4.5 Article

A two-dimensional perovskite oxyfluoride Pb3Fe2O5F2 as a catalyst for electrochemical oxidation of water to oxygen

Journal

SUSTAINABLE ENERGY & FUELS
Volume 6, Issue 10, Pages 2423-2427

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d2se00282e

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Funding

  1. JSPS [JP16H06439, JP16H06441, JP120213208]

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A two-dimensional perovskite oxyfluoride electrode, Pb3Fe2O5F2, exhibited high activity for electrochemical oxidation of water, with almost unity faradaic efficiency and a significantly lower oxidation potential compared to the 3D bulk analogue PbFeO2F prepared in a similar manner.
A two-dimensional (2D) perovskite oxyfluoride Pb3Fe2O5F2, deposited on a conductive glass substrate, exhibited activity for electrochemical oxidation of water. This 2D oxyfluoride electrode could oxidize water forming O-2 at a relatively low potential of +1.7 V vs. RHE with a faradaic efficiency of almost unity; the O-2 evolution activity was nearly 8-fold higher compared to that for a 3D bulk PbFeO2F analogue prepared in a similar manner.

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