Journal
CRYSTENGCOMM
Volume 22, Issue 9, Pages 1619-1624Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ce01517e
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Funding
- National Key Basic Research Program of China [2016YFA0200700]
- National Natural Science Foundation of China [21890381, 21721002]
- Frontier Science Key Project of Chinese Academy of Sciences [QYZDJ-SSW-SLH038]
- K. C. Wong Education Foundation
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Transformation of CO2 into fuels has drawn great attention due to increasing carbon emission in recent years. Coupling metal-organic frameworks (MOFs) with molecular catalysts is a promising technique for boosting the efficiency of carbon dioxide capture and conversion. Herein, a CoTAPc-ZIF-90 hybrid catalyst is synthesized by decorating cobalt phthalocyanine on the outer surface of ZIF-90 through a Schiff base reaction. We demonstrate that the ZIF-90 substrate can cooperate with the cobalt active center to boost the electrocatalytic CO2 reduction performance. CoTAPc-ZIF-90 shows a large current density of 13 mA cm(-2) for effective conversion of CO2 into CO in aqueous media at an overpotential of 0.86 V with a faradaic efficiency (FE) of 90%. What's more, the CoTAPc-ZIF-90 hybrid catalyst exhibits significantly higher catalyst stability compared with the free phthalocyanine molecule.
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