4.6 Article

Highly oriented MOF thin film-based electrocatalytic device for the reduction of CO2 to CO exhibiting high faradaic efficiency

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 4, Issue 40, Pages 15320-15326

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta04801c

Keywords

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Funding

  1. National Natural Science of China [21120102036, 21573033]
  2. National Basic Research Program of China (973 program) [2014CB239402]
  3. Fundamental Research Funds for the Central Universities [DUT15LK08]
  4. Basic Research Project of Key Laboratory of Liaoning [LZ2015015]
  5. Swedish Energy Agency
  6. K & A Wallenberg Foundation

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A monolithic, highly electrochemically efficient Re-based metal-organic framework (MOF) thin film has been deposited onto a conductive FTO electrode by liquid-phase epitaxy. The X-ray diffraction (XRD) analysis reveals the presence of a highly oriented film grown exclusively along the [001] direction. This epitaxially-grown SURMOF exhibits an extremely high faradaic efficiency of 93 +/- 5% when operated as an electrocatalyst for the reduction of CO2 to CO. In addition, the obtained current densities of the high-quality monolithic coatings exceed 2 mA cm(-2), a value at least one order of magnitude larger than that reported for previous electrocatalytically active MOF thin films.

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