porphyrin, and a concerted proton-electron transfer (CPET) mechanism might be considered for the catalytic pathway, achieving the highest faradaic efficiency of nearly 100% at an overpotential of 450 mV for turning CO2 to CO in the reported MOFs.
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